Answer Posted / kh

3 core is used for 3-ph loads/systems which do not require
neutral e.g. motors. 3.5/4 core is used wherever 1-ph
supply is also required (tapped between 1ph-N) in addition
to 3 phase supply. 4 core used for smaller cables usually
upto 16 sqmm where neutral core is of same size as phase
cores while 3.5 core is used for higher sizes where neutral
core is half the size of phase cores.

plz explain the auot-reclosing circuit in electrical engineeing

2469

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when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)

2064

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Why line VTG = √3 phase VTG in star? How?

1608

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Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

2197

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what is ic 01,ic 06 ?is it types of cooling?

4305

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Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.

1924

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What is the tension required for the 25000 CFM AHU belt

2478

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What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1846

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

1965

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how much LT load can bear by the 100 KW HT connection.

2218

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Comment on the working principle of operation of a single-phase transformer.

1195

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Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

2024

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i have a 1500kVA transformer what is the kWH meter i need to use?

1778

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

1605

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Differentiate between low pass, high pass and band pass filter?

1062

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