In the rapid development of modern economy, electric power enterprises provide electric support for various production and life, and electric motor is the basic equipment in electric power system, which occupies an important position in electric energy. The society's demand for electricity is increasing, making the optimization of electric motors and the realization of intelligent control the primary problem to be solved by electrical enterprises.
The traditional motor protection and control is to realize the short circuit protection of the main circuit through the molded case circuit breaker, and realize the basic protection functions such as motor overload through the thermal relay. The background DCS system controls the contactor or intermediate relay of the motor with hard wiring connection, and then samples the analog value of the current transmitter of the motor for simple monitoring. The function is simple, the amount of information is small, the wiring is complicated, and the fault is not easy to troubleshoot.
The motor control and protection system can not only support the independent DCS process control network, but also realize the independent motor intelligent monitoring; it can also effectively protect the motor, eliminate hidden dangers, ensure the safe production of the factory, improve the process precision of the automatic process control and prolong the service life of the equipment.
High protection precision;
More comprehensive protection;
Better adaptability to load;
Accurately indicate faults;
Excellent starting performance.
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