Interested to Buy Any Domain ? << Click Here >> for more details...
why transformer ratings in kva?
- 99 Answers
- 237899 Views
- Bhel, College School Exams Tests, DOW, Emco, Esab, GE, KCP, PGCVL, Sodexo, TCS, vtps, Wipro, I also Faced
- E-Mail Answers
Answer Posted / princealekota
Since transformer is a static there will not be any
rotational losses it have only iron loss depend upon
voltage and copper loss depend upon current
for AC supply systems like generator, transformer rating is
done in KVA because of inductance present in AC . we don't
know load is resitive or inductive
so we will take load KW=KVA,
power = voltage*current*cos(pi)
if load isinductive cos(pi) have some value less than 1
if load is resistive cos(pi)is 1
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what causes contact chatter when there is no demand on the air conditioning unit?
how to calculate percentage impedence at 75 deg C at normal tap
How 48-relay (incomplete sequence) functions?
we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards
how to control dc motor?
why we get 2 differnet values for power factor in 2 watt meter method in 3 phase
How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?
what is diff btw electric,magnetic & eletromagnetic field
Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632
What kind of maintenance is conducted for Transformer
state the working principle of incondenscent tube?
What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?
What is the current carrying capacity of 35sq.mm flexible cable?
