How to select and set circuit breaker（low voltage）
Classification of circuit breakers – Frame Circuit Breakers (ACB) Frame circuit breaker is also known as universal circuit breaker, all its parts are installed in an insulated metal frame, often […]
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High and low voltage distribution, 100 knowledge
1. What is electricity? Answer:The phenomenon of existence and change of electric charge. Electricity is an important energy source. 2. What is the electric field? Answer: the formation of the […]
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 […]
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 […]
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, […]
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 […]