Question { 37509 }

What will Happened if the polarity of CT is changed?

Answer

sorry jk i mean torque produced in the reverse direction
i.e. needle is in left position and it still tries to move
to left position.

Question { 3426 }

Why we are checking the vector group & turn ratio of
Xformer while PM?

Answer

we don't check these things during pm. it is done during
commissioning time only

Question { Cushman Wakefield, 11683 }

How to protect the water pump by no load running.

Answer

by using level transmitter. and use it in plc to switch off
the pump when level remains 20 %.

Question { 36087 }

What is meant by inverse definite mean time (IDMT)&
definitemean time (DMT)?

Answer

idmt means inverse definite minimum time. so in this type of
relay as the value of operand that is current increase time
taken by the relay to operate decrease. higher the current
lower is the time taken by the relay to operate. AND dmt
definite minimum time (DMT) relay take its minimum time to
operate regardless of the value of the current.

Question { 5520 }

what is resistance?

Answer

it is the opposition that is offer to any thing. e.g
opposition offered by wind to vehicle.