Answer / abishekmittal

In transmission lines, we can have different types of
protection like.
1. Distance protection
2. Back up distance
3. Cable differential protection
4. Line differential protection

Answer / er.s.ramkumar

Distance relay used for transmission line protection, this
relay operate when fault happend in the line.save the load
or other working equipments.

Answer / sindhu

in case any fault occurs in the transmission line, it is
used to isolate the healthy side from the faulty side i.e it
is used to protect the line from total damage.

Answer / karthi

in abnormal condition,fault current may be more, to isolate the fault current elemente from the system

what are the components of a start and stop motor control?

2 Answers  

---

what is method of dc current measurement

5 Answers  

---

Why reverse relay used

2 Answers   cpgn,

---

what is zero sequence curr ent ?

4 Answers  

---

lead acid battery electrolity?

2 Answers  

---

---

why transformers are sometimes kept on concrete benches..?

2 Answers  

---

we are operationing 3NOs 800 Kva generators by singronyus.specialey evening time our panel trip. the panel showing generator earth fault

4 Answers   RRB,

---

one split ac how can told of this ac which Tr tell me us

0 Answers   Wipro,

---

how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

0 Answers  

---

which is the best, A/C DRIVES or D/C DRIVES for cranes,...... ...and why......?

2 Answers   Alstom,

---

what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

4 Answers   HCL,

---

how to calculate the cable size depending on the transformer rating

2 Answers  

---