If DC supply is given to a transformer it may
a) Work
b)Not Work
c)Give lower voltage than the rated voltage on secondary
side.
d)burn the winding
- 12 Answers
- 13183 Views
- wbsedcl, I also Faced
- E-Mail Answers
Answer Posted / puja sinha
b)it will not work.because a transformer works on the
principle that an alternating flux is produced bya an
alternating quantity that oppose the main field.if the
supplied quantity is not alternating <alternating flux is
not produced and the transformer will not work.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.
What are two contours of nichols chart?
What is mean by STUB protection?
what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
what is difference between 5A and 100A CT constructional wise and operation?
Which material is used for the core of a transformer and why?
Showing results for capital, machinery, stock,wages, carriage in words, salaries, factory rent, repairs, fuel and power, buildings, debtors, sales, purchases, creditors, return outwords, return inwords, drawings, discount allowed, discount receivable, office expenses, bills payable, bills receivable, cash in hand, cash at bank, office rent comes under debit or credit
Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com
Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?
If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.
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
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?
what is reverse power relay brief explanation and in b/w where it is connected
