Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor

Abstract

The invention relates to an automatic timing alternative positive and reverse rotation dual-interlocking control line for a motor and belongs to the field of electrical control. A control loop mainly comprises a button switch SB1, a button switch SB2, a relay KM3, a contactor KM1, a contactor KM2, an electrification delay time relay KT1 and an electrification delay time relay KT2. Intrinsic normally open contacts and normally closed contacts in the electrification delay time relays and respective auxiliary normally closed contacts of the contactor KM1 and the contactor KM2 are combined and then respectively serially connected into respective branches of coils of the contactor KM1 and the contactor KM2 to form a dual-interlocking circuit. Short circuit of a main control loop of the motor during operation and automatic switching of positive and reverse rotation of the control loop of the motor can be effectively prevented, and positive and reverse rotation time of the motor is adjustable. In addition, the circuit structure is simple and operation is convenient.

Description

technical field [0001] The invention relates to a timing automatic alternation forward and reverse double interlocking control circuit of a motor, which belongs to the field of electric control. According to the circuit, a simple control box can be made to control the automatic switching operation of the forward and reverse timing of the motor. Background technique [0002] In the current field of electrical control, there are many ways to control the operation of electric motors. Most of them are for commercial considerations. Most of them contain computers and the cost is high, which is not conducive to the on-site operation and maintenance of most ordinary workers. The control of reverse timing operation requires many applications, but its products are few; the training content of each electrical control circuit for students majoring in electricity in universities is too simple, and the knowledge learned by students has not been effectively, continuously and comprehensivel...

AI Technical Summary

Problems solved by technology

[0002] In the current field of electrical control, there are many ways to control the operation of electric motors. Most of them are for commercial considerations. Most of them contain computers and the cost is high, which is not conducive to the on-site operation and maintenance of most ordinary workers. The control of reverse timing operation requires many applications, but its products are few; the training content of each electrical control circuit for students majoring in electricity in universities is too simple, and the knowledge learned by students has not been effectively, continuously and comprehensively integrated. Consolidate and expand practical application

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