Answer Posted / raghu .b

induction motor need prime mover to rotate the rotor at
certain speed,and slip rings to collect the power to
extranally in rotor shaft end.some other small changes
required to induction motor act as induction generator.

How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1224

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i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

1867

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1740

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What is tan delta & PPM in transformer? and whats its IS value?

1595

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why transformer tank is in rectangular shape what happen when it is in step shape

957

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how to calculate singlephase motor efficiency?

1730

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WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

1631

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dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?

1524

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How many types of electric motors are there?

656

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How to calculate the Efficiency of Chiller

2854

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how we calculate the withstansing current capacity of wires&cables?

1488

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i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

1597

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why sielent pole is used only in hydro generators and not in turbo generators

3361

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How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

3611

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Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

3351

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