Answer / rajesh k

in d case of generator, if we remove dc exciter (internal
exciter), the out put vl fail 2 produce electricity.
Consequently AVR will trip off the generator.

Answer / ketan

if the generator running in parallel opearation,generator
will draw power from busbars and act like motor to prevent
this we use reverse power relay

Answer / manan bhatt

if we remove dc exciter from running machine then due to
absence of rotational energy, machine will stop but will
take some time for remaining kinetic energy of rotor.

Answer / k.prakashchandra

In case of DC shunt motor the speed goes on increasing .In
case of grid connected gen, the machine will run as
induction motor when prime mover is shut down and as
induction gen if the prime mover is running.IN case of
series motor ,it will come to rest.

in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.

0 Answers   ABB,

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WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

0 Answers  

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If i=10+10sin314t then find the rms and average value of current with explain?

2 Answers   Heptacare, TCS,

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Dear Sir I am living in Jaipur Rajasthan  now I did complete my b tech degree in electrical engineering in 2012  Sir how I gate certificate of competency for electrical supervisor

0 Answers   ONGC,

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what is voltage,current,restance,. what is single phase&three phase motar. what is basic electrical 'farmoulas. what is defirens quetions of electrical maintenance.

2 Answers  

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Hi to u all : Friends: Why when operate on 2 phase welding machine the power metr goes reverse ?? the meter is god on other loads. thanks

2 Answers   Gedco,

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How to configure the drives in PLC, through Profibus commnication. And to how to address it?

0 Answers  

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Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?

0 Answers  

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In 11KV Double pole structure for each phase we are using Disc one Insulator. Why we are not using 2 r above insulators instead of one insulator?

4 Answers   Genus,

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We are using Powerica make 100 KVA DG set. Whenever i connect compressor on DG load (Compressor Make Atlas Copco 5.5 kva) that time we face the lot of fluctuation on Dg output. Can you please suggest me how can prevent this fluctuation?

6 Answers  

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control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 Answers  

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why the flooring of substation is done with small pebbles or stones..?

16 Answers  

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