To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?

4 Answers  

---

What do you mean by screen of power cables?

0 Answers  

---

an electric bulb is connected on a holder. one end of the wire is connected to the phase and the remaining one connected to earth instead of neutral. the bulb will glow or not? if yes then what is the need of neutral?

7 Answers  

---

Why VCB and SF6 breakers to be used in HT used by cant ACB of higher rating to be used for 11kv and 33kv.

8 Answers   TCS,

---

In Ferranti effect,Receiving end voltage is greater than sending voltage,why? can anybody tell me the answer

15 Answers   Engineers India Limited,

---

---

how speed control of induction motor?

4 Answers   DVC,

---

After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.

2 Answers   Thermax,

---

how can we connect a distance relay to CT core that is for backup protection or metering?

1 Answers  

---

i need to calulate the cable size when watts are mentaind wat z the formula

1 Answers  

---

What is the instrument to check the rotating diode fuse of alternator in running conditions?

0 Answers  

---

how we select ac fuse rating of an power inverter???

0 Answers   Simco,

---

What is meant by time harmonics and space harmonics?

0 Answers  

---