Answer Posted / suresh

no standerd farmulla to calculate the noload current but as
a thumbrule 3 ph induction motor will draw 30% current on
no load but few motor will take 50 to 60 % current

What is transformation ratio what it describes?

1169

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How do we find the rating of a transformer, if it got burnt badly.

1060

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What is the settings of distance protection relay in 400 kv line

1186

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How to determine stage of Automatic Power factor controlling Relay(Apfcr)?

1693

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Difference between earthing & grounding.?

1584

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What is meant by harmonic distortion?

669

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y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1528

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What are the advantages of thermal power plant?

680

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I'm looking for a mnaual set for a Teradyne J750. Softcopy would be preferred but I'll take what I can get.

1749

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What is synchro?

656

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stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

2191

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In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

1304

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how to calculate mf when meter and cTPT detail are given

1361

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In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

1429

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Single line diagram for dbb (double bus bar)system.

1468

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