Answer / spb

i couldn't understand your question boss.... please mention clearly... i have lot of experience in CT & PT....

why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

0 Answers  

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what is the HT motor current setting (Motor protection relay)aganist FLA If the capacitor is connected in parallal to the motor to increase the P.F from 0.89 to 0.99. the setting is to be reduced. what is the formula for to calculate the current.(FLA - CALCULATED CURRENT!= )

1 Answers  

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what is the purpose of interpose t/f in control and relay ckts?

2 Answers  

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In a house wiring why we are using only one neutral wire and so many phase wires from the main board, when the load is common for both wires?

3 Answers  

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why the substation require din electrical system?

1 Answers  

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why m and c are shorted in wattmeter

1 Answers  

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What is mean by Sub Synchronous Resonance(SSR)???

1 Answers  

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

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While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

0 Answers   Engineering,

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What is a soft start?

2 Answers   Bhel, jlpl,

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What is the Power factor of DC Power system ?

9 Answers  

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Dear Sir, we met a disaster with our 62.5 kva genset, after rewinding we informed by our contract engg that due to return current coming in neutral & impropper earthing this happend. But after all set up & load balance we checked & found again we have about 20 to 32 amp return current on neutral. we have 12 airconditioner + 12 mini fridge on single phase line. Pl suggest any idea to solved this problem

3 Answers  

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