Intelligent circuit breakers begin to face market development

Intelligent circuit breakers begin to face market development Circuit breakers can be based on the size of the current, the protection of the power lines and electric motors, and other types of technical equipment, the development of science and technology also promote its ultimate integration of intelligent technology, intelligent circuit breakers have begun to face market development.

Circuit breakers can be used to distribute electrical energy. Asynchronous motors are activated infrequently to protect power lines and motors. When they are severely overloaded or short-circuited or under-voltage faults, the circuit can be shut off automatically. Its function is equivalent to a fuse switch. In combination with over-heat relays.

At present, circuit breaker equipment has been widely used in the development and construction of power systems. Now with the rise of smart grid construction, the technical level of supporting equipment has also put forward higher requirements. Intelligent distribution of intelligence, and the technological development of circuit breaker products have become increasingly intelligent.

Smart circuit breakers use microelectronics, computer technology and new sensors to create new circuit breaker secondary systems. Its main characteristic is that the power electronic technology and digital control device constitute the execution unit, which replaces the auxiliary switch and auxiliary relay of the conventional mechanical structure. The new sensor cooperates with the digital control device and collects the operation data independently, which can detect the defects and faults of the equipment and send an alarm signal before the defect becomes fault, so that measures can be taken to avoid the accident. The intelligent circuit breaker realizes the electronic operation, and the variable mechanical energy storage is the capacitor energy storage. The variable mechanical transmission is the direct drive of the frequency converter via the motor, and the reliability of the mechanical system is improved.

Smart circuit breakers are used to control and protect low voltage distribution networks. Intelligent circuit breakers are generally installed in the low-voltage distribution DW45 universal circuit breaker cabinet as the main switch for total protection. The technical performance of DW45 universal circuit breaker has reached the international advanced level of the same type of product.

The operation process of the intelligent operation circuit breaker is: when the system fault is triggered by the relay protection device or the operator sends an operation signal, the intelligent identification module is first started to work, the current working condition of the circuit breaker is judged, and the adjustment device is Different quantitative control information is issued and the parameters of the operating mechanism are automatically adjusted to obtain the motion characteristics that are compatible with the current system operating status, and then the circuit breaker is actuated.

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