Answer / sudhakar g

If we Dc supply to primary side of the transformer means
the Flux doesn't change and it causes the winding of the
Transformer will burn....

Answer / jadhav babu

if we give dc supply to the transformer the primary side
winding will get induced emf which is constant ,but we
require an variable emf so that mutual induction takes place
and emf is induced in secondary of the transformer .if dc is
given for a longer period the transformer may get damaged

Answer / benu

with dc supply reactance part of total impedance will be zero.
,,net impedance will be less,primary current will be high which will generate excess heat in winding,resulting in burning of pri winding

Can anybody tell me the Electrical IS rules website?

1 Answers  

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What is a fuse? How does it work? What are materials used?

0 Answers  

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why i can not use thimble on capacitor duty contactor

0 Answers  

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What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

0 Answers   HPCL,

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is a normal conductor can be used a core in windings if not what is the winding core speciality.

2 Answers  

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what is the function of AVR in generator? how the generator maintain the frequency while varies the load?

1 Answers  

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what is the formula for AH?HOW CAN IT CALCULATE

1 Answers  

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Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

0 Answers  

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how and where megger works?

9 Answers   Power Grid,

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What is the difference between rated and per unit in transformer?

0 Answers  

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what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

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