Motor energy-saving rectification overheating delay protection self-locking device
A technology for energy-saving and time-delay protection of motors, applied in emergency protection circuit devices, motor control, electrical components, etc., can solve problems such as misoperation, economic loss, damage, etc., achieve stable voltage and current, ensure normal operation, and circuit structure simple effect
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[0018] Such as figure 1 As shown, the motor energy-saving rectification overheating delay protection self-locking device of the present invention includes start button QA1, stop button TA1, fuses RT1, RT2, AC contactor CJ1, thermal relay RJ1, intermediate relay ZJ1, time relay SJ1, motor M1 , bridge rectifier T1, capacitor C1, indicators XHD1, XHD2, where:
[0019] The coil of AC contactor CJ1 is CJ1.1, the main contact is CJ1.2, the normally open contact is CJ1.3, and the normally closed contact is CJ1.4;
[0020] The coil of the thermal relay RJ1 is RJ1.1, and the normally open contact is RJ1.2;
[0021] The coil of the intermediate relay ZJ1 is ZJ1.1, the normally closed contact is ZJ1.2, and the normally open contact is ZJ1.3;
[0022] The coil of time relay SJ1 is SJ1.1, and the delay closing contact is SJ1.2;
[0023] The structure of the control circuit is:
[0024] One end of the fuse RT1 is connected to the live wire terminal L of the control circuit power supply,...
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