I have 11KV/415V power distribution transformer. I have
found unbalance current in LT (415V) side. Also observed
that unbalance voltage (3V) at LV side due to HV side
unbalance voltage. What should I check for this? Also, the
same LV side load can run in balance on captive power.



I have 11KV/415V power distribution transformer. I have found unbalance current in LT (415V) side...

Answer / k.prakashchandra

Inter -turn short on the HT side is suspected

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

It is observed that AVR of an Alternator is more likely to fail if the Generator and Mains Neutral are directly connected to each other. Why should this be so?

1 Answers  


How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

0 Answers   Siemens,


WHAT IS THE DIFFERENCE BETWEEN VOLTage and potential diff

5 Answers  


What is the reasonable voltage between Neutral & Earth of an electrical system for good earthing?

6 Answers   HAL,


Draw a Block diagram of TWO UPS systems connected in Parallel in Paralled mode?

0 Answers   HSL,






what is the use of CAPACITOR in CFL lamp?

6 Answers   Areva, Autopal,


can we use HPSV LAMP in HPMV LAMP fixture ?and viseversa.

5 Answers   OPS,


why the transformer was not rotating like a motor?

5 Answers   TATA,


what happens when one of the phases out 0f 3 phases been removed under working condition and no load condition will the machine run if so plz send me why

2 Answers  


how digital four pin earth resistance tester works

2 Answers  


what is the difference b/w UHVDC and HVDC(LIGHT)?

4 Answers   L&T,


How to Calculate KA Rating of Main LT Panel

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)