How can I calculate the require lumen of a room. If I use Tube Light (40 W), Or 100 W incandescent lamp. Please give detail answer.

1 Answers  

---

What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

1 Answers   NTPC,

---

why rating in KVA and KVAR?

4 Answers  

---

what is AVR and tell principle and working?

10 Answers   ITC Infotech, MIOT Hospitals, YCC,

---

what do u understand from filter factor of reactor?

0 Answers  

---

Define thermal resistance in the context of power amplifier.

0 Answers  

---

I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 Answers  

---

what are the uses and applications of rectifiers?

3 Answers  

---

what is ground clearence in transmission system.is it varies wit conductor size,height of poles,span.

1 Answers  

---

What is NDR in HT capacitor panels.

2 Answers  

---

A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____

0 Answers   Ecil, L&T,

---

how many testing is necessary for 27 MVA transformer?

1 Answers  

---