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Answer Posted / viral
I will like to add one more reason, in case the earthing
opens between panel and ground then the fault tend to
divert directly to PLC panel. This in return will blow off
cards in PLC. Thus the earthing is kept different.
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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
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