draw the block diagram of fire alarm?

0 Answers  

---

When geneartor is running in poor lagging side power factor its excitation current increases then it is running in improved lagging side.Kindly tell me when gen is running in leading side what will happen

3 Answers  

---

how many testing use in power transformer?tell equipment names?

2 Answers   ABB, Electrical,

---

What is speed mode?

0 Answers  

---

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

1 Answers  

---

---

Why power genaration in India is at 50HZ while America its 60HZ

0 Answers   TATA,

---

If we touch the Capacitor terminals you feel shock after the capacitor was put in operation and not in case of inductor though both are energy storage elements.why?

4 Answers   HAL,

---

if transformer core is made of copper instead of steel which losses will increase..please explain

5 Answers   Bhel,

---

Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

0 Answers  

---

if an induction motor is operated at unity power factor what will happen? will motor run or not? kindly describe a logical answer?

2 Answers  

---

why induction motor's p.f 0.8

0 Answers   Suzlon,

---

why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 Answers  

---