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
No Answer is Posted For this Question
Be the First to Post Answer
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?
What is the gain of 1-s/1=s at 1 rad/sec?
How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.
What is the Power factor of DC Power system ?
What type of core material is used for metering C.T and protection C.T???
The corona effect is more in a) summer b) winter c) dry weather d) humidity weather
i want to do a project on PLC.... please give me an idea.....
can we use only a isolator in the subtation..
Is only insulation the difference between High voltage and Medium voltage cable?
Explain in brief description about the operation of DG sets.
Explain why machinery used on a.c supply is usually rated in KVA instead of KW?
How to select the proper VSD to operate high inertial load
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)