Answer / v.senthilkumar

To measure insulation resistance of 11KV cable between core
& armour, we can use 5kv megger for 60 Sec.

Answer / thowsif_emerson_csm team

To measure insulation resistance of 11KV cable between core
& armour,

Test voltage is 28KV(RMS Value)
Duration is 300 Sec...

Answer / narendra sharma

11 kv cable resistance we can measure

Test voltage is 10 kv to 20 kv (RMS Value)
And time is depend on which voltage you are selected.
if 10 kv then time should be 120 sec..........
And resistance valu also going opposit to voltage..
if suppose volt is 10 kv then megger valu 2gomh, And if volt
20 kv and valu 1gomh then cable is ok both are same valu....

Answer / sujeet pandey

To measure the insulation resistance of 11kv cable, we need
to keep Megger test voltage at 1kv and take 2 readings; one
at a interval of 15 sec and other at an interval of 1 min.
This will give Absorption Factor which is equal to ratio of
resistance at 1 min to the resistance at 15 sec. If the A.F.
is less than 1.2(a/c to Indian Standards) then the
insulation is not good and we must take the remedy action.

Why induction motor is widely used in industry

0 Answers   BARC, Honda,

---

how much amps will get from a 360/11kv line

2 Answers  

---

Explain working of servo controlled voltage stabilizer.

3 Answers  

---

in a transmission line the aluminium cor is sarrounded and in between there is a another type of matrial what is that?

7 Answers  

---

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

0 Answers   HAL,

---

What is Tan Delta Test

1 Answers   Power Grid,

---

Why we are using Ohm's law? where it is applicable? explain.

10 Answers   Pyramid Saimira, TCS,

---

Hi,Any one has idea regarding the KPTCL Recuirtments for AE'e & JE's for the year of 2009-10???Kindly help in regards..

6 Answers  

---

v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ

3 Answers  

---

give me a clear defination of inductance,and how can u calculate inductance of a motor

0 Answers  

---

I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

0 Answers  

---

how could we calculate the no of outgoings from a 800 watt distribution board

0 Answers   United Engineering,

---