Answer / prakasa rao

lightning arestor connected to phase to neutral not line to line.

what is the purpose for open delta connection in potential transformer

2 Answers  

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how to calculate overall efficiency of diesel generator set? give us a formula with an example.

2 Answers  

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what is the significance of tan delta testing?explain the theory?

7 Answers  

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If the characteristic Impedance is equal to load Impedance then…… a) voltage will be increased b) power transmission is zero c) …… d) max. power is transmission to load

2 Answers  

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We have energy meter of ct ratio 200/5amp and installed cut having ct ratio 100/5 amp what is final MF?

2 Answers  

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What causal system?

1 Answers   NTPC,

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what is the formulae for calculating the cable size for a given voltage and current.

4 Answers   Bharat Forge,

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How can we measure MVAR of a 3 phase transformer.....???

1 Answers   JLL, UPPCL,

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Mention the disadvantages of low power factor? How can it be improved?

0 Answers  

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battery spicgravity mesuserd?

1 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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Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

0 Answers   HCL, Reliance,

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