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What are the malfunctions caused by improper circuit breaker selection?
2018/9/14 Wenzhou Shanghe Imp. & Exp. Co., Ltd.730
Many people will not choose a circuit breaker, do not know what is suitable for their own, do not know how much current suitable for their own home circuit breaker, random choice leads to unnecessary losses, today we look at the improper selection will have what performance, so that you can avoid hurting Ha!
Improper type selection will make the performance can not meet the operating conditions of the use site requirements. Plastic case circuit breakers do have more comprehensive functions, but these functions are not all types of products, some circuit breakers for cut-off, no-load transmission lines, it does not occur re-breakdown, so in the operation process will not cause more than High overvoltage, intelligent low voltage circuit breakers may not be competent for another function; some circuit breakers have strong arc-extinguishing performance when large current is interrupted, but the phenomenon of current interception when small inductance current is interrupted, such as some vacuum circuit breakers, is often damaged when high voltage motor is interrupted, which is not so The insulation of the motor is not good, but because of the overvoltage caused by the current cut-off when the circuit breaker is disconnected. Some isolation circuit breakers do not have the function of out-of-step and breaking. They are used at the junction of the generator outlet and the power grid. When the power grid is disconnected and running, the circuit breaker will occur reverse phase breakdown.
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