Answer Posted / umesh bawa
we can check HT unlive cable with the help of megger.so in
this way we can check resistance of cable.To remove the
moisture of cable we can give LT line(440v).so in this way
we can remove the moisture.
| Is This Answer Correct ? | 10 Yes | 3 No |
Post New Answer View All Answers
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
What is the ideal position cooling fan inside the dc motor?
If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.
What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps
How to calculate loses in transformer of 160 KVA ?
what shoud be strength and weakness to impress interviewer????????
Define stepper motor. What is the use of stepper motor?
Mention what are the types of semi-conductors?
WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB
What are locations arc protection relay is fixed.
How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?
From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?
Define characteristics impedance?
