in 50 mw generator if field is open in full load running condition what happen

Categories >> Engineering >> Electrical Engineering
Suggest New Category

in 50 mw generator if field is open in full load running
condition what happen and for protection which relay used?

Question Posted / anil_636

5 Answers
6472 Views
century, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / abid ali khattak

Usually we are using a loss of excitation rely. Which
always getting a sense from the field excitation circuit
continueslly during the runing condition of Generator.

Is This Answer Correct ?

9 Yes

0 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / a1

I is depend on type of operation-

1) If parrallel with grid/Other generator, than it will
draw reactive power from the Grid/Generator and give active
power to the load. It will work as a Induction Generator.
Reactive power of connected circuit will unbalance.

2) If Generator is running island mode(without any other
source), than terminal voltage of genertor will start to
decrease and current will start to increase. Winding temp.
of Generator and drives will increase.

Under excitation relay provide for this.

Is This Answer Correct ?

4 Yes

1 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / deepak

it run as induction gen & draw excitation power from grid

Is This Answer Correct ?

5 Yes

3 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / k.prakashchandra

Loss of excitation relay (LOE)

Is This Answer Correct ?

0 Yes

0 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / prodip das

It acts as a load, Sensing relay of excitation voltage

Is This Answer Correct ?

0 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

how to read idmt curva

0 Answers

sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers

0 Answers

THERMAL CAPACITANCE IS MEASURED IN..................................................

0 Answers SSC,

Energy metering: On the property I am renting, the supply voltage is 2 x 110 volts. These 2 x phases enter a energy meter which then exit the meter to over head lines to my house. Question 1. The meter is single phase 240 volts but is being used as 2 x phase(2 x 110volt), is this acceptable? if not, please give me the reasons. The meter details are as follows: 60Hz 15amp Imax 100 amp Kd 3,6 Wh/R 1 fase 3 hilos Model FX 231. I think it was manufactured in Brasil From this meter, the cables run along over head aluminum conductors,I estimate the cross sectional area to be 25mm diameter, but the neutral is only about 10mm square diameter, which cover a distance of 170 meters and then terminate with an underground cable of 65 meter length, total length = 235 meters. There must be a huge voltage drop over this length. This line is protected with 2 x 200 amp aluminum fuses after the meter, there is no main switch in the distribution board. These 2 phases connect directly onto 2 busbars. Surely the neutral should be the same size as the conductors if not more? Question2. What are your thoughts about this installation, should there be better protection, is the neutral too small? During the night, the lights dim then brighten all the time, this cannot be good for my electrical appliances. In my home, I only have a small electric geyser and fridge, my stove works off gas. But when i use other appliances like the washing machine or microwave oven, the light dim. The internal wiring of this house is done with solid hard drawn copper wires and of course, they have to be under rated. I am a retired electrician by trade, but not on the metering and over head mains side, my experience is on the factory maintenance side of things. Your expertise on these matters will be greatly appreciated. Please inform me how to rectify or make any improvements Kind regards, my power bill is very expensive, so I need to know how to bring it lower. Kind regards, Brian

1 Answers

what are the things that can cause a three phase motor to crawl?

1 Answers

make control wire diagram of start and stop a function with a single push button

1 Answers Sona,

Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

0 Answers Legrand,

How to find HT side and LT side(of a transformer),with the help of a voltmeter?

1 Answers Odisha Power Generation Corporation OPGC,

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 Answers

400kw, 3.3Kv motor want to fix 1000km away from substation. What is full load current? and what is the cable size for motor? I amp expecting answer and advice from your side.. thanks...

4 Answers Kuwait Oil Company, Weatherford,

how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

0 Answers TK Group,

what is the ka rating of mccb. and how it is decided .

3 Answers Napino,

For more Electrical Engineering Interview Questions Click Here