Answer / madhusmaya sahu

Because when short circuit the excess current flow first through big &longest pin into the earth

Answer / harishdarade563

earthing of 3 pin top is made thick and long compared to the phase and neutral pin because resistance of a conductor depends on its length and area.
R=(roh*l/A).
as resistance is inversely proportional to its area,to make low resistance path area should be more.So because to flow earthing current easily pin is made thick and long.

Answer / rishikesh borse

The longest pin is of earthing

how dg's working of 1000kva.

1 Answers  

---

Slipring moter find external resistance

1 Answers  

---

What is Electrical Engineering?

13 Answers   L&T, NTPC, Wockhardt,

---

what about the power of wattmeter at starting and loding?

0 Answers   TATA,

---

how to find the Motor,s insulation Power?

0 Answers   Gourmet Group,

---

Difference between induction motor and synchronous motor? i Think Synchronous motors operate at synchronous speed (RPM=120f/p) while induction motors operate at less than synchronous speed (RPM=120f/p – slip). Slip is nearly zero at zero load torque and increases as load torque increases am a right pls guide & send Other Comments

5 Answers   Jindal,

---

what is stper motor

0 Answers   Bhel, WAPDA Water and Power Development Authority,

---

what is the full form of FRL (3/20,7/20 EARTH WIRE)..????

3 Answers   Aster, Divis Laboratories, FRL, Gasco,

---

suppose generator rating is 50 kw,load is 25 kw,hw much d generator ll generate?what about d remainin power?

2 Answers   NHPC,

---

What is the bundle conductor?

0 Answers  

---

A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

---

How to do stting of vl250 siemens MCCB

0 Answers   Qatar Steel,

---