How to Test Percentage Impedance of Transformer?
This article covers transformer impedance testing, one of the acceptances tests for new transformers, and a method for routine testing. … Continue Reading
Power System
Aeolian Vibration of Transmission Conductors
What is Aeolian Vibration? Aeolian vibration is a type of motion caused by wind on conductors and overhead shield wires … Continue Reading
GFCI (Ground Fault Circuit Interrupter) – Working, Types, Installing and Troubleshooting
A ground fault circuit interrupter (GFCI or GFI) is an inexpensive electrical switchgear device that can either be installed in your … Continue Reading
Auto Reclosing of Power Lines and Types of Faults
The goal of the auto reclosing in power lines is to restore the line to service as quickly as possible … Continue Reading
Square D QO Circuit Breakers
QO stands for Qwik-Open. Square D QO Circuit Breakers are fastest tripping circuit breakers at 1/60th of a second. QO™ … Continue Reading
Bundled Conductors in Transmission Lines
The combination of more than one conductor per phase in parallel suitably spaced from each other used in an overhead … Continue Reading
Measurement of Three Phase Power | Wattmeter Methods
This article explains the measurement of three-phase power in star connected or delta connecter load using the wattmeter methods. The … Continue Reading
Types of Underground Cables
In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or … Continue Reading
Circuit Breaker Definition, Working Principle and Arcing Phenomenon
Definition A circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and protects the system from … Continue Reading
What is an HVDC (High Voltage Direct Current) Transmission System?
HVDC stands for High Voltage Direct Current. An HVDC electric power transmission system uses direct current for the bulk transmission of … Continue Reading