Nader Circuit Breaker

In the renovation of residential hydropower, many people are used to choosing copper core wires with a larger square for safe use of electricity. Not only does the line selection have a large square number, but even the air switch chooses a large number of safety! There is nothing wrong with selectin...

We often see electric bus switches for rural households including air switches and knife switches. Knife switches are not common in urban households, but they are still very common in rural households. However, in recent years, knife switches have gradually decreased and gradually replaced by air swi...

Shunt release is an accessory for remote control of opening. The shunt release is essentially an opening coil plus a release. Thermal trip and electromagnetic trip also use this trip unit. Apply a specified voltage to the shunt trip coil, and the circuit breaker will trip and open. Shunt releases are...

Selection principle of low-voltage circuit breaker: 1) Determine the type and protection form of the circuit breaker according to the protection requirements of the line-determine the choice of frame type, device type or current limiting type. 2) The rated voltage UN of the circuit breaker should be ...

The principle of leakage switch tripping: There is a zero-sequence current transformer in the leakage switch. This transformer has a small number of turns on the primary side and a large number of turns on the secondary side. The power line (single-phase is generally live and neutral, and three-phase...