Interested to Buy Any Domain ? << Click Here >> for more details...
If one 10 Hp 3phase induction motor connected in 380volt
50Hz. and again its connected to 380volt 60Hz. howmuch
currrent and power take on both time?????
- 1 Answers
- 4912 Views
- I also Faced
- E-Mail Answers
Answer Posted / badshah
1.2 times that of 50 Hz Power. Frequency increases the
Speed & which in turn increases the power consumption
[P=(2*pi*N*T)/60 and N = 120f/Poles)]..so the ratio is
60/50. But the losses will be more, cause iron & hystersis
losses proportional to frequency squared. I think overall
efficiency may be reduced than when the motor is connected
50 Hz supply.
| Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
how to calculate earth fault relay current and CBCT ratio
What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.
how current is reverse from its normal direction during the fault?
What is inverse definite minimum time lag relay? Where is it use?
PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.
What is open delta Xformer? It's adavntages & Use?
Classify milling machines.
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
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
Define sensitivity?
What is the power factor of a transformer at no load?
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
Can you explain about pole discrepancy scheme
Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.
