Answer / asdrfdg

A Synchronous machine can generate electricity even if the speed of the shaft is less than synchronous speed. But an induction machine starts generating only when its shaft is rotated with a speed greater than synchronous speed.

What makes the difference in these two types of machines, that one machine can generate electricity at any speed of shaft(but frequency of output power varies with the variation of speed of shaft), whereas the other one (induction machine) doesn't give any output power before a certain value of speed

from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

---

what is difference between elr and R eartl realy.

0 Answers  

---

What is difference between isolator and circuit breaker?

0 Answers  

---

plz tell me in my que,how to connect thw electrical wirening in house?

1 Answers  

---

Why squirrel cage motor can only use with low starting loads ?

0 Answers   BEC,

---

why in large rating C.T.s equipotential wires are used?

2 Answers   Essar,

---

how to select battery for 15 KVA UPS with formula

0 Answers  

---

how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

0 Answers  

---

What is the Difference Between MCCB & ACB & VCB

4 Answers   ABB,

---

why can tv operate at low voltage??

2 Answers  

---

What is SFU ?

4 Answers  

---

What is the difference between MCB and Earth MCB? What is the working principal of MCB?

2 Answers  

---