Overview:
The permanent magnet circuit breaker adopts a bistable permanent magnet mechanism with an undervoltage release built in, and is integrated with the mechanical manual release to make manual opening easy and reliable.
The combination of permanent magnet mechanism opening and spring opening makes the distribution of opening speed more ideal. Compared with the spring operating mechanism circuit breaker, the movable parts are greatly reduced, so that its reliability and mechanical life are greatly improved, and it is an ideal substitute product for the spring operating mechanism type circuit breaker.
Technical Characteristics of Permanent Magnet Mechanism Circuit Breaker:
1. Equipped with a permanent magnet operating mechanism with unique technology, the operating energy of the mechanism is small, and there is no hidden danger of degaussing.
2. Simple mechanical transmission makes it possible for the mechanism to be maintenance-free.
3. Advanced control technology, up to 100,000 times of mechanical life, no need to replace the vacuum interrupter, especially suitable for frequent operations.
4. Applicable to various operating voltages, the system does not need special production; the DC screen does not need to provide large current.
5. Equipped with a lightweight manual release device. Small operating power and energy saving.
6. Electronic components have strong anti-interference ability.
7. Accurate opening and closing time.
8. Years of operation experience, frequent operation and good condition.
In 2008, the Country's transformation of urban and rural distribution networks is further deepening, and the power sector has also changed from a simple industry management to an enterprise serving users.
Therefore, not only the quality and performance requirements of equipment are getting higher and higher, but at the same time, more and more attention is paid to investment and available benefits. The emergence of a new generation of permanent magnet mechanism vacuum circuit breakers will provide a new choice for the majority of users.
The Difference Between Ordinary and Permanent Magnet：
To be able to operate, the circuit breaker must have a power source, that is, the operating mechanism. The operating mechanism can be understood as a component in the circuit breaker. We usually say that vacuum circuit breakers generally use a spring operating mechanism, and the operation of this circuit breaker is pulled by a spring.
In recent years, there has been an operating mechanism that uses the magnetic force of a magnet to operate a circuit breaker, referred to as a permanent magnet mechanism. The permanent magnet vacuum circuit breaker refers to this. The operating mechanism of the circuit breaker is a permanent magnet mechanism, not a spring mechanism.
Spring mechanism: The contact of the arc extinguishing chamber is driven by the tension of the spring, and the energy of the spring is generally supplied by the motor. In this mechanism, there are generally closing springs and opening springs.
Permanent magnet mechanism: The contact movement of the arc extinguishing chamber is driven by the magnetic force of the magnet, which is divided into monostable permanent magnet mechanism and bistable permanent magnet mechanism.
