Answer Posted / rajeee43@gmail.com
IN ANY MACHINE THE RATING DEPEND UPON HEAT,HEAT LOSS DEPEND
ON HOW MUCH OF POWER LOSS IN THE MACHINE,IN THE TRANSFORMER
THE CORE LOSS DEPENDS ON VOLTAGE AND COPPER LOSS DEPENDS ON
LOAD CURRNT,i.e NO LOSSES DEPEND UPON POWER FACTOR THAT IS
THE TRANSFORMERS ARE RATED IN KVA INSTEAD OF KW.(reffer in
p.s bimbra text book electrical machines)
(OR OTHER WORDS)
KW RATTING IS DEPENDS ON POWER FACTOR ,THAT IS KW VARIES
WITH LOAD POWER FACTORS ,IF TRANSFORMERS RATED KW THE
RATING CHANGE WITH LOAD TO LOAD ,THAT IS THE TRANSFORMERS
ARE RATED IN KVA INSTEAD OF KW.(GENERAL ANSWER
rajeee43@gmail.com)
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?
What is notching in dc machine?
What kinds of decision are made about CT from it's Knee point(voltage & current)?
sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence
do we use neutral grounding for resistive balanced load? if we use what happen?
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
what is earth resistance? how to measured? and give values at power station and mcc area?
state types of reflectors in illumination engg. ???????
how braking & making capacity of circuit breaker is calculated?
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
Any Electrical Engineering jobs?Please refer for interviews. Thank you
What is the role of power pack in substation protection system?
design of IGBT firing circuit for 11KV
Why front mounted CT polarities are always towards breaker?
