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Types of Underground Cables
December 11, 2018
In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or
Circuit Breaker Definition, Working Principle and Arcing Phenomenon
December 8, 2018
Definition A circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and protects the system from
What is an HVDC (High Voltage Direct Current) Transmission System?
December 1, 2018
HVDC stands for High Voltage Direct Current. An HVDC electric power transmission system uses direct current for the bulk transmission of
4 Major Types of Electrical Substations
November 21, 2018
The assembly of the apparatus used to change some characteristic (e.g. voltage, a.c. to d.c., frequency, p.f etc.) of
Starting Methods for Synchronous Motor
November 19, 2018
Synchronous motors are not self-starting. Some additional devices should be used to start the motor. Basically, there are two methods
Need of a Starter (3 & 4 Point) in DC Motors
November 14, 2018
We use 3 and 4 point starters in DC motors. What happens if a DC motor is started without a
Current Transformer (CT) – Construction and Working Principle
September 16, 2018
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current
Classification or Types of Protective Relays
September 5, 2018
The IEEE defines protective relays as: “relays whose function is to detect defective lines or apparatus or other power system conditions
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