What is 100%
protection of
generator? Why
95% protection
is used not 100%?
Answer Posted / shailesh tankni
generators are basically synchronizing machine if a fault
occurs, they fall out of synchronization. but if the fault
is temporary or for a very small duration micro seconds or
seconds then the alternator/ generator may again achieve
synchronization without permanent interruption of supply.
this is the reason why the 95% protection is provided
instead of 100% protection.
otherwise for even for the small fault we would experience a
cut off eg: a small fault like contact of two phase
conductors due to sudden wind. which is a temporary fault.
| Is This Answer Correct ? | 42 Yes | 36 No |
Post New Answer View All Answers
How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"
No load tap changing transformer working
sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan
from which formula we select a capacitor rating?
why are distributed windings generally used in alternators?
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?
Why colled 440V to 3-phase supply.
how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?
A low wet bulb temperature indicates
is IS says that neutral should be brought to switch box. and this one is a recomended practice
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
pre arcing time of ehv breaker
If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link
upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.