The document provides a CV for Ahmed Farouk Menesy including his contact information, skills, education, work experience, and research projects. Menesy has extensive experience in electrical power engineering projects for oil and gas facilities, including design, maintenance, operation, and troubleshooting of electrical systems and equipment. He has also conducted research on mitigating the effects of voltage sags on industrial electrical equipment.
MOST RECENT (D) Ahmed Farouk Menesy C.Vahmed menesy
The document provides a summary of Ahmed Farouk Menesy's skills and qualifications. It includes his contact information, educational background, work experience, skills, and computer proficiencies. Menesy has over 20 years of experience in electrical engineering projects, particularly in the oil and gas industry. He has extensive expertise in electrical systems design, maintenance, and project management.
MOST RECENT (D) Ahmed Farouk Menesy C.Vahmed menesy
This document provides a summary of Ahmed Farouk Menesy's skills and qualifications. It includes his contact information, education background with degrees in electrical engineering, work experience as an electrical engineer for over 15 years on oil and gas projects, skills in areas like power systems design, motor selection and sizing, and publications on research projects.
Mohamed Saad is an electrical engineer from Egypt currently working as the Electrical Section Head at North Region Cement Company in Saudi Arabia. He has over 10 years of experience in electrical maintenance and project management roles in the cement industry. His responsibilities have included planning maintenance schedules, implementing energy savings initiatives, and overseeing automation and control systems. He is proficient in several automation software and control systems used in cement plants.
Ajit Kumar is a senior electrical engineer with over 26 years of experience in design, operation and maintenance of large industrial complexes, power plants, and substations. He has extensive experience in protection design, relay setting, and coordination for systems up to 230 kV. Currently he works as a senior protection engineer for Tebodin in Oman, where he performs protection studies and reviews protection documents for Petroleum Development Oman facilities.
This document provides a summary of Tahir Mahmood Butt's work experience and qualifications. It details that he has over 21 years of experience in the oil and gas industry, including 15 years working as a Senior Electrical Technician at Qatar Petroleum Refinery. It also lists his previous role as an Electrical Technician at Pakistan Petroleum Limited from 1994 to 2000. The document outlines his responsibilities and achievements in both roles, and provides information on his technical skills and qualifications.
Praveen Channe has 19 years of experience in electrical engineering. He currently works as the Deputy General Manager of Electrical Reliability Management at Essar Steel India Ltd in Hazira, Surat. He oversees all electrical activities and maintenance across the company's plants. Channe has extensive experience developing and managing facilities for condition monitoring of transformers, motors, and other electrical equipment to improve reliability. He also leads initiatives in areas such as energy efficiency, safety training, and integrated management systems. Previously, Channe worked on electrical maintenance and troubleshooting of heavy machinery including cranes and substations.
Sujit Das has 12 years of experience in electrical engineering and automation systems for process plants, machine tools industries, and substations. He has expertise in PLC programming, SCADA development, CNC systems, servo drives, VFD drives, and designing electrical systems. Some of his responsibilities include designing, installing, and commissioning automation, electrical, and power management systems for various industries. He is proficient in software such as Eplan, AutoCAD, Solid Edge, and PLC programming packages from Siemens and GE Fanuc.
Narendra Charola has over 9 years of experience as an Electrical Manager at Reliance Industries Limited in Jamnagar, India. He leads a group of electrical engineers responsible for the smooth running of the crude complex, which includes two identical 325,000 barrels per day crude oil processing trains. His responsibilities include maintenance of the electrical systems and protection relays, planning and execution of maintenance activities, and ensuring plant reliability. He has experience in commissioning new projects, shutdown planning, and safety management. Narendra holds a Bachelor's degree in Electrical Engineering and has received training in areas such as process safety management, power systems, and electrical equipment.
MOST RECENT (D) Ahmed Farouk Menesy C.Vahmed menesy
The document provides a summary of Ahmed Farouk Menesy's skills and qualifications. It includes his contact information, educational background, work experience, skills, and computer proficiencies. Menesy has over 20 years of experience in electrical engineering projects, particularly in the oil and gas industry. He has extensive expertise in electrical systems design, maintenance, and project management.
MOST RECENT (D) Ahmed Farouk Menesy C.Vahmed menesy
This document provides a summary of Ahmed Farouk Menesy's skills and qualifications. It includes his contact information, education background with degrees in electrical engineering, work experience as an electrical engineer for over 15 years on oil and gas projects, skills in areas like power systems design, motor selection and sizing, and publications on research projects.
Mohamed Saad is an electrical engineer from Egypt currently working as the Electrical Section Head at North Region Cement Company in Saudi Arabia. He has over 10 years of experience in electrical maintenance and project management roles in the cement industry. His responsibilities have included planning maintenance schedules, implementing energy savings initiatives, and overseeing automation and control systems. He is proficient in several automation software and control systems used in cement plants.
Ajit Kumar is a senior electrical engineer with over 26 years of experience in design, operation and maintenance of large industrial complexes, power plants, and substations. He has extensive experience in protection design, relay setting, and coordination for systems up to 230 kV. Currently he works as a senior protection engineer for Tebodin in Oman, where he performs protection studies and reviews protection documents for Petroleum Development Oman facilities.
This document provides a summary of Tahir Mahmood Butt's work experience and qualifications. It details that he has over 21 years of experience in the oil and gas industry, including 15 years working as a Senior Electrical Technician at Qatar Petroleum Refinery. It also lists his previous role as an Electrical Technician at Pakistan Petroleum Limited from 1994 to 2000. The document outlines his responsibilities and achievements in both roles, and provides information on his technical skills and qualifications.
Praveen Channe has 19 years of experience in electrical engineering. He currently works as the Deputy General Manager of Electrical Reliability Management at Essar Steel India Ltd in Hazira, Surat. He oversees all electrical activities and maintenance across the company's plants. Channe has extensive experience developing and managing facilities for condition monitoring of transformers, motors, and other electrical equipment to improve reliability. He also leads initiatives in areas such as energy efficiency, safety training, and integrated management systems. Previously, Channe worked on electrical maintenance and troubleshooting of heavy machinery including cranes and substations.
Sujit Das has 12 years of experience in electrical engineering and automation systems for process plants, machine tools industries, and substations. He has expertise in PLC programming, SCADA development, CNC systems, servo drives, VFD drives, and designing electrical systems. Some of his responsibilities include designing, installing, and commissioning automation, electrical, and power management systems for various industries. He is proficient in software such as Eplan, AutoCAD, Solid Edge, and PLC programming packages from Siemens and GE Fanuc.
Narendra Charola has over 9 years of experience as an Electrical Manager at Reliance Industries Limited in Jamnagar, India. He leads a group of electrical engineers responsible for the smooth running of the crude complex, which includes two identical 325,000 barrels per day crude oil processing trains. His responsibilities include maintenance of the electrical systems and protection relays, planning and execution of maintenance activities, and ensuring plant reliability. He has experience in commissioning new projects, shutdown planning, and safety management. Narendra holds a Bachelor's degree in Electrical Engineering and has received training in areas such as process safety management, power systems, and electrical equipment.
This document is a resume for Balasubramanian Sudalaiyandi applying for the position of Senior Electrical Technician. It outlines his 8 years of experience in electrical operation, commissioning, and maintenance in oil and gas plants. It details his responsibilities in previous roles including maintenance of switchgear, transformers, motors, and other electrical equipment. It also lists his employment history with 4 previous employers in the United Arab Emirates, Qatar, and Kuwait working on electrical maintenance and commissioning.
This document provides a summary of Damian L. Kaylor's qualifications and experience as a generator field service technician. It includes his areas of expertise, education history, and work experience maintaining and servicing stand-by generator systems over the past 15 years. His experience includes electrical/mechanical systems, substation maintenance/repair, preventative maintenance, analysis/troubleshooting, and leadership/training. He has a background in the army as a prime power production specialist and sergeant, where he installed, operated and maintained utility power systems and oversaw prime power units.
The document is a resume for Ahmed Mohamed Diaa seeking an electrical engineering position. It summarizes his educational qualifications including a degree in power engineering from Helwan University in Egypt. It also outlines his work experience of over 4 years as an Electrical ESP Engineer and Maintenance Engineer at QARUN Petroleum Company in Egypt. It details his responsibilities managing electrical equipment maintenance and projects. Finally, it provides additional qualifications, languages, and computer skills.
Ahmed Raslan Mohammed Raslan is a highly skilled project manager with over 15 years of experience managing high voltage electrical projects in Saudi Arabia and Egypt. He has extensive expertise in maintenance, testing, and commissioning of substations, transformers, circuit breakers, and distribution systems. Currently he is a Project Manager at Naizak Global Engineering Systems in Saudi Arabia, where he oversees all aspects of complex electrical installation projects from planning to implementation. Previously he worked as a Supervisor in Egypt managing substation installations and equipment testing. He holds an MSc and BSc in Electrical Power and Machines Engineering from Cairo University.
P.D.V.Narasimha Rao has over 6 years of experience as an engineer in the power industry. He has experience in electrical design, project coordination, commissioning, and operation and maintenance of power plants and substations ranging from 10MW to 250MW. He is proficient in AutoCAD, ETAP, CGLUX, SAP, PLC, SCADA, AC drives, C, Oracle and has a B.Tech in electrical engineering.
Dharani B.S. is an electrical and control engineer with over 7 years of experience in project management, maintenance, erection and commissioning of electrical and automation equipment in steel plants. He has worked with Welspun Corp Ltd, BMM Ispat Ltd and JSW Steel Ltd on various projects involving motors, transformers, switchgears, PLCs, HMIs and substations. Dharani holds a B.E. in Electrical and Electronics Engineering and has expertise in electrical drawings, equipment installation, programming PLCs and HMIs from manufacturers such as Allen Bradley, Siemens and GE Fanuc.
Resume- Electrical Engineer-project descripitionvineeth ravi
Vineeth Ravi is an electrical engineer seeking a position where he can utilize his abilities and qualifications. He holds a Bachelor's degree in Electrical and Electronics Engineering and has over 10 years of experience working on oil rigs in various roles. He is proficient in PLC and SCADA programming, AutoCAD, and software languages like Java, C++, and VB.
A NEW APPROACH TO DTC METHOD FOR BLDC MOTOR ADJUSTABLE SPEED DRIVEScscpconf
This paper proposes a new approach to direct torque control (DTC) method for brushless direct current (BLDC) motor drives. In conventional DTC method, two main reference parameters are used as: flux and torque. In this paper, the new approach has been proposed to improve the BLDC motor dynamic performance. A main difference from the conventional method of it was that only one reference parameter (speed) was used to control the BLDC motor and the second control parameter (flux) was obtained from speed error through the proposed control algorithm. Thus, the DTC performance has been especially improved on systems which need variable speed and torque during operation, like electric vehicles. The dynamic models of the BLDC and the DTC method have been created on Matlab/Simulink. The proposed method has been confirmed and verified by the dynamic simulations on different working conditions.
This document provides a summary of Selvarajan G's work experience and qualifications. It outlines his 25 years of experience in electrical work, including 16 years of international experience in Yemen, Oman, and Libya oil fields. His roles have included chief electrician, rig electrician, electrical foreman, and senior electrician. He has experience maintaining electrical equipment on drilling rigs and camps according to maintenance plans and specifications. He is skilled in areas like inventory management, electrical installations, troubleshooting, and safety compliance. He holds qualifications like an electrical supervisor license and BOSIET certification.
Having 7+ years of experience as a Sr. Engineer / Engineer in EPC power industry.
• Preparation of Technical Specifications related to Electrical System, Single Line Diagrams, Control schemes, Layouts, and developing drawings as per Site requirement using AUTOCAD.
• Basic Design, Detailed Engineering, Project Co-ordination and commissioning of Power & Distribution
Transformers, 132KV Switchyard equipment, 6.6KV HT Panels, 415V PMCC & MCC Panels, AC & DC Distribution Boards, LDB’s, Batteries & Battery Charger, UPS, HT & LT Cables, Earthing and Lightening Protection system, Illumination system etc.
• Preparation of Bill of Quantities (BOQ) & Costing for Electrical System.
• Preparation of Material indents as per the Site requirement in SAP.
• Review of drawing and documents submitted by Vendors and approving the same.
• Releasing of Approved Drawings to site for Erection and commissioning activities.
• Tendering for Electrical system of Power plants ranging from 10MW to 60MW and Sub-stations upto 132KV voltage level.
CE Power - Capabilities General - Brian WilsonBrian V. Wilson
This document provides an overview of a company that specializes in electrical power services including testing, maintenance, engineering studies, and equipment sales. The company has headquarters in Cincinnati, OH and several regional operation centers. It serves markets such as utilities, industrial facilities, and commercial buildings. Services include substation construction and maintenance, transformer services, relay and communications work, switchgear testing and upgrades, and engineering studies. Notable past projects are described. The company aims to invest in safety and workforce development through an apprenticeship program.
Ajit Kumar is a senior electrical engineer with over 26 years of experience in electrical power system protection, design of industrial plants, power plants, and substations. He is currently working as a Senior Protection Engineer at Tebodin in Muscat, Oman and is looking for a position as a Principal Engineer in Electrical Power System Protection. He has extensive experience in protection design, relay setting, standards, software, and maintenance.
Mostafa Bassiony Bedair Yunis is an electrical engineer from Egypt seeking a challenging technical position. He has over 10 years of experience designing electrical systems for oil, gas, and infrastructure projects. He is proficient in AutoCAD, lighting design programs, and project management. His objective is to utilize his skills while gaining new expertise in a team environment.
This document is a curriculum vitae for Mohamed Asif Haneer. It summarizes his 26 years of experience in project management and commissioning of power plants and substations. It lists his educational background in electrical engineering and highlights some of his major achievements in quickly completing large power projects on time and under budget. It also provides details of his technical skills and roles on several power generation and transmission projects in Saudi Arabia over the past 20 years.
This resume summarizes the career experience of Sarvottam K. Mehta as an electrical engineer, including his education, licenses, employers, roles, and projects. Over his 20+ year career, Mehta has worked on a wide range of projects in industries such as oil and gas, power plants, telecommunications, and buildings. His experience includes electrical engineering for offshore platforms, pipelines, gas terminals, power distribution systems, and more. He has held roles such as senior engineer, principal engineer, and project manager.
Sarvottam K. Mehta is an electrical engineer with over 15 years of experience in various industries including oil and gas, power plants, telecommunications, and buildings. He has worked on projects involving power distribution, substations, lighting, protection systems, and has experience performing calculations and using software like ETAP and SKM. His resume provides details on his educational background and licenses, areas of specialization, employers and roles, and representative projects.
Satish Reddy Pydimarla is seeking a senior position in testing and commissioning. He has over 8 years of experience in testing, commissioning, operation, and maintenance of high and low voltage electrical equipment. Currently he works as a senior testing and commissioning engineer. He has expertise in testing transformers, motors, generators, circuit breakers, and more. He is proficient in AutoCAD, MS Office, and has strong analytical and problem solving skills.
MAHLE Powertrain has 29 test cells in Michigan equipped to support diesel engine testing up to 19L in size. They offer specialized testing like friction analysis, oil consumption testing, and slobber assessment. They can support a wide range of engine development projects from performance testing to durability. They also offer calibration support through their alliance with CAV Engineering.
Ubaid Shuja is an electrical engineer from Peshawar, Pakistan seeking a position utilizing his skills in electrical and power engineering. He has experience constructing, operating, and maintaining 132/220 KV grid stations, inspecting and commissioning 132 KV grid stations, and working on electrical maintenance and power distribution systems. His professional experience includes roles as a trainee engineer constructing and maintaining grid stations, an engineer managing electrical work for a contracting company, and a trainee at a bottling plant maintaining motors and equipment.
This document contains the resume of Mohammad Fazil Mouinuddin. It lists his personal details such as name, date of birth, qualifications, address and contact information. It then outlines his work experience as a Testing and Commissioning Lead Engineer working on substation projects in Saudi Arabia since 2010. It provides details of the various testing activities he has conducted on equipment ranging from 13.8kV to 380kV. It also lists the different relay types tested and software used. Finally, it describes his role and responsibilities on over a dozen specific substation projects in Saudi Arabia.
This document is a resume for Balasubramanian Sudalaiyandi applying for the position of Senior Electrical Technician. It outlines his 8 years of experience in electrical operation, commissioning, and maintenance in oil and gas plants. It details his responsibilities in previous roles including maintenance of switchgear, transformers, motors, and other electrical equipment. It also lists his employment history with 4 previous employers in the United Arab Emirates, Qatar, and Kuwait working on electrical maintenance and commissioning.
This document provides a summary of Damian L. Kaylor's qualifications and experience as a generator field service technician. It includes his areas of expertise, education history, and work experience maintaining and servicing stand-by generator systems over the past 15 years. His experience includes electrical/mechanical systems, substation maintenance/repair, preventative maintenance, analysis/troubleshooting, and leadership/training. He has a background in the army as a prime power production specialist and sergeant, where he installed, operated and maintained utility power systems and oversaw prime power units.
The document is a resume for Ahmed Mohamed Diaa seeking an electrical engineering position. It summarizes his educational qualifications including a degree in power engineering from Helwan University in Egypt. It also outlines his work experience of over 4 years as an Electrical ESP Engineer and Maintenance Engineer at QARUN Petroleum Company in Egypt. It details his responsibilities managing electrical equipment maintenance and projects. Finally, it provides additional qualifications, languages, and computer skills.
Ahmed Raslan Mohammed Raslan is a highly skilled project manager with over 15 years of experience managing high voltage electrical projects in Saudi Arabia and Egypt. He has extensive expertise in maintenance, testing, and commissioning of substations, transformers, circuit breakers, and distribution systems. Currently he is a Project Manager at Naizak Global Engineering Systems in Saudi Arabia, where he oversees all aspects of complex electrical installation projects from planning to implementation. Previously he worked as a Supervisor in Egypt managing substation installations and equipment testing. He holds an MSc and BSc in Electrical Power and Machines Engineering from Cairo University.
P.D.V.Narasimha Rao has over 6 years of experience as an engineer in the power industry. He has experience in electrical design, project coordination, commissioning, and operation and maintenance of power plants and substations ranging from 10MW to 250MW. He is proficient in AutoCAD, ETAP, CGLUX, SAP, PLC, SCADA, AC drives, C, Oracle and has a B.Tech in electrical engineering.
Dharani B.S. is an electrical and control engineer with over 7 years of experience in project management, maintenance, erection and commissioning of electrical and automation equipment in steel plants. He has worked with Welspun Corp Ltd, BMM Ispat Ltd and JSW Steel Ltd on various projects involving motors, transformers, switchgears, PLCs, HMIs and substations. Dharani holds a B.E. in Electrical and Electronics Engineering and has expertise in electrical drawings, equipment installation, programming PLCs and HMIs from manufacturers such as Allen Bradley, Siemens and GE Fanuc.
Resume- Electrical Engineer-project descripitionvineeth ravi
Vineeth Ravi is an electrical engineer seeking a position where he can utilize his abilities and qualifications. He holds a Bachelor's degree in Electrical and Electronics Engineering and has over 10 years of experience working on oil rigs in various roles. He is proficient in PLC and SCADA programming, AutoCAD, and software languages like Java, C++, and VB.
A NEW APPROACH TO DTC METHOD FOR BLDC MOTOR ADJUSTABLE SPEED DRIVEScscpconf
This paper proposes a new approach to direct torque control (DTC) method for brushless direct current (BLDC) motor drives. In conventional DTC method, two main reference parameters are used as: flux and torque. In this paper, the new approach has been proposed to improve the BLDC motor dynamic performance. A main difference from the conventional method of it was that only one reference parameter (speed) was used to control the BLDC motor and the second control parameter (flux) was obtained from speed error through the proposed control algorithm. Thus, the DTC performance has been especially improved on systems which need variable speed and torque during operation, like electric vehicles. The dynamic models of the BLDC and the DTC method have been created on Matlab/Simulink. The proposed method has been confirmed and verified by the dynamic simulations on different working conditions.
This document provides a summary of Selvarajan G's work experience and qualifications. It outlines his 25 years of experience in electrical work, including 16 years of international experience in Yemen, Oman, and Libya oil fields. His roles have included chief electrician, rig electrician, electrical foreman, and senior electrician. He has experience maintaining electrical equipment on drilling rigs and camps according to maintenance plans and specifications. He is skilled in areas like inventory management, electrical installations, troubleshooting, and safety compliance. He holds qualifications like an electrical supervisor license and BOSIET certification.
Having 7+ years of experience as a Sr. Engineer / Engineer in EPC power industry.
• Preparation of Technical Specifications related to Electrical System, Single Line Diagrams, Control schemes, Layouts, and developing drawings as per Site requirement using AUTOCAD.
• Basic Design, Detailed Engineering, Project Co-ordination and commissioning of Power & Distribution
Transformers, 132KV Switchyard equipment, 6.6KV HT Panels, 415V PMCC & MCC Panels, AC & DC Distribution Boards, LDB’s, Batteries & Battery Charger, UPS, HT & LT Cables, Earthing and Lightening Protection system, Illumination system etc.
• Preparation of Bill of Quantities (BOQ) & Costing for Electrical System.
• Preparation of Material indents as per the Site requirement in SAP.
• Review of drawing and documents submitted by Vendors and approving the same.
• Releasing of Approved Drawings to site for Erection and commissioning activities.
• Tendering for Electrical system of Power plants ranging from 10MW to 60MW and Sub-stations upto 132KV voltage level.
CE Power - Capabilities General - Brian WilsonBrian V. Wilson
This document provides an overview of a company that specializes in electrical power services including testing, maintenance, engineering studies, and equipment sales. The company has headquarters in Cincinnati, OH and several regional operation centers. It serves markets such as utilities, industrial facilities, and commercial buildings. Services include substation construction and maintenance, transformer services, relay and communications work, switchgear testing and upgrades, and engineering studies. Notable past projects are described. The company aims to invest in safety and workforce development through an apprenticeship program.
Ajit Kumar is a senior electrical engineer with over 26 years of experience in electrical power system protection, design of industrial plants, power plants, and substations. He is currently working as a Senior Protection Engineer at Tebodin in Muscat, Oman and is looking for a position as a Principal Engineer in Electrical Power System Protection. He has extensive experience in protection design, relay setting, standards, software, and maintenance.
Mostafa Bassiony Bedair Yunis is an electrical engineer from Egypt seeking a challenging technical position. He has over 10 years of experience designing electrical systems for oil, gas, and infrastructure projects. He is proficient in AutoCAD, lighting design programs, and project management. His objective is to utilize his skills while gaining new expertise in a team environment.
This document is a curriculum vitae for Mohamed Asif Haneer. It summarizes his 26 years of experience in project management and commissioning of power plants and substations. It lists his educational background in electrical engineering and highlights some of his major achievements in quickly completing large power projects on time and under budget. It also provides details of his technical skills and roles on several power generation and transmission projects in Saudi Arabia over the past 20 years.
This resume summarizes the career experience of Sarvottam K. Mehta as an electrical engineer, including his education, licenses, employers, roles, and projects. Over his 20+ year career, Mehta has worked on a wide range of projects in industries such as oil and gas, power plants, telecommunications, and buildings. His experience includes electrical engineering for offshore platforms, pipelines, gas terminals, power distribution systems, and more. He has held roles such as senior engineer, principal engineer, and project manager.
Sarvottam K. Mehta is an electrical engineer with over 15 years of experience in various industries including oil and gas, power plants, telecommunications, and buildings. He has worked on projects involving power distribution, substations, lighting, protection systems, and has experience performing calculations and using software like ETAP and SKM. His resume provides details on his educational background and licenses, areas of specialization, employers and roles, and representative projects.
Satish Reddy Pydimarla is seeking a senior position in testing and commissioning. He has over 8 years of experience in testing, commissioning, operation, and maintenance of high and low voltage electrical equipment. Currently he works as a senior testing and commissioning engineer. He has expertise in testing transformers, motors, generators, circuit breakers, and more. He is proficient in AutoCAD, MS Office, and has strong analytical and problem solving skills.
MAHLE Powertrain has 29 test cells in Michigan equipped to support diesel engine testing up to 19L in size. They offer specialized testing like friction analysis, oil consumption testing, and slobber assessment. They can support a wide range of engine development projects from performance testing to durability. They also offer calibration support through their alliance with CAV Engineering.
Ubaid Shuja is an electrical engineer from Peshawar, Pakistan seeking a position utilizing his skills in electrical and power engineering. He has experience constructing, operating, and maintaining 132/220 KV grid stations, inspecting and commissioning 132 KV grid stations, and working on electrical maintenance and power distribution systems. His professional experience includes roles as a trainee engineer constructing and maintaining grid stations, an engineer managing electrical work for a contracting company, and a trainee at a bottling plant maintaining motors and equipment.
This document contains the resume of Mohammad Fazil Mouinuddin. It lists his personal details such as name, date of birth, qualifications, address and contact information. It then outlines his work experience as a Testing and Commissioning Lead Engineer working on substation projects in Saudi Arabia since 2010. It provides details of the various testing activities he has conducted on equipment ranging from 13.8kV to 380kV. It also lists the different relay types tested and software used. Finally, it describes his role and responsibilities on over a dozen specific substation projects in Saudi Arabia.
Bihar is a state located in East India with Patna as its capital. Some key points:
1) Bihar has a long and rich cultural history as the location of ancient kingdoms and the birthplace of Buddhism. It was a center of power for over 1000 years.
2) The state has many important religious and heritage sites including Bodh Gaya, Rajgir, and Vaishali that are popular tourist destinations related to Buddhism.
3) Bihar struggles with development issues but efforts are being made to improve education through new universities and institutes. Literacy rates have risen in recent decades.
چندشنبه با سینا اولین شویِ آخرِ شب فارسی است که توسط سینا ولیالله اجرا میشود. با گذشت بیش از سه فصل از این برنامه، اکنون میتوان به موشکافی خاستگاههای این برنامه و نوع چیدمان و ساختار آن پرداخت. این متن در سه بخش "چندشنبه و دیگری"، "چندشنبه و فرهنگی" و "چندشنبه و ابتذال" سعی میکند تا درباره زوایایی از برنامه با تفصیل بیشتر صحبت کند.
This document provides a summary of 3 topics related to Hollywood: Hollywood Set, which discusses filming locations; Hollywood Icons, which profiles famous actors and actresses; and Hollywood Hills, which describes the scenic areas overlooking the city. Photographs to illustrate each section are included and identified with their respective copyright information.
Redefining health in an age of uncertainty roseConsumerMed
Learn 5 key trends in consumer health. Get a view into the hearts and minds of today’s consumers, including the boomers. Based on the latest research. Presented at ConsumerMed.org 2013 Summit by Pete Rose, Executive Vice President at The Futures Company.
Ahmed Mohamed Diaa is seeking a challenging position. He has over 4 years of experience as an Electrical ESP Engineer and Maintenance Engineer at QARUN Petroleum Company in the Western Desert of Egypt. He has extensive experience planning, supervising and coordinating electrical maintenance activities. He is proficient in ESP design, installation, commissioning and troubleshooting. He has additional qualifications in PLCs, variable speed drives, cathodic protection, ESP design and frac courses. He is fluent in English and has basic French skills.
Muhammad Kashif Rafiq is an electrical engineer with over 10 years of experience testing and commissioning substations in Saudi Arabia. He is currently a Testing & Commissioning Engineer at Hyundai Heavy Industries Co Limited in Al Shuqaiq, KSA, where his responsibilities include testing various switchgear equipment, transformers, generators, and more. Previously, he worked as a Testing & Commissioning Engineer and Site Electrical Engineer in Saudi Arabia, and held electrical supervisory and technician roles in Pakistan. He is seeking new opportunities that utilize his strong technical and management skills.
Dipti Ranjan Rout is an electrical engineer with 5 years of experience working at Essar Steel India Ltd. He has experience in design, engineering, installation, testing, commissioning, operation and maintenance of electrical equipment. He currently works as a Deputy Manager in the DRI plant, overseeing maintenance of transformers, motors, switchgears, drives, and other electrical systems. Rout has experience with high voltage equipment including 33kV and 11kV switchgear. He also has experience with engineering design, material procurement, safety practices, and quality management systems.
This document is a curriculum vitae for an electrical engineer with over 21 years of experience in erection, testing, commissioning, operation, and maintenance of electrical systems for cement plants, power plants, and other industrial facilities. The engineer has a diploma and bachelor's degree in electrical engineering and various technical certificates. Contact information, areas of expertise, work history, educational background, and personal details are provided.
S. Edwin is applying for the position of Electrical Technician. He has over 20 years of experience in electrical maintenance and commissioning in oil refineries and power plants in India and Kuwait. He holds a diploma in electrical engineering and has extensive training in safety, electrical systems, and maintenance. His responsibilities have included maintenance, troubleshooting, commissioning, and overseeing maintenance personnel.
- The summary provides details of A.Pradeep's professional experience as an Electrical and Electronics Engineer with over 12 years experience in maintenance, industrial automation, and project management.
- He is currently a Senior Executive Engineer Electrical at MRF Limited in Pondicherry since 2007, where he is responsible for electrical equipment maintenance, preventative maintenance planning, project coordination, and documentation.
- Prior experience includes positions as a Maintenance Engineer Electrical at Rane Brake Linings Ltd from 2004-2007 and an Engineering Trainee at Hindustan Lever Ltd from 2003-2004 to gain maintenance experience.
Khadar Ali Shaik is an electrical engineer with over 14 years of experience in industrial electrical equipment design, maintenance, and testing. He has designed and maintained high, medium, and low voltage substations ranging from 13.8kV to 138kV. His experience includes working as an electrical engineer and senior electrical engineer for various companies in Canada, Saudi Arabia, and India, where he designed and maintained power generation and distribution systems and supervised engineering teams. He is a registered Professional Engineer in British Columbia and Alberta.
This document contains a resume for Balasubramanian Sudalaiyandi applying for the position of Electrical Technician. It summarizes his 8 years of experience in electrical maintenance, operation, and commissioning roles in oil, gas, and petrochemical plants in the UAE and Qatar. It details his responsibilities in roles with companies like Abudhabi Gas Development Company, Abudhabi Polymers Company, Qatar Shell GTL, Petrochemical Industries Company Kuwait, and British Gas India. It also lists his educational qualifications, computer skills, test equipment experience, and safety training courses.
ELECTRICAL ENGINEER WITH 13 YEARS OF EXPERIENCEEBRAHIM KHALIL
Bachelor of Electrical Engineering with 13 years of experience in Maintenance, Operation, Inspection, Commissioning, Protection, condition monitoring and coordination work of Electrical Maintenance.
This document provides a summary of Shaik Irfan Vali's qualifications and experience as a site engineer specializing in electrical engineering. He has over 5 years of experience commissioning and maintaining solar power plants up to 11MW in size. He is proficient in testing and commissioning various electrical equipment including switchgear, transformers, cables, and protective relays. He seeks a career applying his expertise in electrical installations, maintenance, and industrial projects.
Testing & Commissioning Engineer | Power Supply Tech. | Traction Rail Power |...Sanil Balakrishnan
This curriculum vitae summarizes Sanil Balakrishnan's experience and qualifications. He has over 8 years of experience in electrical testing, commissioning, and maintenance of power systems up to the 33kV level. Currently, he works as a Power Supply Technician for ALSTOM in Dubai, maintaining the power supply systems for the Dubai Metro. He has a Bachelor's degree in Electrical Engineering and is proficient in testing various electrical equipment including transformers, switchgear, motors, and cables.
Kumaran is an experienced electrical and electronics engineer seeking a position that utilizes his skills in maintenance, troubleshooting, and system commissioning. He has over 15 years of experience working on offshore oil rigs and power plants. His technical skills include PLC programming, drives systems, and troubleshooting complex control systems. He is knowledgeable about various automation vendors and has experience leading maintenance teams.
Khadar Ali Shaik is an electrical engineer with over 14 years of experience in industrial electrical equipment design, maintenance, and testing. He has designed and maintained substations, power distribution systems, and power generation units between 13.8kV to 138kV. Currently, he works as an electrical engineer at Williams Engineering Canada, where he performs projects administration, electrical systems design, and coordinates with clients and contractors.
V. Venkateswara Rao is applying for the position of DGM/AGM at Power Projects. He has over 16 years of experience in electrical engineering for power plant projects, operations, and maintenance. His most recent experience includes successfully commissioning various cogeneration power plants. He is currently working as Senior Manager of Electrical and Instrumentation at a thermal power plant project to erect 2 x 38.5 MW power units. He holds a B.Tech in electrical engineering and has extensive experience managing electrical systems for multiple power and industrial projects in India and Iran.
1.Testing, commissioning and maintenance of SCADA /DCS systems and Electrical Drives.
2. Good knowledge of all IEC 61850 standards especially new one IEC 61850-90-1,IEC 61850-90-5 and IEC 61850-9-2LE and configuration process of IEC 61850 based substation automation system.
3. Testing and commissioning of relays of Siemens , SEL and ABB.And testing and commissioning of PCC,PDB, MLDB, Bus-bar, motors ,transformers.
4. HV & LV cables: Laying & termination of HV & LV cables and connection to the panels .
5. Installation of LV Switchgear for the power supply to the LV motors & motor operated valves.
6. Installation of LV motors, Laying & termination of the cables & connection to the motors of different sizes of pumps.
7. Installation of motor operated valve (Mov) : Installation & Erection of control circuits, Laying & connection of LV cables.
8. Testing & commissioning of the electrical instrument such as HMD(Hot Metal Dictator) , pyrometers , proximity sensors ,pressure switches etc
9. Commissioning & Maintenance & Testing of all HT and LT switchgear equipment like Transformers, Relays and Breakers (ACB & VCB).
10. Shutdown maintenance of electrical equipment.
This document is a resume for Gary Steven Katz, an electrical engineer with over 30 years of experience in industrial automation and controls engineering. His experience includes PLC and HMI programming for various manufacturers' systems in industries such as mining, chemical, food and beverage, and petrochemical. He has worked as a project engineer, plant engineer, and electrical designer on automation projects around the world. His resume lists his education, qualifications, professional experience, and contact information.
Wathiq Alanbaki is seeking a position in power and energy systems. He has a Master's in Electrical Engineering from NJIT with a focus on power and energy systems. His experience includes over 10 years as a project engineer working on electrical substations, power distribution systems, and renewable energy projects. He has extensive experience designing, testing, and commissioning high voltage power systems and has managed projects in the US, Jordan, and Iraq.
The document provides a summary of Mahboob Iqbal's career experience and objectives. It outlines over 13 years of experience in project planning, construction supervision, inspection, and commissioning of electrical and instrumentation projects in various industries. It also lists his major capabilities in project execution, testing and commissioning, maintenance, and instrumentation. His most recent role was as an E&I Construction Support Supervisor for a gas treatment plant project in Pakistan.
This document is a resume for Chiranjib Bera summarizing his professional experience and qualifications. He has over 22 years of experience in maintenance planning and control, operations, erection and commissioning. Currently he works as an Assistant Manager of Maintenance at Phoenix Yule Pvt Ltd in Kalyani, West Bengal, India. He has a B.Tech in Electrical Engineering and is proficient in software like MS Office, Oracle, and SAP. He is seeking new career opportunities utilizing his expertise in various areas including maintenance, project management, safety, and operations.
Sadanand Dubey is an electrical engineer with over 8 years of experience in power plant commissioning and maintenance. He is currently working as an Assistant Manager at Jindal Steel & Power Limited in Angul, Odisha. Prior to this, he worked at Visa Steel Limited in Jajpur, Odisha rising from a graduate engineer trainee to senior engineer. He is proficient in testing, commissioning, and maintenance of electrical equipment including transformers, switchgears, motors, and has experience handling projects for power plants up to 810MW in capacity. He is seeking managerial opportunities in electrical commissioning or maintenance.
Similar to MOST RECENT (D) Ahmed Farouk Menesy C.V (20)
1. Ahmed Farouk Menesy
B.Sc., M.Sc., A.Sc, CPT, Member of ASTTBC (ASsociation of Technologists and Technicians of
British Columbia-Canada)
E-mail: ahmed.fm2470@yahoo.com
7895 Tranmere Drive, Suite 205, Mississauga, ON, L5S 1V9,
CANADA
LINKEDIN profile:
http://www.linkedin.com/in/ahmedmenesy
SKILLS:
• Project power systems Design, startup, commissioning, maintenance, and
operation.
• Design, and Set protection Schemes for low (0.4Kv), Medium (6 & 11) Kv,
and high voltage 66Kv systems.
• Design Grounding and Lightning protection grids, as well as Cathodic
Protection systems for above ground and underground storage tanks and
transmission pipes.
• Sf6 substation system maintenance, ABB.
• Troubleshoot and maintenance of Gen. Sets 2.5 MW (brushless excitation
system).
• In-detail operation/maintenance of trio-bus (66, 11, 0.4) kv electrical
substations.
• In-detail knowledge of electrical systems including preparation, added extras
and modifications on major and minor circuits.
• Maintenance and troubleshoot of the SCR-controlled heating systems.
• Heat tracing systems Design and maintenance.
• Refineries and hazardous location projects electrical systems design, start-
up, operation then maintenance. (Two major projects ANRPC-Alexandria
National for Refining and Petro-chemicals Co., and QPC-Qaroun Petroleum
Co.).
• Capable to perform short circuit, load flow, feeder sizing and voltage drop
analysis manually and using Industrial Standard software packages (PSCAD,
ETAP).
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2. • Performing Arc Flash Studies for electrical systems, Hazardous Area
Classification, and grounding/bonding requirements.
• Management skills as well as team leading skills.
• Design electro-magnetic equipment using Industrial Standard software
packages (ANSOFT MAXWELL), and verify design through (MATLAP). A
designed a prototype LPMSM (Linear Permanent Magnet Stepper Motor),
still in use in the Arab Academy for Science, Technology, and Maritime
Transportation (AAST-http://www.aast.edu/en/ ).
• Selecting and sizing motors (induction/synchronous motors up to 2.5 MW,
11 Kv) for different industrial processes. The commission, startup,
maintenance, and operation/troubleshooting phases are included. This
includes undergoing starting effects study, cable sizing, and selectivity study
of protective relaying. This has been practiced during work period for ANRPC
co. The work hog there is a two-speed, 11 kV, 2.5 MW induction motor,
driving a screw compressor for Hydrogen compression. The motor has been
designed by (Schorch Motor Company /
http://www.schorch.de/html/f,31,High-voltage-machines.htm ), specially to
suite our requirements that we quoted, after assessing process
requirements. Then, commissioned, started-up, and installed by our team of
research and development.
• Maintenance and troubleshoot MV induction motors (6 & 11) Kv, (Drive-
Power controlled)/DOL, generators (diesel – turbine) (11) Kv, as well as the
MV/HV transformers (5, 35) MVA, (11/0.4 Kv, 0.4/0.4 Kv, and 66/11 Kv),
both for gas compression and for artificial lifting purposes.
• Design and troubleshoot motor control schemes, both DOL and VFD,
Controlled by integrated PLC stations. This includes calibration of existing
controllers and sensors.
• Maintenance of industrial UPS, and battery charger systems.
• Maintenance of Fluid powered systems automation.
• Modifying/Revamping already-existing industrial electrical installations.
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3. • Research abilities to investigate technical problems coming up in
professional and scientific approach. The methodology used is that utilized
in lean six sigma projects (Design, Measure, Analyze, Implement, and
Control), all is done in accordance with API, IEC, NEC, ANSI/IEEE, and NFPA
standards.
• Experience in oil and gas industrial projects as a senior electrical engineer in
reputed organization.
• Plan, organize and direct project execution in accordance with the planned
scope of work.
• Train, manage and evaluate project team members, and design training
courses; then, apply the performance metrics to have hands-on knowledge
progress and effectiveness of the training course materials.
• Engineering Technology Support Specialist at the front-line (supervisory
level), raising the level of performance of production/workers, both to assist
the individuals, and to help employers ensure their workforce increases the
company’s productivity and competitiveness through implementation of
Lean 6-Sigma strategies.
• Automation Specialist, PLC controlled processes and systems. (Allen Bradly).
• Lean Manufacturing Specialist-Lean six-Sigma.
• Experience as a Field Service QA engineer and well-grounded in industrial
processes ·ISO 9001:2000, ISO 14001 & OHSAS 18001 management
systems.
EDUCATIONAL/TECHNICAL CREDENTIALS:
• Member of ASTTBC (Associate of Technologists and Technicians of British
Columbia).
• CPT - Certified Production Technician,(2014) from Manufacturing Skill and Standards
Council (MSSC) – USA. http://www.msscusa.org/production-certification-cpt/
• A.Sc. in Engineering Technology, (2014) from Hillsborough Community College
(HCC), Tampa, Florida, USA. http://www.hccfl.edu/.
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4. • Hillsborough Community College (HCC)-accredited Automation Certificate.
• Hillsborough Community College (HCC)-accredited Hydraulics and Pneumatics
Certificate.
• Hillsborough Community College (HCC)-accredited Lean Manufacturing Certificate.
• M.Sc. degree in Electrical Engineering, (2005) from Faculty of Engineering – Arab
Academy for Science and Technology (AAST), Alexandria, Egypt.
http://www.aast.edu/en/
• B.Sc. degree in Electrical Power Engineering, (1994) from Faculty of Engineering –
Mansoura University, Mansura-Egypt. http://www.mans.edu.eg/en
ENGINEERING/TECHNICAL DESIGN COMPUTER COMPETENCIES:
• Etap7 (power systems design and testing).
• Ansoft Maxwell for electromagnetic system design and analysis (electromagnetic
machine design).
• Matlab2008.
• PSCAD for the design of electrical power systems design, and testing.
COMPUTER SKILLS:
• MS Office.
• AutoCAD.
• Photoshop.
• 3D-Solid.
WORK EXPERIENCE:
• From (May 1st, 1994) to (June 30th, 1995), Electrical Power Engineer in Egyptian
Air Force workshops headquarters located in Cairo.
Job Duties: responsible for troubleshoot, maintenance, and repair of stand-
alone diesel generators (brushless-excited). The brands were mainly
Caterpillar, and of capacities ranging from 60 Kw to 2.5 Mw.
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5. • From (June 30th, 1995) to (Jan. 1st, 1997), Assistant teacher for Electrical
machined design, and related lab experiments at the Faculty of Engineering-
Mansura University.
Job Duties: lecturing the design principles for electric machines for the two senior
years in the Faculty of engineering-Electrical Power and Machines department.
Designing prototypes, related testing, and performance experiments.
From (Aug. 11th
, 2013) to (Dec. 11th
, 2014), enrolled for A.Sc. in Engineering
Technology at HCCFL – (Hillsborough Community College – Florida). Advanced PLC
control for motors in industrial processes/Electrical Power and Machined Control.
Job Duties: Study and assist in mentoring students in the related
electrical/electronic subjects, and Lab work.
• From (Sep. 10th
, 2000) to (Aug. 11th
, 2013), Electrical Power Engineer (Operational
Manager of Electrical Power substation for Operation and Maintenance) - Alexandria
National for Refining & Petrochemicals Co. (ANRPC). The company was in the
construction phase by 2000, and we were responsible for the design of the electrical
sysems and all relevant studies. We utilized ETAP for the study of short-circuit
analysis, and the voltage drop study caused by 3 each 2.5 MW motors starting
behavior, and the effect of that on the under-voltage setting of the relays. That was
held during the design phase of the electrical system of (ANRPC) company in 2000,
and later on for the revamping of the units in 2006. The study of the voltage sag
effects had been undergone again, but for the contactors in the motor control
centers. The summary of that study is entailed at the end of the CV.
Job Duties: responsible for maintenance, operation and troubleshoot:
• 66/11 kV electrical substation operation and maintenance (SF6 insulating
medium).
• Distribution transformers 35 MVA, 5MVA.
• Medium and low voltage induction type squirrel cage motors and their
control centres (FVNR, FVR).
• VFD controlled motors.
• Power factor correction capacitors.
• Medium and low voltage circuit breakers.
• Emergency diesel generator.
• UPS unit, battery charger (SAFT, CHLORIDE).
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6. • HVAC system, lighting panels (CARRIER).
• Cathodic protection systems design and maintenance for oil storage tanks
(on-ground and aboveground), pipelines and steel structures in different
environments (offshore and on-shore).
• Constructed different electrical equipment by using hand tools and power
tools.
• Repairing and replace wiring of old installed electrical equipments.
• Thyristor-controlled inductrial heaters (ELTRON).
• Troubleshooting, Programming and installation of PLC's.
• Training new staff on how to install, repairs, and maintain the electrical
tools.
• Maintaining, repairing newly, and old installed electrical systems.
• Preparing layout and setting up of electrical wiring, based on work condition
and local/international codes NFPA, NEC, and OSHA.
• From (Feb. 16th
, 1999) to (Sep. 9th
, 2000), Electrical Power Engineer - self employed.
Job Duties: Conducting private business concering the design of power systems for
both residential and industrial facilities.
• From (Jan. 1st
, 1997) to (Feb. 15th
, 1999), Electrical Power Engineer - Qaroun
Petroleum Company (QPC).
Job Duties: Maintenance and troubleshoot:
• Electrical Motors MV 3.3 Kv & LV 0.4 KV - brands GE, Toshiba, Mitsubishi.
• Brushless Generators - brands Caterpillar, Berkens.
• Static frequency converters for synchronous generators starting.
• Transformers including special-design transformers (Catholic Protection Tr.
& Welding Tr.).
• Electrical Submersible Pumps (MV Motors & Panels) including their VSD
Systems versions for Brands ESB, Centrilift, REDA).
Most of the above mentioned items was listed in a CMMS (Computerized Maintenance
Management System) programs and the maintenance schedule was organized through that
program.
DESIGN, RESEARCH, DEVELOPMENT PROJECTS, AND PAPER PUBLICATIONS:
1. Design of a Linear Permanente Magnet Stepper Motor prototype (2005), this prototype
is still in the Arab Academy for Science, Technology, and Maritime Transport (AAST).
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7. 2. Paper published under the title “The Effect of Air Gap Variation on Linear Permanent
Magnet Stepper Motor” in the 5th
International Engineering Conference held in Sharm
El-Sheikh resort, Egypt 2006, under the auspices of Mansoura University.
3. Member of the research and development team investigated the phenomenon of
“Voltage Sag Effects on MV Induction Motors” for ANRPC Company in 2000. A Dynamic
Voltage Restorer was installed at the MV bus as per the study recommendations.
4. Member of the research and development team investigating “Mitigating the Effect of
Voltage Depression on Industrial Motor Control Centers Contactors”. It was derived and
considered as expansion of the study in (3). The same principles were implemented
regarding the effect of saturation of the magnetic circuit; investigations related to the
particularity of contactor sizes compared to that of motor cores were just needed. The
summary of the study is followed hereunder:
Introduction:
Electrical contactors are electromechanical devices that are identified as the weak links
in many industrial processes during supply voltage transient events. Contactors act as
ac switches in a variety of electrical systems for both power and control purposes.
Problems may occur when contactors disconnect during power disturbances. Since the
initiating events occur outside the system’s control zone, and are random; the resulting
disconnects may lead to an uncontrolled and possibly expensive process outages.
Study plan: detecting the behavior of the contactors under:
• Steady-State min. hold-on voltage.
• Point-on-the wave disengagement voltage.
Disengagement of the electrical contactors requires a combination of factors:
• Depth of the voltage sag and its duration.
• Mechanical system designed so that the electrical contacts engage before the
armature has completed its movement. As a result, the electrical contacts
engage before the magnetic circuit fully engages and the magnetic circuit
disengages partially before the electrical contacts have disengaged. This
behavior allows for a combination of conditions that will allow the magnetic
circuit to disengage and then re-engage without any disengagement of the
electrical contacts.
Test setup:
• AC contactor ABB made, rated 100 A, category AC4, supplied by 220 v, 50 Hz
from a Voltage Sag Generator.
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8. • Power supply connected to the contacts so as they output 24 v when fully
engaged and 0 when dropped-out.
Study Methodology:
Steady-State min. hold-on voltage study:
Conducted to establish the Steady-State Min. Hold-on Voltage keeping the contactor
engaged after it picks up completely.
The importance of this experiment is that it provides a baseline to compare contactor
performance during steady-State sags. In other words, we determine experimentally a
contactor min voltage beyond which the magnetic circuit starts to dropout.
The steady state voltage was gradually decreased until the contactor disengaged at
about 40% of nominal voltage, 88 v, which is the same ratio for all contactors having
same magnetic circuit frame and spring stiffness.
Results:
• Contactor had been found to be disengaging during sags that never drop below
the Steady-State min. hold-on voltage and that behavior might lead to the
conclusion that contactors exhibit a random disconnect behavior during sags.
This is not the truth as a steady-state study alone neglects the transient
behavior, or point-on-the wave (phase angle), and magnitude of voltage
depression (magnitude).
Point-on-the wave disengagement voltage study:
Conducted to establish the impact of Point-In-Wave (i.e. phase angle) of the initiation of
voltage sags on contactor disengagement. Data was taken to establish the minimum
voltage that would cause the magnetic circuit to disconnect as a function of point in
wave. Data was taken to determine the minimum voltage that would cause the electric
circuit to disengage was established as a function of point in wave. The sags were set for
a duration close to 20 cycles to ensure that the magnetic circuit of the contactor
achieved steady-state and the core is totally magnetized by the sagged voltage.
Data was taken where the sag occurred at 10 degrees intervals starting after the first
zero crossing.
An indication of the magnetic circuit disconnect was the clearly audible clicking of the
contactor itself as the armature re-engaged with the magnet frame. The status of the
electrical contacts was monitored by attaching a power supply to one pair of contacts.
The oscilloscope showed 5 v when the contacts were engaged and indicated 0 v when
the contacts were open.
Results:
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9. • The magnetic circuit first alone disengaged at voltage sags ranging from 147.4 v
to 94.6 v (67% to 43% of nominal voltage), and over points-in wave ranging
from 0 ms to 2.7 ms. Whereas the electric circuit came second, and alone
disconnected at voltages ranging from 136.4 v to 94.6 v (62% to 43% of nominal
voltage), and over points-in wave ranging from 5.2 ms to 8.5 ms depending on
the point in wave where the sag occurred. Over the range of in-wave points
ranging from 2.7 ms to 5.2 ms after the positive zero crossing, both electric and
magnetic circuits disconnected at the same voltage sag level.
• The disconnecting voltages were higher than that of the Steady-State Min.
hold-on Voltage (89 v). This could not be achieved using steady-state analysis
alone.
Conclusion and recommendations:
• The study of such phenomenon could not have achieved correct goal without
considering the combined effects of the electrical circuit and that of the
magnetic circuit.
• The division of these two circuits and subject them into study was necessary to
super-impose their mutual effect to get the conclusion.
• The voltage sags can affect contactors at values of depressed voltage values
higher than that of the minimum hold on value due to the point on wave on
which that voltage sag occurs.
• Considering the occurrence of voltage sag at the voltage zero crossing would
have a minimum effect as the magnetic circuit is highly magnetized; whereas
occurrence at or near the peak of voltage would be weakening the magnetizing
while in reversal phase, that leads to start to interrupt the magnetic circuit, and
due to the effect of the loading, a counter torque is established opposing drop-
out process. That causes the current in the contactor coil rises to high levels in
the reverse direction.
• The magnitude of the depression percent will be reflected in magnified effect
of that occurring at each point on the wave.
• The comparison of the results had shown great resemblance to those held by
other research teams considering the same point.
• Fitting a hold-on contacts to ride-through the voltage sags are not going to
eliminate voltage sags totally, it can ONLY pass some incidences.
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10. • The mitigation procedure necessitates fitting a DYNAMIC VOLTAGE RESTORER
at the busses having dynamic loads such as large induction motors / dense
concentration of induction motors.
• Its feasibility study showed that ROI for this solution would be 3 years. Since
this equipment has been installed in 2009 till date, no single outage incident
has been recorded. The company savings was 500,000 $/y.
Research References:
[1] M. F. McGranaghan, D. R. Mueller, M. J. Samotyj, “Voltage sags in Industrial
Systems,” IEEE Transactions on Industry Applications, Vol. 29, No. 2, March/April, 1993.
pp. 397-403.
[2] H. P. Neff, Basic Electromagnetic Fields, Harper and Rowe, New York, 1981, pp. 253.
[3] H. C. Roters, Electromagnetic Devices, John Wiley, New York, 1941, pp. 468.
[4] M. A. Bridgwood, “Modeling AC contactor Point-on-Wave Drop-out Characteristics,”
Submitted to IEEE Transactions on Power Delivery, January 1997.
[5] “The Impact of Power System Disturbances on AC-Coil Contactors”, E. Randolph
Collins, Jr. and Michael A. Bridgwood, Department of Electrical and Computer
Engineering, Clemson University, Clemson, SC 29634-0915 USA.
Study & research team members:
• Dr. Eng. / Tarek El-shennawy, Ph.D.
Acting Electrical Substations Maintenance and Operation Sector Manager
E-mail: tshennawy@yahoo.com
Cell. : +20 (122) 392 6297
• Eng. / Ahmed Abdul-Monem, B.Sc., A.Sc.
Acting Sector Manager for Research and Development
E-mail: ahmedbsam@yahoo.com
Cell. +20 (114) 160 1118
• Eng. / Ahmed Farouk Menesy, B.Sc.,M.Sc., A.Sc., CPT
Operational Manager of Power-Stations
E-mail: ahmed.fm2470@yahoo.com
Cell. +1 (813) 482 1311
REFERENCE PERSONNELS:
Alessandro Anzalone, Ph.D., CPT
Hillsborough Community College - Brandon
Campus
Program Manager
Engineering Technology
10414 E. Columbus Drive
Tampa, FL 33619-7856, USA
Tel. +1 813 399 7253
E-mail: aanzalone2@hccfl.edu
Glorianna Rhodes
Hillsborough Community College – Dale
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11. Mabry Campus
Program Manager
4001 W. Tapa Bay Blvd.
Tampa, FL 33614-7810, USA
Tel. +1 813 253 7314
E-mail: grhodes@hccfl.edu
Miguel Angel Garcia
Hillsborough Community College - Brandon Campus
Program Manager
Florida TRADE Grant (FLATE)
10414 E. Columbus Drive
Tampa, FL 33619-7856, USA
Tel. +1 813 259 6560
E-mail: mgarcia147@hccfl.edu
Eng. / Gamal Ibrahim Ahmed
Electrical Power Directorate General Manager
Cell. : +20 (111) 777 2732 / +20 (100) 528 1568
E-mail: electrical@anrpc.com
Dr. Eng. / Tarek El-shennawy, Ph.D.
Acting Electrical Substations Maintenance and Operation
Sector Manager
Cell. : +20 (122) 392 6297, EGYPT
E-mail: tshennawy@yahoo.com
Eng. / Ahmed Abdul-Monem, B.Sc., A.Sc.
Acting Sector Manager for Research and Development
Cell.: +20 (114) 160 1118, EGYPT
E-mail: ahmedbsam@yahoo.com
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