During
the insulation co-ordination in the sub station, the lowest insulation strength
is at
CTs
and PTs
transformer
circuit
breaker
busbar
transformer
Insulation
coordination is the process of knowing the insulation level of the power system
component. In other words, it is the process of determining the insulation
strength of the equipment.
Line diagram of substation :
During
the insulation co-ordination in the sub station, the lowest insulation strength
is at transformer.
Hence,
the correct option is (B).
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