Answer / msivakailash85

earth is bypass of lekage current.in any equipment body
earth is important.in case donot done the body
earth,anybody touch the equipment lekage current pass
through body to earth.we get shock sometime cause danger
effect.

Answer / mallikarjuna reddy

in our electrical system body earthing plays vital role.
in our equipments if load unbalance or any leakage current
induces this current flows through the body of the
equipment.so in order to ground this currents we have to
connect the body to earth.

Answer / b.murali dhara babu

The potential equipment body some times rises to higher
value which is some times equal to the system
voltage .It is dangerous to the operating personal of the
equipment . Earthing of the equipment causes the protection
to act and isolates the faulty equipment from service .
Further it minimises the touch potential to the safe
value and helps the operating personal all times from
shocks while operating .

Answer / broader electrical

Let us consider an example of a transformer or a machine. Both system and body are provided with earth protection. Primary function of the body of any machine is to provide housing and support to internal part. If under any circumstances, live part inside of any machine touches the body, the body becomes live (starts carrying current) as it is made up from metal. Under this situation, it is necessary to provide a low resistance path to current and that is completed if body is earthed. If body of machine is not earthed and any human not wearing adequate insulating gloves/pad/shoes comes in contact with the body of the machine, human body will be a path for the flow of current and consequently, the human will be affected by flowing current through his/her body.

what is MAR

1 Answers   NCC,

---

battery dis charge condition long time condtion?

1 Answers  

---

How much should be the specific gravity of a DG set battery Electrolyte.

2 Answers  

---

How to calculate multiplying factor of dc energy meter

0 Answers  

---

what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

0 Answers   ABC,

---

why two over current realy used in vcb.

2 Answers   BSES, Wipro,

---

Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?

0 Answers  

---

what is the means of dedicate earthing?

2 Answers  

---

what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks

0 Answers   PCL,

---

What is differance betwwen Conventional MCC & Inteligent MCC?

2 Answers   Quantum, Siemens,

---

What is cp system and why is it required.?

1 Answers   Essar,

---

What is the formuala to calculate the rating of motor protection circuit breaker

0 Answers  

---