Interested to Buy Any Domain ? << Click Here >> for more details...
When we are working on transformer(132\11KV). we are going
to isolate the transformer from both HV side and LV side.
then we are applying grounding on both side. My question is
that we required to isolate the VT which is still connected
from secondary side.?
- 1 Answers
- 4121 Views
- I also Faced
- E-Mail Answers
Answer Posted / binod
YES ,IT IS REQUIRED TO ISOLATE LINE VT IN SECONDARY
SIDE,BEACUSE BEFORE CHARGING THE TR. WE MUST MEASURE THE
INSULATION VALUE BY MEGGER
INSULATION VALUE TAKEN IN FOLLOWING MANNER
1)PH(HV)TO EARTH(EARTH CONNECTION REMOVED FROM TR. EARTH
BUSHING)
2)PH(LV)TO EARTH(IN THIS TEST THE LINE PT ISOLATED FROM THE
CIRCUIT OF LV SIDE OTHERWISE THE VALUE IS ZERO)
3)PH(PRIMARY)TO PH(SECONDARY)
4)CONTINUTY TEST BETWEEN PHASES OF LV(R Y B)&HV(RYB)
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.
What are the main significances of root locus?
132/6.6ππ πππππππππππ πππππππ πππ πππ πππππ πππ πππππππππ. πΈ'ππ πππππππ πππππππππππ ππ 6.6ππ/415π πππ πΈ πππππππ πππππππ ππ ππππ πππππ πππ ππ ππ 13/6.ππ πππππππππππ?? πΈπ π½π.. ππππ π ππ’??
how to decide choke rating for drive?
The shot circuit in any winding of transformer result? Explain
describe the constructional features of an auto transformer and its principle operation
Write a note on materials used as a fuse element.
The windings of a transformer are divided into several coils, because?
what is meant by residual over voltage & residual earth fault ?
how many types of motor can be used in washing machine
Igfet is a
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters
why is the conservator tank painted white on the transformer
how the speed of the gets motor regulated. does it draw the same current on the all speed level.
