Answer / s.k.

For power TR's : 15,20,30,45,75 MVA , they have 21 taps
then the 2dry wdg. should meets the required kV
so , when the tap at the lower step( tap 1), it results the
lower kV at 2dry.

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working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

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what is differance between PT-100 and thermocouple?

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why excitor coil of an alternator can fail

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A 6-pole, 50 Hz, 3-phase synchronous motor and on 8-pole, 50 Hz, 3-phase slip-ring induction motor are mechanically coupled and operate on the same 3-phase, 50 Hz supply. If they are left open-circuited, then the frequency of the voltage produced across any two slip rings would be

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what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

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what is meant by excitation which supply is used whether ac r dc in the lab applications

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why surge suppressor in vaccum circuit breaker and it is only in motor feeder why not in tranformer feeder?no surge suppresor in ocb in motor feeder?

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