Answer / kanaksinh

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

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.

Answer / sanjay kumar jain

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

the voltage per turn of a primary winding of a transformer is the same as the voltage per turn of the secondary winding of the transformer. why?

8 Answers  

---

what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

---

explain wiring system

0 Answers  

---

In a single how much maximum current and watts using

0 Answers  

---

why vacuume circuit breaker is not used for EHV

3 Answers   College School Exams Tests, Crompton Greaves,

---

---

why bulbs when connected in series glow dim

4 Answers  

---

During Millivolt drop test current leads are applied in the extreme ends and voltage leads are given just before the current leads.. what will be the difference if voltage leads are given in the extreme ends? and why?

1 Answers  

---

what is meant by negative half cycle

2 Answers  

---

How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

0 Answers  

---

what is reasion of harmonic create the power supply , And how to reduced to harmonic

1 Answers   Turbo,

---

what is EIB lighting control system? what is the advantages of this system?

0 Answers  

---

In 2500kva transformer how much is the withstand High voltage power frequency between primary to secondary and earth? And secondary to primary and earth?

1 Answers   Honeywell,

---