Interested to Buy Any Domain ? << Click Here >> for more details...
1.why motor rating in kw instead of KVA?
2.why alternators rating in KVA instead of KW?.
3.why transformer rating in KVA instead of KW?.
- 6 Answers
- 8487 Views
- I also Faced
- E-Mail Answers
Answer Posted / sanju
All depend on power factor.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
where are the circulat the diesel in DG parts name with pictue
What is the difference between the relay and the circuit breaker?
Write a note on materials used as a fuse element.
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
Form S and "c" license application both are same? @ tneb portal
model question paper for supervisor trainee
plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in
which type of amplifiers are used in multimete?
How many sprinklers should be in one pipe line?
Any Electrical Engineering jobs?Please refer for interviews. Thank you
what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?
