Answer / k.prakashchandra

PI means 'polarisation index'.It is the ratio of megger
values at 10 th minute and that at first minute.This value
should be more than 1 and more than 1.5 is preferred.For
this motorised megger is required.For appx value, if you do
not have such megger ,values after 60 seconds and 10
seconds may also be considered.

WHICH TYPE OF TRANSFORMER IS USED IN POWER TRANSMISSION BASED ON TRANSFORMER CONNECTION ON PRIMARY AND SECONDARY SIDE

3 Answers  

---

difrence bitwin boost charge and float chargeing

1 Answers  

---

WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

0 Answers  

---

What are the limiting factor for controlling maximum hot point temperature within a hydrogen and water cooled generator?

1 Answers  

---

What is the method to calculate the capacitor bank rating for say 50 KW load and how do we connect each capacitor to busbar??

4 Answers  

---

what is the effect of leading power factor

3 Answers   Aurobindo, R L Steels and Energy,

---

WHAT HAPPENS IF FUSE IS CONNECTED TO NEUTRAL WIRE

5 Answers  

---

i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

0 Answers  

---

what is the highest voltage for transmitting electrical power in india

5 Answers  

---

We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?

2 Answers   Suzlon,

---

can v use earth as nutral. yes than y.if not y.

3 Answers  

---

state basic meaning of 'INDUSTIAL AUTOMATION'?

0 Answers  

---