why do we generate sinusoidal ac?can we generate some other waveforms by alternators?

11 Answers   Siemens,

---

primary of transformer connected to Dc supply in series with switch, and secondary connected on ammeter, what happens when swith On and OFF. (or) if continuously On and OFF

9 Answers  

---

What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

0 Answers  

---

What is the application of Nitrogen Injection system in Transformer Protection?

1 Answers   HPL,

---

Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

0 Answers  

---

3ph line voltage 220v, how can run a 220v single ph motor or Light?

2 Answers  

---

when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers  

---

why humming sound occured in h HT transmission line

3 Answers  

---

how induction generator works?

3 Answers  

---

why d.c. supply is given to the primary side of generator?

4 Answers  

---

What is meant by regenerative braking?

5 Answers  

---

An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor frequency at maximum torque point is A 3.33% B 4.44% C 5.55% D 6.66%

1 Answers  

---