Core of transformer core grounding point
2016/11/13 view:
(1) Separately set an iron yoke clip grounding lead. Because if the core occurs on the clip caused by multi-point ground fault, the ground current is only within the core clip pieces of internal flow, the core ground lead no current flows through the lead, the staff mistakenly believe that the core does not malfunction; After setting, no matter where the core touches the clip position will be formed by two grounded outer lead loop, so that the external can also be correctly detected ground current.
(2) core ground piece placed in the middle of the iron yoke cross-section position. This place, regardless of the location of the iron yoke with insulation bolts and where the location of the fault ground, the circuit's maximum induced voltage is only turn the voltage of 1/4, then the maximum ground current is only a few amps or so, The ground plate is much smaller when placed in other positions.
(3) If you really need to install the core grounding plate in other places because of the inconvenience of on-site installation, you should also place the insulation bolts and grounding plates of the iron yoke with diagonally. This will prevent the generation of large current.
(2) core ground piece placed in the middle of the iron yoke cross-section position. This place, regardless of the location of the iron yoke with insulation bolts and where the location of the fault ground, the circuit's maximum induced voltage is only turn the voltage of 1/4, then the maximum ground current is only a few amps or so, The ground plate is much smaller when placed in other positions.
(3) If you really need to install the core grounding plate in other places because of the inconvenience of on-site installation, you should also place the insulation bolts and grounding plates of the iron yoke with diagonally. This will prevent the generation of large current.
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