if transformer winding burn on dc supply then
why not alternator rotor winding please post
answer on y.sakhare@rediffmail.com
Answer Posted / anil
there should be a relative motion to induce an emf i.e
either a rotating rotor field with dc or alternating supply
to the stationary core in case of transformer if we give
constant dc than there is a constant flux linking with the
secondary which will not produce any emf in secondary and
thus since there is no opposition to the primary emf and
the resistance of winding is very small this will lead to
high currents in primary and thus may lead to the burning
this is not in case of alternator since the rotor is
rotating
Is This Answer Correct ? | 12 Yes | 3 No |
Post New Answer View All Answers
why we permissive overreach in distance protection.where it is applicable to use in long r short lines
What the main causes of transient interruptions on Over-Head Distribution Lines?
what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.
what is the k var ratting of 1250kva
why we used ZNO in Lightning arrester.
Whata are the types of Cables?
How does a television work?
What is method of calculating the fault current for a MDB, 50KW, 3PH, 415V, 50HZ?
what is the use of the circle diagram
what is the meaning of impedance protected in instrument cooling fan
A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.
what will happen when the dc supply is given to the capacitor?
does any one know where we can purchase insulation oil for high voltage oil filled cables
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar