how to calculate P.F from kva only?

3 Answers  

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What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

0 Answers   Shasun Chemicals,

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Inductor and capacitor........power in one phase and ...... in it another phase.

0 Answers  

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What is UJT PNP, NPN transistor & working principles?

1 Answers   TATA,

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WHAT IS IEC? & WHAT IS BENEFIT TO PRODUCT FROM IEC?

0 Answers   BMC,

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how external lighting design? please give examples?

0 Answers  

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State angle criterion.

0 Answers  

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what is the working of air compressor.

5 Answers  

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We have .ht motor which is 60Hz.we run on 50Hz.so that it's speed reduce but we had one prob.that motor winding temp increase up to 135 deg.we want reduce this temp.what to do?we arrange ext.cooling fan but not much effect.we want reduce this temp. Inhouse without affecting much.cost. also don't want reWINDING OF MOTOR?

3 Answers  

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what is the type of pilot wire in pilot relay?

1 Answers  

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RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?

0 Answers  

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what is the transformer efficiency?

5 Answers  

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