Answer / shariff

It is recommended to use two watt mater method, then W1+W2 will give total power in all the 3 phase, this method can be used for this un-balanced load conditions.

Answer / subbarao

Measure power in all the 3 phases separately and add them.

How much duration I can keep open the CT if it is under loading condition(100 Amp load)?

3 Answers   Infosys, NTPC, Suzlon,

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What would be the ratio of a Delta-Wye tranformer having 48000 volts phase to phase on the primary and 4160 volts phase to phase on the secondary?

5 Answers  

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for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage

4 Answers  

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Which type of material used for fuse wire & solder wire.

13 Answers  

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Explain what is use of lockout relay in ht voltage?

0 Answers  

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what is earth-fault?when it occurs? to check where it occurs what type of test should we do?

0 Answers   ONGC,

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what is residual current....

1 Answers  

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IF DISTANCE IS 100METERS B/W AMP.METER AND CURRENT TRANSFORMER WHAT WILL BE AFFECT IN ACCURACY .METER CAN SHOWING ACCURATE CURRENT OR NOT IF NOT WHAT CAN I DO TO GET 100% ACCURACY.

0 Answers  

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How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?

0 Answers   Panacea,

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Pure inductive ckt takes power from AC when 1. Applied voltage and Current increases 2. applied voltage and current decreses 3. voltage decreases and current decreases please justify

2 Answers  

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will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?

4 Answers  

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why transformer is rated in kva instead of kw?

1 Answers  

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