Routine maintenance of circuit breakers

Promulgator : TAIXIDate : 2018-10-05Views : 24

In order to make the circuit breaker operate more freely, we should not neglect its maintenance. If you maintain it frequently, its life will be many times longer. Why not? For its good working condition, maintenance and maintenance of China circuit Breaker need to be constantly strengthened. Then, what are the main points of its maintenance?

First of all, in maintenance, we should keep the air fresh, if it is wet air, or not clean, it caused serious consequences. Wet gases break down into hydrogen and oxygen mixtures, which can result in fracture insulation between contact points and, in severe cases, arc chamber of China circuit Breaker explosions. It will make the insulation strength lower, the surface will gradually produce discharge, so you can not touch, in case of electric shock, the consequences can be imagined, so it is better to be careful. In addition, the pipe will be blocked when painting, and the circuit will fail or even die. Therefore, we should always keep the air clean.

Rubber fittings are one of the most important, should be regularly replaced rubber fittings, because the structure of this device is very complex, sealing performance requirements, in order to ensure its performance to keep up with the timely replacement of rubber fittings is necessary.

The components of the lv circuit breaker need to be checked regularly, so that they are in a good technical condition, do not ignore a small device, perhaps it determines the normal operation of the device. For example, the arc extinguishing chamber needs to check its spring regularly, the dynamic and static contact point, because it constantly occurs friction, so the point out of the stroke, pressure will slowly reduce, when small to a certain belt, will make the spring deformation, then timely replacement. The non-linear resistance needs to be checked for cleanliness, the desiccant inside is replaced, and the non-linear chip resistance is measured. The main valve checks the size of the piston and valve body to see if its size is within the prescribed range if it does not meet the need for timely correction. Driving cylinder is also required to check, adjust its buffer, ensure its disconnector, and timely check its accuracy, but also through maintenance and replacement to make its performance better.

For the daily maintenance of China circuit Breaker, we only need to do a few points above, I believe there will be no small effect. It is very important to make sure that the air in the environment is fresh, to replace the rubber parts in time, to check the small parts and so on. It only takes you a little time, it will help reduce the trouble of the device. Maintenance of the device needs to start from the small things in life, which can not be ignored.

In the future, the development of low voltage electrical appliances in China shows the following trend:

1. Intelligent low voltage electrical products. Electronic computer monitoring system has been widely used in modern power plants and industrial and mining enterprises. High performance and intelligent requirements for lv circuit breaker are put forward, and products are required to have the functions of protection, monitoring, testing, self-diagnosis and display.

2. Electronic products. In modern enterprises, the use of PC control system to replace the system composed of electrical and mechanical components has become the mainstream of mechanical and electrical control systems. The system requires electrical products to have high reliability and anti-interference. It also requires contacts to be able to reliably switch on low voltage and weak current. When contacts are disconnected, the arc can not interfere with the normal operation of electronic circuits.

3. Combination and modularization. It is the development direction of lv circuit breaker industry to combine modules with different functions according to different requirements. Adding auxiliary contact components, delay components, self-locking components, interface components, mechanical interlocking components and surge voltage components on the contactor body can meet the requirements of different occasions, thus expanding the scope of product application, simplifying the production process and facilitating user installation, use and maintenance. At the same time, it will further improve product reliability and product quality.