adspace
What is the Polarisation index value ? (pi value)and
simple definition of polarisation index ?
Answer Posted / rajendra
PI = Insulation resistane after 10min/Insulation resistane
after 1min.
or IR10/IR1 or IR+IL+IP/IR+IL
IR Conduction current
IL Surface leakage current
IP Porising current of water molecule presnt in the
Insulating matrials(usually zero after 10min)
Above 2 is adequate to run the machine below 2 needs
improvement??
| Is This Answer Correct ? | 20 Yes | 4 No |
Post New Answer View All Answers
why lightning arrestor are made in two stack of insulator but why not cvt
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
What is the height of DA, DAL, DB, DC & DDE tower?
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in
pls,send the previous year written test questions.
What products have you designed which have entered high volume production?
Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
Yazaki india pvt ltd interview questions qurey related
Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.
What types of high speed CMOS circuits have you designed?
as a electrical student why should i hire you?
TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.
Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????