Answer / c.b.t.

26.2kA am I right?

Answer / ranjan maithan

fault level depends on your system's percetage impedance.In
general practice we are using 28KA for 3 secs. or 40KA for
3 secs.

Answer / guest

c.b.t, can u plz exlain how u got tat answer,coz to b frank
i donno how to calculate the fault level of an electrical
system.

Answer / genau

Mr. Ranjan is correct!!
Fault level of the system will depend on the system impedance.

for calculation of fault level, calculate the fault impedance and hence you can calculate fault current from system voltage and fault impedance. product of two gives fault level in VA (Generally specified in MVA)

What is Load sharing of Transformer ?

0 Answers  

---

use of choke in APFC panels

2 Answers   Kemrock,

---

why we ground the scondary of current transformer.

4 Answers  

---

THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS

7 Answers   Chartered Accountant,

---

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

0 Answers   Kaytech,

---

---

can SMPS work in DC supply ?

10 Answers   HCL, IBM, Reliance,

---

What is the difference between LT & HT Cable

4 Answers   ETA,

---

Generally at what power factor the electronic equipments like computer, TV, EPABX etc.,operates. Please tell me.

1 Answers   HAL,

---

Wtat is vaccum currcuit breaker.define with cause of used.and where be use it Devise .

1 Answers  

---

why characteristics of overcurrent relay is time-->psm instead of time-->current?

0 Answers   ABB,

---

what is thermo stat, explain how its working?

1 Answers  

---

what is hormonics. how it is generated & what are the problem faced by that.

5 Answers   APC,

---