Answer Posted / vijayakrishna
motor has a stator and rotor.
if the rotor speed is above the synchronous speed it act as
a generator
if it is dc moor, then if you change the supply then it act
as generator
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
Why are the cores of large transformers built up of circular transactions ?
why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
briefly explain the main blocks found in a microprocessor based system
whats the differece between Exd and Exe
What are the essential characteristics of signal flow graphs?
Pl. brief about break-down maintenance of machine tool.
How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.
what will be the effect if you were using different brands of outlets?
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
What happens when two positively charged material is placed together?
how to calculate magnetic force genrated by a coil ?
what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????