Protection measures are an indispensable part of automatic control systems.Three-phase asynchronous motorThe use of reasonable protective measures can ensure the long-term normal operation of the motor, can avoid damage caused by some failures, and ensure personal safety; So today, Senli Motor Xiaobian will take you to understand what protection measures the next motor has!

       In a normal production operation,Three-phase asynchronous motorCommon protection measures are short circuit protection, under voltage protection, loss of voltage protection, overload protection and overcurrent protection, these protection measures are also well understood according to the literal meaning; Here's a quick look at what these protections mean.

       Short circuit protection is to cut off the circuit through automatic fusing when the circuit occurs or serious overload, so as to achieve the purpose of protecting the motor;

       Undervoltage protectionWhen the power grid is low voltage, because the load of the three-phase asynchronous motor has not changed, it is easy to cause torque decline and the stator winding current increase, which will affect the normal operation of the motor or even damage the motor, at this time, undervoltage protection is needed to cut off the power supply;

       No-voltage protectionWhen the equipment is working normally, a sudden power failure of the power grid occurs for some reasons, and when the power supply is restored again, in order to ensure that the machinery is in operation after restarting, it is also called zero voltage protection;

       Overload protectionIs in the three-phase asynchronous motor load is too large, start frequently or lack of phase operation, the working current time exceeds the current, using a measure to protect the electrical appliance cut off the power supply;

       Overcurrent protectionIt is to limit the starting current or braking current of the motor, which can make the motor run under a safe current value without causing damage to the motor and equipment. When the current of the motor reaches the action value of the current relay, the normally closed contact will disconnect the control circuit and make the motor stop from the power supply.

       Shengzhou Senli Motor,Three-phase asynchronous motor manufacturers,3KWAnd the following small power motor manufacturers, support can be providedOEM/ODMCustomization, specification customization, appearance customization, special shaft customization and color customization. We provide customers with fast proofing services, complete quality inspection reports, in case of technical problems, technicians24We'll be there within the hour.

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