Fault simulation device for relay protection worker
A technology of fault simulation device and relay protection worker, applied in the direction of measuring device, measuring electricity, teaching model, etc., can solve the problems of poor privacy, lack of flexibility in setting fault types, and complicated operation, so as to achieve low cost and improve safety. , the effect of simple operation
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[0010] Such as figure 1 As shown, a relay protection fault simulation device according to the present invention includes a power supply input terminal, a voltage loss protection simulation circuit, a trip simulation circuit and an alarm simulation circuit, the power supply input terminal is connected to a transformer, and the power supply input terminal is connected to a transformer. The output end includes a secondary first coil L1 and a secondary second coil L2, and the secondary first coil L1 and the secondary second coil L2 are connected in series;
[0011] The loss-of-voltage protection analog circuit includes an input end of the loss-of-voltage protection analog circuit and an output end of the loss-of-voltage protection analog circuit. A loss of voltage relay KM1 that controls the on-off of the input voltage and the output voltage is set between the output terminals of the voltage protection analog circuit;
[0012] The tripping simulation circuit includes a tripping s...
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