Answer / s m

By making grid of individual pits all the Individual pits
are connected parallel to each other . This reduces the
Equivalent Resistance to less than 1 . Generally in 0.1 ohm
or 0.2 Ohm range only. So this is done to improve the
effectiveness of the Earthing system.

Answer / prasad

simple answer machine safety as well as man human safety....

Answer / deepak24

Grid earthing is the interconnection of all the equipments or machines in industry and earth wells by earth wires which protect the all system by any leakage of current. Also it protects from humen danger.

Answer / antarjyami behera

For protect switch gear equipment of grid .

why make protection 85% of winding?

1 Answers  

---

What is the formula to calculate the rating of a three phase air circuit breaker

0 Answers  

---

What is the estimated total hydropower potential of india?

0 Answers  

---

Who is the first Bangladeshi Everest climber? Where is his home district?

0 Answers  

---

whether energy meter is connected in series or parallel.why?

2 Answers   Encom,

---

---

define briefly the function of an ac electric generator (alternator)?

1 Answers  

---

Why alternators are rated in KVA?

12 Answers  

---

define reactive power?

3 Answers   Alstom, TATA, TCS,

---

how much importance of power factor in single phase. is it,s importance is quiet same as like three phase power system.

1 Answers  

---

Why are the cores of large transformers built up of circular transactions ?

0 Answers  

---

which seven wonders are selected in india in 2008-2009

2 Answers  

---

How much amps carry in single phase R-phase,in D63A 4-pole MCB

1 Answers   TCS,

---