Three-core power line disconnection protector
A technology for power cords and protectors, applied in the direction of automatic disconnection emergency protection devices, emergency protection circuit devices, electrical components, etc., can solve problems such as damage to household appliances, fire, ignition of flammable items, etc. stability, the effect of circuit voltage stability
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[0022] Such as figure 1 , figure 2 As shown, the disconnection protector for the three-core power cord includes a pre-circuit 5, a three-core power cord 4 and a rear circuit 6, the pre-circuit 5 is located at the power input end of the three-core power cord 4, and the The rear circuit 6 is located at the power output end of the three-core power cord; the three cables of the three-core power cord 4 are respectively the first cable 41, the second cable 42, and the third cable 43; the front circuit 5 includes a key switch 3, a relay JK1, a diode D1, and a diode D2; the key switch 3 is connected in series on the first cable 41, and the two ends of the normally open contact of the relay JK1 are connected in parallel with the key switch 3; the key switch 3 One end is connected to the power supply, the other end of the key switch 3 is connected to the negative pole of the diode D1, the positive pole of the diode D1 is connected to the positive pole of the diode D2 and the control t...
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