Answer / prabhakar jha

duty cycle is a torque vs time veriation..generally we r using 10 duty cycle.

can i used 400A SFU (for the use of PA fan motor),if my BUSBAR rating is only 315A?????answer me quickly as possible.......thanks

1 Answers  

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WHAT IS THE REASON OF CHANGE FREQUENCY IN DG SET AFTER FULL LOAD.

1 Answers  

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What is Earthing?

16 Answers   Essar,

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How to calculate motor current for 3 ph & 1 Ph motor from KW rating?

3 Answers  

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Which rccb 30ma,100ma,300ma sensitivity should be used in domestic line and what is difference, advantage and disadvantage of all three

2 Answers  

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how to select fuse in any circuit? if with fomula ?and examples also

1 Answers  

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Why we check only first column of root locus..?

1 Answers   IES,

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why normally Generator rating are between 11Kv to 22Kv?

7 Answers   Torrent Power,

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What is OLTC in transformers and what is its function?

4 Answers  

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1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

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HOW isolation transformer works.

2 Answers  

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please write motor, transformer, Generator setting, fault level calculation of Tr.etc

0 Answers  

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