Interested to Buy Any Domain ? << Click Here >> for more details...
is KVAR (not reverse power) relay necessary to protect from
excitor field failure on a brushless, synchroneus generator?
Some people with previos experince tell me no but the
manufacturers tell me it is designed for that purpose.
Is it that it is only necessary for brushless generators
and not the older style with the slip rings and brushes?
- 1 Answers
- 4681 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
Field failure makes synch gen run as induction gen drawing
large lagging KVAR from system and hence KVAR relay will
act.In older gen, there was no such relay.If the field
breaker tripped the whole unit tripped on master trip.If the
FB did not trip,the unit cb tripped on over current.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
why we use the 100% and 95% stator earth fault protection for the synchronus generator ?
what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me
What is the most important precaution in any experiment with d.c. Shunt motor?
Why neutral point is consider as zero potential?
hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u
Differnce between negative Pahse SequenceFunction and unbalance Function?
How grounding is different than earthings?
how to calculate single phase motor efficiency ?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
Explain about retrofitting of machine tool.
what is earthing transformer? draw the winding dia.of earthing transformer.
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
What Should be the value of Vector Surge angle at Tripping and how to calculate it?
in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}
Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?
