what are the difference between protection class CT and
Class PS CT
Answer Posted / patel indukumar
Protection class is ued in protection like over current
relay and earth fault relay of transformer,Alternator and
HT motor.PS class is used in DIfferential protection like
transformer,Alternator and HT motor.
| Is This Answer Correct ? | 13 Yes | 6 No |
Post New Answer View All Answers
Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
How do I calculate/select Droop CT ratio for various capacity of generators?
How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
What is the difference between multimeter
What is critical disruptive voltage?
How work of capacitor in dc supply...???
For group 1 , 2 whather i have to prepare my technical or general studies etc? and im graduate in ee engg. for wht posts im eligible for? please tell me!
how does this job compare with others you have aplied for?
Can i use the B-curve MCB instead of C-curve MCB
why single CT used in DOL starter power circuit?
State and define ohm’s law?
Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?