Can a 50-Hz designed transformer be used at 60-Hz system?
Is the same remains true, when a 60-Hz designed transformer
be used at 50-Hz system? Consider only frequency variation.
The voltage remains as rated value in all cases.
Justify the answer.

Answer Posted / iamdon

A 50-Hz designed transformer can be used at 60-Hz system
but a 60-Hz designed transformer cannot be utilized at 50-
Hz system.

Because in later case, the transformer windings(primary and
econdary)will draw approximately 20 % greater current than
the rated one.More current flowing will produce more
winding heating loss.The temperature of winding rises
(Beacuse cooling system was designed for rated current
which was lower as compared to present higher value of
current at low frequency operation)and it get burnt.

Author:arbelectbit@yahoo.com

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What happens to voltage when current through the inductor is constant?

673


How to check the Bushings of the transformer?

1261


An automatic water heater is an example of which type of control system?

714


why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?

1454


defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

3212






why ht motors are star connected?

1422


1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

10195


How to decide cable tray size?

713


hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2126


can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

1492


I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1508


why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1466


What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1571


What are the advantages of hydropower?

652


Do you know what is dry-out test in x'mer

2214