Answer / k

use IS 3043

earthing cond size in sq mm S = A * sqrt(t)/k

A = fault current in amps
k = factor given in IS

refer website : www.jptechnosoft.com

how much speed will trawiling current

3 Answers   TCS,

---

the current which flows during lightening is ac or dc,,,,,,,,,,, WHY

6 Answers  

---

why the rotor current becomes in steady state during high slip region? please verify with equations.

0 Answers  

---

what are the advantages of having high voltage in transmission lines?

5 Answers  

---

What is R/X ratio? I have heard that this ratio is higher in a radial distribution system.Why is it so? I would appreciate a word. Thank you

1 Answers   Power Grid, Vignan University,

---

What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

0 Answers   Shasun Chemicals,

---

type of transformer

3 Answers  

---

May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

0 Answers  

---

How much dc volt applied in cathodic protection system?

0 Answers  

---

what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

---

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

0 Answers  

---

HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

0 Answers  

---