Interested to Buy Any Domain ? << Click Here >> for more details...
What is polarisation index value?.(pi value)
Simple & brief definition of polarisation index?..
- 7 Answers
- 19400 Views
- I also Faced
- E-Mail Answers
Answer Posted / md. robiul islam
Polarization Index is an indicator which gives an idea of
the cleanliness of the windings. It is a ratio of the
Insulation Resistance Measured for 10 minutes to the
insulation resistance value measured after 1 minute. Since
it is a ratio; it does not have any units.
Polarization Ratio = Insulation Resistance after 10 minutes/
Insulation Resistance after 1 minute
The Polarization Index should be above 2.0 to be
permissible. Machines having PI below 2.0 cannot be operated.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
i am gng to visa interview this july i have 4 backlogs gre 1010,toefl 75,pls give me the tips pls pls
what are the differant std sizes of cable trenches?
what will happen if ac and dc supplies given
WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?
How to find ampere on ht side for selection of cable size ???
How To Convert Apparent Into Real Power Without Knowing Reactive Power?
what is the function of capacitor duty contactor in an capacitor panel???
trasnfarmaer core make
What are gain margin and phase margin?
size of condotory fron voltage level
Do u know any one? how to find out in motor rated amps? formula?
Difference of induction motor & servo motor ??
If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?
HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?
What are the specifications for getting approval of Substation?
