Answer / tanvir s.

As far as i understand Neutral Grounding Transformer are used to Ground the both transformers as well as Generators. NGT is applicable (useful) in transformers/generators with delta connection. So during line-to-earth faults, the NGT helps the zero sequence current to flow in the ground. Any unbalance in the load distribution between the three phases is passed thru the neutral, which is not available in case of delta connection. Hence the NGT.

Answer / sunil kumar sinha

Neutral grounding transformer is used to limit earthfault
currentof generator. It also provide Generator earthfault
protection, both alarm and trippingby connecting voltage
relay across the secondary winding of NGT.

We have a bank capacitor rating of 60 KVAR for a overall load of 160 KVA and we have connected three loads of 50KVA each. We would like to auto matically correct PF using APFC. How do we design it?

2 Answers  

---

How can you test the vector group of power transformers?

2 Answers  

---

What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

0 Answers  

---

why are the transmission lines operated at 220 kv nly... nt les dan dat...

3 Answers  

---

differtiate between energy consevation and energy efficiency..

1 Answers   L&T,

---

At what condition differential relay will act in transformer and ht motor?

1 Answers   Equate,

---

Why High voltage are generate noise ?

0 Answers  

---

Baud rate is used to descrice...?

2 Answers  

---

What is touch potential and step potential?

0 Answers   IRI,

---

i want to run 11kv star connected motor in 6.6kv with delta connected throught inverter, is it possible?

0 Answers  

---

what is mind in cable

0 Answers   BARC,

---

Please give me a erda placement paper

0 Answers  

---