Answer Posted / tariq

DC Series motor has high starting torque. We can not start
the Induction motor and Synchronous motors on load, but can
not start the DC series motor without load....

how many joints are allowed in underground HT cable of 1 KM

1360

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delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?

1536

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Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

3841

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Which type of transformer is used for lighting loads?

708

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What is resonant frequency?

702

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can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com

1614

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reason of diode failure in alternator

1403

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if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

1389

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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

1647

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how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1445

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Explain the process of commutation in a dc machine.

602

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List few applications of d.c series motor?

698

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What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

1642

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Define active filter?

593

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Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com

1430

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