What is the Polarisation index value ? (pi value)and
simple definition of polarisation index ?
Answer Posted / ricks
Its a capacity of insulation can withstand with volatge.
gives insulation healthiness,cleaness, moisture contains..
PI is taken as ratio of IR (10min)/IR(1 min).
SHOULD BE >2
1.5- HAZARDOUS
PI = 1+ (Ip/Is+Ir)
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what is the relationship between phase & neutral
What are different types of control systems?
what is difference between elr and R eartl realy.
List the characteristics of filter?
What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
Why is better to have a minimum ceiling voltage of 250% than 160%?
what is efficient motors and how it is different from normal induction motors
mention hazard experienced during installation
which protection used in power plant?
what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?
How to calculate mf when meter equipment and meter are connected
The power supplied to a 50mH inductor from a 120V, 60Hz source will be
What are the types of control system?
are there rmu for 3 transformer?
What is d main advantage of using double circuit 3 phase transmission ?