what is two wattmeter test

2 Answers   Jindal,

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What is the efficiency during maximum power transfer?

0 Answers  

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if i am in front of transmission line how to know that current direction without any equipment

0 Answers  

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in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

0 Answers  

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What happens if the secondary of the transformer is shorted?

2 Answers  

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How will polarity test of Dy5 Transformer ?

0 Answers  

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why low pressure side of the turbine is connected to the alternator and not the high pressure side??

1 Answers  

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3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

3 Answers  

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When we change the tap position of 10MVA transformer it suddenly tripped with Out of step indication and also with Static differential relay indication, Transformer Bucholz relay indn and Low oil level indication. Before 1 week the same problem occured by changing the tap position. but at that time only oltc bucholz relay activated. After testing the TxR Relay team & PET team cant find any solid reason. The values are ok also. So plz answer wat's the reason for this incident? anybody plz help.

3 Answers  

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What is the name of process In VFD frequency are increase then voltage increase & frequency decrease then voltage decrease?

0 Answers  

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what is diffrence between neutral and earth wire

23 Answers   Bhel, Esab, MTNL,

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What are the consequences in using existing step up transformer (primary 6.6kv/175A, secondary 480v/2405A) for step down transformer to have a 6.6kv output?

1 Answers  

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