Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sunil kumar sinha
If the excitation of generator is lost, it will continue to
generate power by taking excitation from grid. The flux
will pass through the surface of rotor which will cause
excessive heating of rotor. Further, around moon slots the
current will jump and may cause over heating around moon
slots of generator rotor beyond limits.
There is possibility of insulation failure of rotor winding
if operated for longer period at higher load, hence loss of
excitation relay is a must protection for generator. This
relay is further monitered by excitation supervision relay
in many of sets.
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?
why swityard is necessrry requirement in any bis power distributin systems?
The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition
In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?
Why we use ups battery and dsdb battery in thermal power plant
what is the meaning of osr in transformer.
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
How Self works in DG set
what is the use of permanent magnet generator in exciter
What is resolver and glass scale in CNC how they work?
we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?
what is the difference between ups & inverter
What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?
which model T or pie model is prefarable in power syatem
What are the differences between single phase and three phase?
