2024-05-31
Some high-voltage solid-state soft start cabinets use vacuum contactors or vacuum circuit breakers, which are important primary components of high-voltage solid-state soft start cabinets.
Vacuum circuit breakers have sufficient breaking capacity. In the event of high grid voltage and high fault current,
When the circuit breaker is disconnecting the circuit, it must have strong arc extinguishing ability to reliably disconnect the circuit and ensure sufficient thermal and dynamic stability.
So how should we test the functionality of a hand operated circuit breaker when it is first installed? Soft starter manufacturer Axwell will learn with you today.
1、 Use the energy storage handle to store energy in the energy storage device and check the energy storage status indicator.
2、 Manually open and close the circuit breaker several times and check the position indicator.
3、 Use the handcart handle to move the handcart circuit breaker to its working position and isolation position. Check the mechanical interlocking between the vacuum circuit breaker and the switchgear, and check the position indicator.
4、 Check the electrical function of the control and operating devices, and use auxiliary power supply.
5、 Drive the coil to perform opening and closing operations and check its function/interlocking. Check the position indicator.
6、 Shake in and out the circuit breaker. At the same time, check the position indicators, interlocks, and other related devices in the circuit breaker
