Switchgear is too complicated to look at the headache? Five minutes to take you to understand the switchgear!
Switchgear refers to a certain programme of primary equipment, secondary equipment assembled into a complete set of power distribution equipment, mainly used for lines, equipment control, protection. Switchgear can be divided into high-voltage switchgear (fixed and trolley) and low-voltage switchgear (fixed and drawer) according to the voltage level of the inlet and outlet lines. The […]
Medium voltage switchgear testing principles (mechanical tests)
Medium voltage switchgear mechanical tests As an integral step in site acceptance tests, mechanical tests are usually done with the functional tests to test proper signalling and interlocks and save time. In mechanical tests, the commissioning engineer performs mechanical switching of the switching devices, charges the circuit-breaker spring manually with the crank, withdraws the switching […]
Common problems in medium voltage switchgear
Electrical switchgear: how it’s got its name? Many years ago power stations used simple disconnectors, open knife switches, to isolate or de-energize equipment. With the continuous increase in power levels, it became no longer safe to open such disconnectors manually and geared switches were a need which is then combined to be “Switchgear”. Switches didn’t […]
Vacuum Circuit Breaker (VCB) – An Introduction to its Principle, Construction, and Operation
A Vacuum Circuit Breaker, or VCB for short, is a specialized type of circuit breaker that utilizes a vacuum as the arc quenching medium. This unique design allows it to offer superior arc quenching properties compared to other types of circuit breakers, such as those using oil or SF6 gas. The principle behind the functioning […]
Functional & Operational Tests For Medium Voltage Circuit Breaker Operating Mechanism Components
Medium voltage circuit breakers play a very important role in medium voltage switchgear( metal clad, metal enclosure,…), and operating mechanism electrical and mechanical components functional tests is one of the most important tests for circuit breakers in panels. In this article, we have tried to talk about these tests briefly and in a list. Functional & […]