What is power factor? Whether it should be high or low ? why?

9 Answers  

---

what is the current setting for different relay protection for transformer .

0 Answers   Crompton Greaves,

---

why current flow to the opposite direction of flow of electrons???????????

0 Answers   Bhel,

---

How Earthing is prevents shock?Explain

4 Answers  

---

why we can not use dc in our country( INDIA)

5 Answers  

---

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

0 Answers   MCB,

---

can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

1 Answers   RVNL,

---

If the load is 10Kw and power factor has to improve from 0.5 to 0.8,how can we select the capacitor rating accordingly.Illustrate by showing formula?

9 Answers  

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---

Difference between a pilot wire and a normal conductor?

0 Answers   United Arab Aluminum Company,

---

How to set a Zone 1 distance relay for distribution feeder?

0 Answers   Schweitzer Engineering,

---

my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

---