Answer / purushmallya

As per ES&D and Grid code for distribution transformer 3
earthings are mandatory one for neutral one for LA and one
for matallic parts like GOS

Answer / prashant

2NOS OF BODY EARTHINGS AND 1 NO OF NEUTRAL EARTHING

FURTHER MORE THE BODY EARTHS CAN BE INTERLINKED WHILE THE
NEUTARL HAS TO BE SEPARATE

in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.

1 Answers   Gasal, Voltech,

---

What is ELCB?

9 Answers   Bhel, CDS, IOCL,

---

If the neutral wire go pass through the core balance current transformer? If yes then why? and no then why?

2 Answers  

---

what are the stresses in circuit breakers ?

0 Answers  

---

How to measure the earth resistance value in a concrete pavement(flood light area)?

0 Answers   ANZ, Watt,

---

please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com

0 Answers  

---

why we can't use more then 50 hz in india ? Is it possible ?

7 Answers   DVC,

---

when the PFR (POWER FACTOR REGULATOR)change a step to zero,one of the RCCB will triped off,is it the changing step of this PFR effect the RCCB?

2 Answers  

---

what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..

1 Answers   UPPCL,

---

The power supplied to a 33microF capacitor from a 120V, 60Hz source will be

0 Answers  

---

transformer test

4 Answers  

---

what is negative and zero impedance in 3 phase induction motor ??

0 Answers  

---