Low-voltage grounding fault point locator and locating method
A ground fault and low-voltage technology, applied in the fault location, detecting faults according to conductor types, instruments, etc., can solve the problems of abnormal voltage, neutral line, and can not be used normally, so as to shorten the power outage area and power outage time, Improve comprehensive benefits and easy portability
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[0023] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples and accompanying drawings. The examples are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.
[0024] Low-voltage ground fault point finder, including test power supply and insulating rod type wireless clamp ammeter. 230V (unsteady) alternating current and a maximum current capacity of about 10A, output alternating current to the ground to find the fault point.
[0025] Such as figure 1 As shown, the test power supply includes input terminal 6, relay coil (also called contactor coil) 7, test switch 8, current limiting capacitor 9, ammeter 10, relay contact (also called contactor contact) 11, insurance unit 12 And output connection terminal 13, input connection terminal 6 is to get the connection terminal of commercial power from busbar 1, outp...
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