Alarms Coming From the Shunt Reactor You Must Never Ignore (and what should be done)
Nowadays, monitoring of transformers and shunt reactors is pretty much common. However, the difference is in the nuances. There are dozens of parameters that can be monitored and the the overall cost is not negligible at all. There are many…...
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Mar 24, 2025 | By Edvard Csanyi
Execution of a Turnkey Substation Project: How not to step on the same rake again
Behind the successful execution of a turnkey substation project is always successful project management. Young engineers working on the execution of substation projects often repeat the same mistakes that often lead to unforeseen project costs. Generally speaking, management of turnkey…...
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Mar 03, 2025 | By Edvard Csanyi
The issue of a proper phase sequence (CW or CCW) on electric motors and generators
Phase sequence or phase rotation is one of the most confusing concepts in the electrical engineering. It is often confused with motor rotation. For instance, one would say: “If it doesn’t turn the way you want it, just rewire two… Read more
Jan 06, 2025 | By Edvard Csanyi
Maintenance Practices to be Followed for On-Site Generator Overhauling
This discussion will focus on the on-site overhauling of a gas-powered generator, detailing the essential procedures for its enhancement. It is a common practice for utilities to test electrical assets periodically after a certain interval of time mainly as part…...
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Dec 30, 2024 | By Umer Nasir
Bringing new life to an old Air-Insulated Substation (AIS)
An increasing number of substations globally are aging, while the construction of new ones is hindered by competitive limitations, rigorous environmental rules, and community acceptance issues. Simultaneously, the demand for electricity is consistently escalating, resulting in increased short circuit levels… Read more
Nov 07, 2024 | By Edvard Csanyi
Failures, Testing and Protections Associated with Field Winding of a Generator
Generator field winding is an integral part of the generator set which is responsible for generating the magnetic field that induces the stator emf when the rotor rotates. Regulation of current in this winding with the help of an AVR… Read more
Oct 30, 2024 | By Umer Nasir
Electrical thumb rules for switching, isolating and earthing
It is essential that the electrical engineers, or operators who will be in charge of switching, isolating, and earthing operations of the switchgear have a good understanding of the rules that must be followed. In addition, it is of the…...
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Oct 21, 2024 | By Edvard Csanyi
Practical lesson in grounding and bonding of Gas-Insulated Switchgear (GIS)
With the exception of SF6-to-air bushings terminals, all active portions of gas-insulated switchgear (GIS) are contained within grounded enclosures, which means that they are not susceptible to inadvertent contact. This makes gas-insulated switchgear intrinsically safe. In addition, numerous grounding procedures… Read more
Oct 09, 2024 | By Edvard Csanyi
Managing power transformers in service: The most important economic aspects
Utilities are under intense pressure to maximize the use of their current transformer asset base in order to keep rates down while yet providing excellent reliability. In order to achieve higher loading during both regular and emergency operations, long-standing loading…...
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Sep 16, 2024 | By Edvard Csanyi
Dos and don’ts in site testing and commissioning distribution and transmission plants
The objective of the site inspection and test plan for testing and commissioning is to establish a comprehensive framework for conducting site testing and commissioning activities. It’s as simple as that! The site testing and commissioning of a transmission or…...
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Sep 02, 2024 | By Edvard Csanyi
Maintaining the integrity and earth resistance of substation earthing systems
At the beginning of my career in 2005, I had the opportunity to work at a 500kV substation with the National Transmission and Dispatch Company in Pakistan. During this time, I was introduced to various tools and techniques that were…...
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Aug 26, 2024 | By Muhammad Kashif
How to Design Effective Substation Grounding (Practical Tips)
Substation earthing, or grounding, is essential for electrical safety and reliability in substations, which are critical nodes in the power distribution network. Proper earthing ensures safe dissipation of fault currents into the ground, preventing dangerous voltage build-ups that could cause…...
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Aug 12, 2024 | By Muhammad Kashif
The Job of an Electrical Commissioning Engineer (Activities and Real World Examples)
This article aims to cover the activity of electrical commissioning. Such a task in its entirety would be immense. Commissioning can mean many things in different instances. This article aims to give a philosophical and high level conceptual overview of…...
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Aug 05, 2024 | By Kitab Paul Shah
How to: Isolation, maintenance, and restoration of a 132kV GIS Transformer Bay and Line Bay
This article aims to provide a comprehensive guide to the standard operating procedures (SOPs) for the isolation, maintenance, and restoration of a 132kV GIS Transformer Bay and Line Bay. It will delve into detailed safety checks, specific steps to be…...
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Jul 15, 2024 | By Muhammad Kashif
Standard Operating Procedures (SOPs) for GIS Substations You MUST Fully Respect
This technical article delves into the necessity of Standard Operating Procedures (SOPs) at GIS substations, emphasizing the importance of meticulous documentation, regular review, and formal approval processes to ensure that all operational activities adhere to safety and performance standards. High-voltage…...
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Jun 24, 2024 | By Muhammad Kashif
