how much Watt can we fully load a transformer

4 Answers  

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What is the formula of frequency ?

0 Answers  

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we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain

0 Answers   TNEB Tamil Nadu Electricity Board,

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why bucholtz relay placed inclined in transformer?

1 Answers  

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what is the purpose of %impedance for transformer

3 Answers  

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what is the difference between thyristor & IGBT?

2 Answers  

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is the value of inductance depends upon the value of thitha in doubly excited machine??

0 Answers  

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Give some differences between open loop and closed loop control systems.

0 Answers   GE,

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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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how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.

5 Answers  

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why exciter frequency 150 Hz ?

1 Answers   Siemens,

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1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

0 Answers  

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