Distance /Impedance relay
Relay Operation is governed by the ratio of applied voltage to current in the protected circuit. ie,the relay operates depending upon the impedance between the point of fault and the point where relay is...
Author: eees.in
Induction Type Directional Over current Relay:
In order to make directional over current relay to operate to a fault flowing in a specified direction, directional element is added to non directional relay.Directional Overcurrent Relay which is designed to be almost...
Induction type non-directional over current relay
This Induction Type Overcurrent Relay works on the induction principle and initiates corrective measures when current in the circuit exceeds the predetermined value. The actuating source is a current in the circuit supplied to...
KPSC ITI Instructor- Electrician (SC Department) Exam date : 16/09/2020
KPSC ITI Instructor- ( Electrical ) Examination 102/2017- Hall ticket 2020 is out!, Earlier, the exam was scheduled July 2020 but had been postponed due to Novel Coronavirus (COVID-19) outbreak in India. Candidates are...
PROTECTIVE RELAYS
A protective relay is a device that detects the fault and initiates the operation of the circuit breaker to isolate the defective element from the rest of the system. The relay detects the abnormal...
Vacuum Circuit Breaker (VCB) & Sulphur Hexaflouride Circuit Breaker
Vacuum Circuit Breaker (VCB): Vacuum used as an arc quenching medium. The operation of switching on and closing of current carrying contacts and interrelated arc interruption takes place in a vacuum chamber in the...
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