what is the working principle of induction motor

2 Answers  

---

in an open circuit. test there is no load curent.. but secondary. ia open then no urrent have to flow but there a smaller current flows why?

4 Answers   Rubber Park,

---

How will you explain transformer action in case of 3-phase induction motor?

4 Answers  

---

Resistor switching is used in which type Circuit Breaker ? a) oil filled CB b) Air blast CB c) Gas filled CB

11 Answers   Engineers India Limited, wbsedcl,

---

what is the term of desruptive voltage

5 Answers   Bhel, Energy Infratech,

---

hello if any one have papers vof hpcl or sail, plz send me

0 Answers  

---

What is rms value wher it is used??????????

1 Answers  

---

How does the phase sequence controller works, how it identifies the phases? confirm working principle

0 Answers  

---

WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT

2 Answers   DRDO,

---

what is positive , negative & zero equivalent system resistance

0 Answers  

---

Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

0 Answers   ABB,

---

what is rotatng magnetic field in case of three or multiple phase alternating current machines???

1 Answers   NHPC,

---