Answer Posted / a.senthil kumar

earth is more important to protect you, so we should be
provide the low resistance path for that.

already we very well known that the area is inversly
proportional to the reistance (R=p*l/a here p=specific
resistance(row), l= length, a = area)

from above
if area increased the resistance is decreased. it cause
the earth is bigger than other.

if area of earth pin small it offerd high resistance path
for earth. it cause we r not get earth easily

r u got it?

i think that it is correct answer for ur question up to my
knowldge

-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

2181

---

harmonics filter

2001

---

Mention the disadvantages of low power factor?

1181

---

Why Ac Systems Are Preferred Over Dc Systems?

1353

---

what is load despatching

2291

---

On Which Pressure PRV is operated.

1791

---

WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT

2411

---

What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

2997

---

what is lumped and distributed elements?

2001

---

what are types of encoder

1915

---

how to calculate transformer turn primary & secondary side 11kv to 420v

2251

---

I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

2236

---

What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

1723

---

Advantage of LT panel vs HT panel

2985

---

why are distributed windings generally used in alternators?

2770

---