Answer / shahzad

in my point of view that the when single line to ground
fault occurs that phase return and then we get phase
voltage of two healty phaase become equal

Answer / nithi

The question what u have asked is technically termed
as "ARCING GROUND".
DUE TO VIRTUAL CAPACITANCE, THE VOLTAGE B/W THE LINE -
GROUND IS ALWAYS PHASE VOLTAGE.BUT IN THE CASE OF LINE-
GROUND FAULT IN UNGROUNDED SYSTEM,THE GROUND & THE
TRANSFORMER BODY ITSELF ACT AS A PHASE (AS THERE IS DIRECT
CONTACT WITH GROUND).
this is cumulative effect,due to capacitance again the
voltage b/w the line to ground keeps on increasing.this
will increase the pressure on the insulation,arcing
occurs,ultimately leads to breakdown of the system.

What is an ideal transformer?

0 Answers  

---

How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay

1 Answers  

---

what is the use of breather in transformer?

4 Answers  

---

how does a tube light starter works?

2 Answers  

---

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

2 Answers   UPCL,

---

---

what is Fault level? why it is calculated? how will u decide same for our plant?

0 Answers  

---

What is the differance between Digital Energy meter & Static energy meter? why the KWH diferance between both meters.

3 Answers   Raychem RPG,

---

What are the types of AMF(auto main failure) panel.

1 Answers  

---

To avoid arcing what we connect in earthing.

4 Answers   HAL,

---

What is the difference between security constraint unit commitment and security constraint optimal power flow?

0 Answers   College School Exams Tests,

---

How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

0 Answers  

---

Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

0 Answers   AVT Natural Products, EMC,

---