Answer Posted / pradyumna chandra panda

Induction motor is easily self started and it's speed is variable which is less than synchronous speed and motor leg the current behind the voltage ie poor power factor. In simple Synchronous motors are not self started (they are self started by Drive) it's speed is equal to synchronous speed and the motor maintain approximately unity power factor ie not legging.

i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

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WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME

1404

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What willbe change in programming when we use 5/3 solenoid inplace of 5/2 in operating of a cylinder?

1604

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What current position are you holding in your current company?

1617

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please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

1516

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A jet of fluid strikes a plate What was the force required to counter it?

1458

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1774

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How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?

4258

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693

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675

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What was your role in the silicon evaluation/product ramp? What tools did you use?

1561

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what is the IS foe lightning arrester?

1681

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Difference between HRG and NGR. Are they both the same thing

3643

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what is the ATS .And how it works.

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