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What is the harm if we install primary side 11 KV VCB at a
distance of one Km from the 11/3.3KV 12.5 MVA transformer
through 11 KV cable.
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Answer Posted / darklord
No immediate harm ,but during maintenance this 11kv line
between VCB and transformer need to be discharged with out fail,
Also during switching action their would be switching surge
created due to oscillating of wave between vcb and
transformer which will heat and may damage insulation of
transformer.
Their would also be control voltage drop for 1000mtr wire
which will have significant effect on protection of transformer.
but proper control strategies will sort this problem
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