Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Polarisation index value ? (pi value)and
simple definition of polarisation index ?
- 15 Answers
- 80113 Views
- Essar, I also Faced
- E-Mail Answers
Answer Posted / josephat murusura
PI is the ratio of the 10minutes megger value to that of
the 1 minute.The minimum acceptable value is 2.Any value
below 2 is not good enough for the operation of the
electrical machine[motor or transformer]& it indicates that
the winding insulation has detoriated.
| Is This Answer Correct ? | 3 Yes | 13 No |
Post New Answer View All Answers
can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?
how to set the time in digital timer ?
why the NGR (neutral grounding resistor) always OFF during DG off?
Can anybody tell abt concrete encased earthing or grounding?
what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com
Classify driling machines.
Wind mill
Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me
Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?
What is Tachometer used to measure?
what is errection pcbs?
CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS
why impudance relay used for medium transmission power system? why not others?
what is the function and use of cable differential protection relay?
