why are use star delta startor.

4 Answers  

---

why we use 3 phase in our country?..why no 4,5 or 2??

2 Answers   Siemens,

---

what is servo motor principle? difference between induction motor & servo motor?

1 Answers  

---

what is LDR used in street light

2 Answers   Cipla, Ram Infotech, Wipro,

---

Why we say three phase voltage 440v.

2 Answers   VDP,

---

---

which electrical supply used for long distance traction 1.1-ph 22kv a.c 50hz 2.2-ph 22kv a.c 50 hz 3.dc vtg 4.1-ph 22kv 150 jhz

3 Answers   Power Grid,

---

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

0 Answers   Reliance, Southco Utility,

---

what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

0 Answers  

---

IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace.

1 Answers   Jindal,

---

what is the procedure for cable sizing or on what basis we will calculate the size of cable?????

6 Answers   ANG, Focus, Mecon,

---

why capacitor using the induction motor?

5 Answers  

---

How can we get electric power from lighting ?

3 Answers   TATA,

---