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

If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

---

control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 Answers  

---

what is maximum or Threshold value of current 7 voltage that a common man can withstand

1 Answers  

---

as per IE stranded what is max voltage between neutral to earth. 100 kva transformer neutral solid earth. min and max values i need to ans for RTI question

2 Answers  

---

What is meant by harmonic distortion?

0 Answers  

---

What will be the size of cable required for 5.5 KW motor ( Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

2 Answers  

---

What are the methods used to improve powerfactor ?

6 Answers  

---

what is the use of neutral displacement relay

1 Answers   OCL,

---

considering the 3phase and single phase ac system the load applied and the volage given is same...will the current differs for both the cases are it wil remain same?

5 Answers  

---

The armature of shunt dc motor has 0.8ohm resistance and motor is to run on 120V circuit.If motor is suddenly thrown on circuit while armature at standstill then current drawn by motor will be??Also back emf in normal running is 110V

2 Answers  

---

what is difference betwen genrator and alternator?

3 Answers   Tanfac,

---

Enlist four components of electrive drives.

0 Answers  

---