Why material of brush is carbon in motors why not other material.

5 Answers   NTPC,

---

What are the various methods for effecive earthing in a factory in a rocky terrain, where soil resistivity is extraordinarily high? The usual method of 3 m deep earth pits is not serving the purpose.

4 Answers  

---

33kv substation lay out details & line to line & line to earth measurements

0 Answers  

---

why is corona loss greater in a stranded conductor as compared to a solid conductor ?

2 Answers  

---

sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

0 Answers   HPCL,

---

---

why do we connect droop ct{in gensets}in y_phase only

2 Answers  

---

What is the si unit

2 Answers  

---

what is the VA(Volt-amphere)? define with calculation?

0 Answers  

---

how we can know which is Lv side and HV side of transformer by just seeing it?

7 Answers  

---

What is the purpose of SOTF being used inspite of distance Protection given?

7 Answers   Alstom,

---

Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

0 Answers  

---

Why need 3phase machine double earthing?

0 Answers  

---