Answer / anil singh

ps class is used for protection in diff protection while
5p10,5p15'5p20 is used for protection

for a 132/33kv transformer secondary is star and is connected to NER. and from secondary a cable is running to 33kv swbd. since the cable is single core do i have to run neutral cable also to 33kv swbd.???

5 Answers   PowerTech,

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Why we does earthing for transformer neutral point

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