Why we choose 50hz ac frequency in China?
Why should our motor choose 50HZ AC? The 50 Hz alternating current is used for the motor in China, but due to various reasons, the alternating current used…
How to choose the busbar size when installing the power electrical cabinet?
How to choose the busbar size when installing the power electrical cabinet? 1. Selection of Main busbar At present, the main busbar specifications of most electrical engineering projects are…
How to design electrical diagram?
The electrical control principle circuit design is the core content of principle design, through which various design indicators are realized, it is also the basis of process design…
How does the leakage circuit breaker working?
How does the leakage circuit breaker working? 1: the lower port of the leakage circuit breaker should be correctly connected to the live line and the neutral line. For…
What is the breaking capacity of circuit break?Is it the bigger the better?
What is the breaking capacity of circuit break? We should choose the right MCCB and circuit breaker hen configuring the electrical switchgear or electrical switchboard. The breaking…
Main switchboard parts and functions
Electrical switchboard is a electrical panel,it is composed of main circuit breaker,Curent transformer,relay,isolators, voltmeter,busbar ,switch disconnect devices. The functions of switchboard The rated current of the low voltage Switchboard…