Answer / sanjay

It is not producing rotating field on any physical plane &
can not produce torque

Answer / krishna kumar.k

A transformer & an induction motor, which rotates, work on
the same principle of electromagnetic induction. In the case
of a motor, the rotor,which can be compared to the secondary
of a transformer,is wound on physically free to rotate
arrangement and hence it rotates.

But a transformer secondary is physically not designed and
is not free to rotate.

Answer / dharmendra

In transformer both winding are connected magnetically.Also
on same limb.No air gap between primary and secondary.

What is SFU ?

4 Answers  

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1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

0 Answers  

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Installation method of self treated earth electrode.

0 Answers  

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Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 Answers  

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How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.

0 Answers  

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What is converter transformer? Diff b/w converter transformer and distribution transformer? why we use converter transformer in place of giving supply to drives?

1 Answers  

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In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

0 Answers  

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If single phase having 220v so why 3phase is440v.

7 Answers   DLF,

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is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

2 Answers   Bhel, DRIEMS,

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HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

0 Answers  

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what is the meaning of TRF

1 Answers   Khidmah,

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How to test and satisfy the conditions of the vector group YNd1 for power transformer?

1 Answers   Areva,

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