What is mean by vector group? For what purposes we doing vector group test in transformers?

2 Answers  

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specify the inbuilt protections in DG

0 Answers  

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How can i check a relay good or not?

2 Answers  

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HOW COULD A SINGLE PHASE INDUCTION MOTOR ROTATE IN OPPOSITE DIRECTION???

3 Answers  

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How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

1 Answers   S V Sugar,

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what is the difference beteen differential protection and over current protection of an alternator

2 Answers   GVK,

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How much load can be taken for chiller from 1500 kva transformer

0 Answers  

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i have dry type transformers can you help me that how many tests i can do to know the performence of transformer and also please tell me about the BDV test and Insulation resistance test in oil cooled transformers

4 Answers   Hyundai,

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Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

2 Answers   Sun Pharma,

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how determine base of given number like 302/20=12.1

2 Answers  

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what is megar healthy value for ht &lt cables

2 Answers  

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what purpose to use excaiter in DG.?

0 Answers   TATA,

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