how to check a transformer insulation?

how to check a
transformer
insulation?

Question Posted / shaji

3 Answers
8031 Views
Kirloskar, Kirloskar Chillers, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how to check a transformer insulation?..

Answer / kanaksinh

we conect 1000v mager between ph-ph & ph-earth and check
valu its more then 5mohm its ok

Is This Answer Correct ?

10 Yes

2 No

how to check a transformer insulation?..

Answer / kamalkumar.s

To check the use of megger (Phase to Phase) and (Phase To
Earth) the range more then 5 Ohms its k.Below 5 Ohms to
check the cable and correct it.

Is This Answer Correct ?

1 Yes

1 No

how to check a transformer insulation?..

Answer / sanjay kumar jain

we will check the Transformer PI value by Megger. It should
be <1.25 then transformer insulation isfair

Is This Answer Correct ?

1 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

what ll happen if neutral is not shorted with phases while doing transformer short circuit test & what ll happen if neutral is connected to ground?

1 Answers

What are the role of each components in PID COntroller

1 Answers BARC,

what is numerical relay explain its operation

2 Answers ABB,

1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

0 Answers

Which type of moter is used in trains, what is the ratting of supply used explain Working principal?

2 Answers

what is form factor?

3 Answers

What is the difference between INVERTER and UPS?

7 Answers

which types of tests are required after commissioning of 6.6 kva tranformer?

3 Answers Reliance,

WHAT HAPPENED HT MOTOR FEED WITH LT SUPPLY

1 Answers

how to calculate energy of 3-phase motor?

0 Answers Suzlon,

What is the function of capacitor in electrical circuits?

0 Answers

Working of microwave oven?

0 Answers LG,

For more Electrical Engineering Interview Questions Click Here