Answer / apoorv

this is transposition to reduce the
interference of power lines with
nearby communcation lines.

we have taken HV test of 2.5 k and Megger test on 11 kv HT cable.here it shows no fault but when we are charging the same cable with 11 kv supply why the VCB 11 kv gets tripped can anybody define the possible cause of fault ?

4 Answers   MAHINDRA,

---

what is impedence of transformer? its formula

1 Answers  

---

What is the effect if power factor is above 1 or unity.

15 Answers   NTS,

---

what is saturation in transformer

9 Answers   Essar,

---

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

0 Answers  

---

---

How to identify the whether its an isolator or Breaker in MDB

5 Answers  

---

What is difference between YNyn0 and YNyn ??

0 Answers  

---

Why USe In -48 DC Volt !

3 Answers  

---

what take 100 w take current

1 Answers   SoftLogic,

---

generally on the roadside v hav 11kv line which is being step down to 440v line to line....so any1 can tell me which type of transformer they r using whether it is star to delta,delta to star etc...???

9 Answers   Core Solutions,

---

What is the amount of no load current of 630 kVA tranformer voltage ratio 11kV/440V ?

13 Answers  

---

If we touch the Capacitor terminals you feel shock after the capacitor was put in operation and not in case of inductor though both are energy storage elements.why?

4 Answers   HAL,

---