Answer Posted / harish khera

Tolerance of electrical frequency for India is 1% ie 49.5-50.5 Hz.

why the voltage and current in a long transmission line are called travelling wave?

2272

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distribution is maximum done by a)radial b)network c) parallel d)b & c

2063

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How to use earthing on shipments.

1494

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in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1786

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Why in ESP Positive earthed

3147

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While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1981

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define the active power?

2091

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in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

2170

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which model T or pie model is prefarable in power syatem

1934

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Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1728

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what is subtransient , transient and steady stateac components

2212

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how to calculate the change over time for star delta starter for different KW motor?

4275

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condition Autotrip facia come on control panel of electrical transmission line?

1618

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1972

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what is the best transformer oil breakdown voltage?

1180

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