Answer / ajay

what is the condation of check YNd11 vector group test

Answer / umesh

Vector group is dittermind difination of transformer primery and secondry winding

what is the effect of leading power factor

3 Answers   Aurobindo, R L Steels and Energy,

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I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.

2 Answers  

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why shoud in High tension cable( above11KV etc.,)a semiconducting material coating will be there on insulation?

1 Answers  

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In tranformer winding Connection Like Dyn1 ,so LV lags Hv by 30 deg and Dyn11 LV lead HV by 30,so how do this lagging and leading afffect the transformer??

2 Answers   Siemens,

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(1) From the following option, which option is correct for largest size transformer.? a)1KVA,25Hz , b)1KVA,50HZ , c)1KVA,60Hz , d)1KVA,100Hz

5 Answers   Torrent Power,

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What is CBCT ? Why & Where it is used?

14 Answers   BCT,

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Is it possible Z axis excess error alarm reflect in X axis if yes explain ?

0 Answers  

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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

0 Answers   OPS,

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Can any horizontally mounted motor be used as vertical?

5 Answers  

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what is the difference between kva and kw ?

5 Answers   TCS,

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Why iron core losses are constant at all loads in a transformer ?

1 Answers   GATE,

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Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?

0 Answers  

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