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 from hazards. Keep reading to understand the working principle of circuit breaker. The function of a circuit breaker is to isolate the faulty point of the power system in case of abnormal conditions such as … [Read more...] about What is Circuit Breaker – Working Principle and Arcing Phenomenon
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, controls and indicating devices.Read more about switchgear here What is Switchgear? | Features, Components and ClassificationThe standards used in Europe often refer to IEC60050 for … [Read more...] about What are Motor Control Centres?
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 requirement etc. This article is an introduction to Gas insulated Substations.Gas Insulated Substation (GIS) also called SF6 Gas Insulated Metalclad Switchgear is preferred for 12kV, 36kV, 72.5kV, 145 kV, 245 kV, 420 … [Read more...] about Introduction to Gas Insulated Substations / Switchgears (GIS)
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 term ‘switchgear’ is a generic term encompassing a wide range of products like circuit breakers, switches, switch fuse units, off-load isolators, HRC fuses, contactors, earth leakage circuit breakers (ELCBS), miniature circuit breakers (MCBS), … [Read more...] about Low Voltage Switchgear
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, we will look in to the construction and working of Fuse and the properties of fuse material. With the exception of resettable fuses, a fuse must be discarded and replaced after it has fulfilled its function. When high current … [Read more...] about What is a FUSE and How it Works?