Question

T1 59KV Bus 14.2KV Bus G1 Load X = 10% at 100MVA 59KV-8.2/14.2KV 10MVA X = 9%

Assume an X/R ratio of of 20 on the 59KV system and a maximum fault current If of 4.06K Amps.

Will a link that rates 9000 Amps symmetrical and 13600 Amps asymmetrical be sufficient to protect the 59-14.2KV transformer station? Show work to support the claim.

Answer 1

Sakv 소O-09 4060 Amp Given 7000の Since,IIq(mp)く 13,600

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