Explosion-proof electric actuator is currently one of the first choices for power source control of many industrial automation pipelines. It has a fast transmission signal and a long distance transmission. It can centrally control the opening and closing of valves. It is very convenient for current pipeline installation and Wiring is one of the products currently used by many enterprises.
The circuit design of explosion-proof electric actuators plays a very important role in this product. This is mainly because the valve actuator is the driving device of the valve, which can control the forward and reverse rotation of the valve, or the opening and closing state. Therefore, the first problem when designing a circuit is to consider the power performance of its motor.
In addition, the torque of the valve is basically maintained between 1-30000m, and some non-standard valves on the market are not included here, so the motor can be selected between 0.25kw and 15KW. It is necessary to pay attention to the motor below 3kw It is possible to use a contactor and a thyristor to control it, and the control contactor must be used for control above 3kw.
Maintenance points of explosion-proof electric valve
In addition, the circuit design of explosion-proof electric actuators needs to be designed on the spot. For example, if the valve is opened and closed frequently, thyristors must be designed. This is mainly because thyristors can be used infinitely and can effectively increase the electric shock Life.
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