Answer Posted / joe callaghan

Transformer vector relationship is tested by shorting the
primary A phase to secondary A phase, then applyying a
three phase voltage to the primary side of the transformer.
Voltage measurements are then taken as follows:

A-B
B-C
C-A
B-b
C-b
B-c
C-c

These values will then allow you to draw the vector diagram
of the transformer.

what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

3045

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For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

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what id a dry type transformers and its function ?

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If you have an earth with pilecap then your resistance is really low. why and how?

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What is the safety of UPS?

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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

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hi, could someone help me to find a control design for syncronising panel .

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What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

1699

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Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

1609

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We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

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How does a television work?

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explain wiring system

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i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

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What is a diode?

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Q: How to calculate Transformer losses , tell us by Formula.

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