why dc power can not be used in transformer?
- 33 Answers
- 61672 Views
- GE, Sail, I also Faced
- E-Mail Answers
Answer Posted / sagaya prabhu
Transformer is mutual induction device , No induction
Effect is acted in D.C Supply . & if you give a D.C supply
to transformer windings the windings will be burn out ,
because of static EMF is produced by D.C Supply.
| Is This Answer Correct ? | 46 Yes | 9 No |
Post New Answer View All Answers
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me
What are the relays in ACB and VCB
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
Dear Respected sir how to test ABB REX521 protection relay by relay tester.
Can you explain about pole discrepancy scheme
What is nyquist contour?
mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in
what is meant by flywheel and its role in retardation test
pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..
What is an iron loss or core loss pi?
State thevenintheorem?
What is the function of the generator exciter?
why do we carry out winding resistance test?
