Answer / sriman

Isolators are mainly for switching purpose under normal
conditions they cannot operation in fault
conditions.Actually used for isolating the CBs for
maintanence.
Where as CB gets activated under fault conditions according
to the fault detected.
Bus bar is nothing but a junction where the power is
getting distributed for independent loads.In single word it
is One to Many.

what is the harmonics? which harmonics(fundamental and reference) is suitable for calculating capacitor bank and Active filter and passive filter? what is the 1st 2nd 3rd 4th 5th harmonics and effects?

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hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

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why sec of ct should be kept shorted

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