Transformer core grounding treatment:

100kva single phase pole mounted transformer core grounding inspection is generally used to detect the steel clamp pieces and iron core insulation, if measured through the screw insulation resistance is zero, you can determine the grounding point, and then from the top down the gradual investigation. But also useful multimeter power measurement, but need to do security measures, and by experienced professionals to operate.
100kva oil transformer assembly and maintenance is the main reason for multi-point grounded core. So in the maintenance must be folded silicon steel sheet, need to be crushed when the insulation can not be crushed between the stack to keep the laminated clean, metal powder can not stay on the disc, the prominent silicon steel hammer to use flat, leak Magnetic processing to be painted, some pads and insulation washer must be replaced when crushed, loose should be fastened. Grounding plate and core to overlap firmly, do not touch other silicon steel. If you find the phenomenon of touch the core, to install the insulation board and fixed. When the bottom of the tank dirt and sludge is completed, the transformer insulation drying, the transformer after the power transformer repair inspection and observation to confirm the sound normal, all components connected well, there is no prominent phenomenon can be loaded into the fuel tank.