Interested to Buy Any Domain ? << Click Here >> for more details...
we have taken HV test of 2.5 k and Megger test on 11 kv HT
cable.here it shows no fault but when we are charging the
same cable with 11 kv supply why the VCB 11 kv gets tripped
can anybody define the possible cause of fault ?
- 4 Answers
- 6736 Views
- MAHINDRA, I also Faced
- E-Mail Answers
Answer Posted / shariff
The 11kV cable will be designed for morethan 12kV and the
megger applied voltage is just 20% of that rating.. so the
cable insulation might be withstanding at that vg but it is
failing at higher voltage.. So go for the Hi pot test with
DC pulse nearly 15kV...
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer
at which voltage level arcing ground is occurs ??????????
hello friends..... any one have papers or any study materials?sail ,hpcl...?
How does zener phenomenon differ from avalanche breakdown?
describe the Tranformer testing procedure
What are the conditions for sustained oscillator or what is backhouse criterion?
DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES
Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control
what is the use of piston rings in the engine used for a generator...........
What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?
how the CT and PT is connected in the circuit during testing of transformer explain with diagram
magnetizer priciple
why to use freewheeling diode ( diode in revers bias mode) across dc coil
Formulae for calculating the transmission line losses for different voltage levels
How does a transformer contribute towards the widespread popularity of ac system over dc?
