Answer / swapnil mohite

Because properties of vaccume is not much efficient to work in
EHV........instead of vaccume " Sulfure hexaaflouride gas "
having more efficient properties to work in EHV line....

Answer / sakshi

vacume ckt breaker of high rupture capacity are more
expensive than other type of ckt breaker..more over the
interrrupters is limited for 20kv,thus above for 36kv ,two
interrrupters are required,,,

n in event of vaccum loss at Extra high voltage,itz repair
is immposible..

Answer / k.prakashchandra

Perfect vacuum is not possible.

Difference between UPS and Inverter?

7 Answers   HCL,

---

the electric traction poles having 3 cables n two cables touches with a insulator (or any) another one separated but it will be running 1-phase why?

4 Answers  

---

what is the pperating squvance in transmission line for circuit braker, isolater & earthing switch.

2 Answers  

---

difference b/w semiconductor and insulator

5 Answers  

---

what about the input current fan when regulator regulates to speed low?

1 Answers  

---

brief notes on ammeters

0 Answers  

---

when motor taking high amp what happen.

4 Answers  

---

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

---

what is the difference between elcb,rccb,mcb.

8 Answers   HCL, RCCB,

---

I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

---

why ht cable end termination don't have a gland?

0 Answers   Private,

---

the process cynide is used for?

2 Answers   MAHINDRA,

---