What happened if increase resistance between Neutral and Earth

Distribution substation Transformer like Indoor, outdoor and  Pole mounting, Three phase four wire system, Earth is connected in the Neutral and Earth Neutral meet point always Zero resistance. Three phase wires and neutral are brought out for onward distribution to a 
particular area or locality. 
The voltage between any of the three phase wire and neutral should be 230 volts if the  resistance between neutral and earth is zero. In  case the resistance between neutral and earth increase, the voltage across  phase  and  neutral  will also increase  accordingly thereby causing damage to electrical components bulbs etc.To counter this problem, the  joints  of  earth  wire  connecting  star  point  of  star winding and earth should be checked. If the joints, have gone rusty these  should  be  made again. The salt water should be poured into the earth pit  through funnel in the specially made concrete slabs or surface pit so that earth resistance is minimised. 
Best  Neutral  connected  earthing  is  the  3  meter  depth 60 cm x 60 cm x 6.36 mm Copper plate earthing .



TRANSFORMER EARTHING CONNECTED WITH NEUTRAL




Location: United States

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