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| The main function of soft starter |
| 1, overload protection function: soft starter introduced the current control loop, and thus at any time to track the changes in the motor current. The overload protection function is realized by increasing the setting of the overload current and the inverse time control mode, which makes the motor overload, and the thyristor and the alarm signal.
2, lack phase protection: work, soft starter readily detect changes in the three phase current, once the occurrence of drying, can make phase lack protection reaction.
3, thermal protection function: through the soft starter internal thermal relay detection of the temperature of the thyristor heat sink, once the radiator temperature exceeds the allowable value, automatically shut off the thyristor, and issued a warning signal.
4, a measurement circuit parameter functions: motor, soft starter in the detector had been watching motor running state and to monitor the parameters are sent to the CPU for processing, the CPU will monitor the parameters analysis, storage and display. Therefore, the motor soft starter has the function of measuring the parameters of the circuit.
5, other functions: through the combination of electronic circuits, but also in the system to achieve a variety of interlocking protection. | | | author: Published at: 2014/9/24 16:09:45 |  |
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