What is the formula to calculate the rating of a three
phase trnasformer

Answer Posted / joy banerjee (joysbag@gmail.co

The transformer rating in KVA can be calculated by:

KVA = 1.732xVxI

where

- V is the system Voltage in KV
- I is Current (Amps)

Is This Answer Correct ?    4 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

2540


How to work E.L.C.B and how to connect in circuit.

1523


what is JE exam?

1692


1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1276


If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?

1490






please send me previous year questions of jspl through which i could prepare myself for the test.

1368


WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

4266


what are symmetrical and non symmetrical components in electrical installation.

1604


hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

1474


WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1559


Discribe type of fault in DOL and stardelta startor.

1803


we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1486


WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1338


What is the simplest formula to calculate the rotor diameter of a synchronous generator?

1904


which capacity of RCCB used for five thousand watt electricity load?

1340