Answer / prabhakar jha

duty cycle is a torque vs time veriation..generally we r using 10 duty cycle.

why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

---

if we give DC suply to the AC motor what hapen

5 Answers   TATA,

---

can we use transformer for 70 Hz?

6 Answers  

---

how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 Answers  

---

What is the important precuations need tocarried out while working with Electrolite in Battery PM?

0 Answers  

---

What is CCT (Correlated Color Temperature) ?

0 Answers  

---

What is the diffrence between ofline ups and online ups?

3 Answers   Intel,

---

Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?

0 Answers   Siemens,

---

what will happen if ac motor given dc supply?

1 Answers  

---

types of arc quenching methodes

2 Answers  

---

define stator,rotor,excitor,rotating rectifier in generator?

1 Answers   Saudi Oger,

---

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

0 Answers  

---