Answer / himadri de

Neutral Grounding Resistor (NGR) is simple resistance connected in series between the neutral point of transformer and Earthing pit/point of neutral conductor.
NGR reduce the problems such as insulation breakdown caused by transient over voltage produce by arcing ground fault in underground system and damage to motors and switch gear caused by arcing in solidly grounded system.

Answer / r.sateesh kumar

Neutral is nothing but return path ground that is called neutral .

Answer / r.sateesh kumar

Netrual is nothing but return path to ground that is called neutral

Why the transformers making noise?

2 Answers   L&T,

---

one split ac how can told of this ac which Tr tell me us

0 Answers   Wipro,

---

what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

1 Answers   NCC,

---

How many input terminal of single phase transformer.which is use for rural power distribution.

1 Answers   RMSI,

---

single phase for 230 then why three phase are 440 volt

4 Answers   ACIL,

---

---

I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 Answers  

---

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

0 Answers  

---

what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

---

how much Hp motor is required for water suction pump in home uses ?

1 Answers  

---

LT, CC and LMU installed at both the outgoing circuits of 132 kv double ckt transmissio what its means ? and what are there use ?

1 Answers  

---

why we use 630mm single core cable for transformer secondary side and why two neutral cable

0 Answers   Technicare,

---

difference between the applicability of nortons and thevenin theorem

0 Answers  

---