Answer / mrudang

in HV CT the secondary voltage should be around Vk>400v

because in differential protection , we have to maintain
relay input of 1 Amp or 5 Amp

What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.

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What should be distance required in between two phase of HT cionductors in open area??????

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Why the magneti fields are not passes from southpole to north pole

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What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

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why rating of alternator in kva & induction motor in kw

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what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes

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why only dc is given as excitation...why not ac???

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if one of the phase is failed to 3 phase IM. what will happen?

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can u give me a brief idea about power line carrier communication ??

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What are the application of Under voltage release?

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what is the principle of operation of CFL ??

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what is the procedure for three phase motor differential relay testing can it do with single phase test kit?

1 Answers   ABB,

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