what is the safe meggar values for motor, transformer HT, LT
and Cables?

Answer Posted / akshay grover

Megger guys say, the value shall be


Megger Value (in Meg Ohms) = (system Voltage + 1)/ 1000

Is This Answer Correct ?    30 Yes 13 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?

1519


what about SAP/MRP regarding manufacturing of electric motors and all drives?

1568


Why the earth to phase voltage is high 250 compare to other two phases

1053


Define transfer function?

740


1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

4216






What is the purpose of stand by earth fault protection for transformer ?

1549


explain the types of drives

1550


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1682


In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1588


why does a dc machine has high efficiency while working as a generator than as a motor ..

1479


What is the method to solve circuit using source transformation?

654


Ratings of power transformer,Distribution transformer.

1091


ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

5639


What is the formula of frequency ?

957


Why is a plain induction motor unsuitable for wide speed control?

1817