Answer / sayyid ahamed pm

at the time of opening of cb more current and high voltages are causes to produce high arc due to air and moister are help to produce fire

Answer / mostafaghodrat

vaciuum c.b is advanced.

At the moment arc, and the keying is more effective.
air c.b is more expensive.

Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

0 Answers  

---

Why reverse relay used

2 Answers   cpgn,

---

explain Xmer

2 Answers  

---

Why do we will ground the positive terminal in electrostatic precipitator

1 Answers   JSW,

---

what is meant by dielectirc medium? what is the dielectirc value of air and water???

2 Answers   ISRO,

---

what are thw types of turbines use in biogas plant?

0 Answers  

---

what is the difference between servo voltage stabilizer and general voltage stabilizer?

1 Answers  

---

sir , what happen if we decrease ( approx 3 inch ) the lenth of shaft in 110KW Induction , three phase motor. actually a 110KW motor is couppled with star couplling to 120TR compressor. When we doing maintenance in compressor it is required to skid the motor backword and resulting dis- alightnment . so we want to change the tyre coupling in place of existing coupling. so it is required to cut off the rotor aprox 3 inch form driving side.

2 Answers  

---

What is the difference between electric and electronic circuits?

11 Answers  

---

Full form of bdv test?

2 Answers   Hi Tech Transpower,

---

why we r used APFC Panel in industrial area.when P.F. low then wat will be the effect in our system?

10 Answers   ABB, Georgio Rocks, Piramal Healthcare, Zenith Engineering Corporation,

---

Do you have any P.L.C in your organization?

12 Answers  

---