In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or … Read moreTypes of Underground Cables

Definition A circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and protects the system from … Read moreCircuit Breaker Definition, Working Principle and Arcing Phenomenon

HVDC stands for High Voltage Direct Current. An HVDC electric power transmission system uses direct current for the bulk transmission of … Read moreWhat is an HVDC (High Voltage Direct Current) Transmission System?

  The assembly of the apparatus used to change some characteristic (e.g. voltage, a.c. to d.c., frequency, p.f etc.) of … Read more4 Major Types of Electrical Substations

Synchronous motors are not self-starting. Some additional devices should be used to start the motor. Basically, there are two methods … Read moreStarting Methods for Synchronous Motor

We use 3 and 4 point starters in DC motors. What happens if a DC motor is started without a … Read moreNeed of a Starter (3 & 4 Point) in DC Motors

A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current … Read moreCurrent Transformer (CT) – Construction and Working Principle

The IEEE defines protective relays as: “relays whose function is to detect defective lines or apparatus or other power system conditions … Read moreClassification or Types of Protective Relays