why we use ac?why we use dc? why we we cannot use only ac/dc for all the applications?what happen if we use?

0 Answers  

---

what is the difference between transformer and amplifier ??

5 Answers  

---

Single line diagram for dbb (double bus bar)system.

0 Answers   KSEB, L&T, Siemens,

---

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

---

what is difference between vcb and mccb

4 Answers   APTransco,

---

What is principle of Floroscent tube 36watt.

0 Answers   Diamiller, NDPL, Trident Hilton,

---

What is the practical way to calculate the cable size for known ampere load?

0 Answers  

---

hi this toufik here. i am doing my b.e.degree.now i am in final year and supposed to do a project in this year so i thinking to control the buchholz relay using software base means checking the status of transformer oil using microcontroler, plc or scada. so can i do so...??? alz suggest me...

2 Answers  

---

Why synchronous motor runs at a fixed speed? what is the name of that fixed speed?

4 Answers  

---

what is basic difference betmeen normal & flame proof motor??

0 Answers   Dynamics,

---

What is the function of the auto reclosure relay?

1 Answers  

---

In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil

0 Answers  

---