L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW
MOTOR STARTS WITH EARTH FAULT RELEASE



L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW MOTOR STARTS WITH EARTH FAULT RELEAS..

Answer / k.prakashchandra

If it is new and under test ,CT might have been provided on
neutral instead of phase.If not , mostly due to pole
discrimination ( all poles not closing simultaneously ).
Disable instant element while closing .

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

2 Answers   UPCL,


Why are cables rated for 40 KA for 0.25 Sec fault current rating?

0 Answers  


What is an ac motor?

0 Answers  


Can anyone explain about Control and power circuits of star delta starter & DOL starter ? How it works? please!

1 Answers  


Why no-load primary current is very small as compared to full load current in transformer (as 1% of full load current?

5 Answers   NTPC,






Is it possible to interlock between ACB & MCCB?

2 Answers   Areva,


what is an rmu?its circuit diagram.functions

14 Answers   CP Bangladesh, Emrill, NDPL,


11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

0 Answers  


What is installed in PAC that is control the humidity

0 Answers   Sodexo,


what happens if dc supply is given and the remedies for it.

0 Answers  


what is the formula for calculating motor rating? Example: If we want to rotate a 1000 kg waight disc up to 100 RPM, which size motor will require?

1 Answers  


What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)