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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 / raj
Nothing harm in placing the breaker beffore 1km distance,
but the system will suffer with the following disadvantages.
1) One KM long cable protection has to be taken care which
will cost heavily.
2) local supply providing authorities may object, since
this kind of arrangement is not allowed as per ie rules.
3)Running the pilot wires for the protection signal
sampling and the control wiring of the breaker will become
a tedious job.
4)Proper and cautious co-ordination is required in the
operation and maintenance point of view before every
operation.
| Is This Answer Correct ? | 14 Yes | 2 No |
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