Interested to Buy Any Domain ? << Click Here >> for more details...
what is back trip and re-trip in protection schemes? why
these two? define me the exact function of these two?
- 1 Answers
- 7546 Views
- Siemens, I also Faced
- E-Mail Answers
Answer Posted / santosh kawade
Backup trip and re-trip are functions use for high voltage
overhead transmission line feeders.
In this system normally fault occurs are very short
durations like fault due to birds or due to fall of some
objects on transmission lines. In this case transmission
line trips due to fault but again breaker auto close after
certain duration (approx. 500 to 1000 milliseconds). But if
fault persist it again trips and will not close
automatically at second time.
Santosh kawade
9224 69 3116
| Is This Answer Correct ? | 2 Yes | 10 No |
Post New Answer View All Answers
Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?
what do w do when the output of generator is fluctuating?
what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????
In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem
what is the working principle of energy saver control panel. please give the complete calculation & theory.
what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
what is the thumb rule for determination resistance of resistor?
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?
How can calculate the rating of a alternator for a given specific load with formula
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group
How to calculate loses in transformer of 160 KVA ?
single phase power supply give to separate one steel coup with water, what reaction create
