HOW many type of Circut Breaker in the world used in 400 kv
substation?
Answer Posted / suni
SF6 Vaccum circuit Breaker is used for 400KV substation
and above
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if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit
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