How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?

1 Answers  

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we have 3*1 MW generator one NGR is common for all it will be selected during paralle our problem is two generator ca be paralled but when slecting third one we need to close NGR selection on third one other wise voltage not matching why?

1 Answers  

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what is Diversity factor in electrical installations

3 Answers  

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What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers  

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If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

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In pakistan appliances work on 220v at 50hz and in us appliances work on 110v at 60hz what is basic theory to explain it

1 Answers   SNGPL,

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How can we explain that what is the power factor?

5 Answers  

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WHY CAN WE NOT CHAGE SPEED OF SYNCHRONOUS MOTOR...............................JUSTIFY

2 Answers   ISMT,

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what happen when increase or decrease size of lamp,light.glass.

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explain the transient reactance

1 Answers  

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why tertiary winding is used in transformer with diagram?

0 Answers  

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in communication what is the role of elelctrical engineer?

3 Answers   Quippo, Reliance,

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