Answer / renish2905

Becuse of the fault current is very large and small time about 1 second or friction of second.in this time CB is activated nearly less than of second.and all about calcualtion to took fault current time 1sec for easy to calculation.

Answer / asivasankar2k

As per my view, All equipment made to withstand 1sec only

Answer / adnan

Fault current is too large, about 7 times the normal current. If this current flows for longer time, it will burn all the equipments. So, breakers are designed to operate in 0.3 sec, 0.5 sec time if fault is not cleared in this time.
So such large current, even 1 sec is too long time.

rajha power sector details

0 Answers  

---

Transformer/insulating oil tester(BDV tester)

1 Answers  

---

what is mean by dry frequency

0 Answers   Siemens, TCS,

---

what is RMU ?

26 Answers   MacLellan, Shalaka Infra Tech,

---

can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

0 Answers  

---

improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 Answers  

---

Can anyone explain, How will get positive to ground and negative to ground reference voltage in dc system

1 Answers   NCC,

---

What is the work of ACCP in LT panel?

5 Answers   Juniper Networks,

---

ho w to make Incident and accident reporting

1 Answers  

---

WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

0 Answers   ACC,

---

can some one clearly explain why -48 volt DC use in telecom site????

0 Answers  

---

What is distance protection relay? where & why we use this relay?

2 Answers   Siemens, UltraTech, Voltech,

---