Circuit Breaker
What is Circuit Breaker – Working Principle and Arcing Phenomenon
What is a Circuit Breaker? As the name indicates, circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and protects the system
What are Motor Control Centres?
The terms ‘Switchgear’ and ‘Motor Control Centres’ are used in general to describe combinations of enclosures, busbars, circuit breakers, power contactors, power fuses, protective relays,
Introduction to Gas Insulated Substations / Switchgears (GIS)
Gas insulated substations (GIS) have been used in power systems over the last three decades because of their high reliability, easy maintenance, small ground space
Low Voltage Switchgear
As per IEC 60947, switchgears with rated voltages up to 1000 V ac and 1500 V dc are termed as low voltage (LV) switchgear. The
What is a FUSE and How it Works?
A fuse protects an electrical circuit or device from excessive current when a metal element inside it melts to create an open circuit. In this post,
Oil Circuit Breakers – Types, Working and Construction
In oil circuit breakers, some insulating oil (e.g., transformer oil) is used as an arc quenching medium. Working Principle of Oil Circuit Breaker When the
Circuit Breakers – Interview Questions with Answers
1. What is a Circuit Breaker? Circuit Breaker is a mechanical device designed to close or open contact members, thus closing or opening an electrical
Circuit Breaker – Design and Construction Basics
Related Topics Switchgear – ComponentsCircuit Breaker – OperationArching PhenomenonMethods of Arc ExtinctionTypes of Circuit BreakersOil Circuit BreakerAir Blast Circuit BreakerAir Circuit BreakerSF6 Circuit BreakerVacuum Circuit BreakerMiniature Circuit
Components of Switchgear
The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. Switchgears are the switching devices that form the backbone