Answer / milinda4p

It is simply a 3 phase wound rotor induction motor which is operated at locked rotor condition. Its rotor and stator winding terminal has come out where we can make external connections.
We can connect a 3 phase power supply side to the stator and observe the waveform at other side (rotor) (or vice versa).
There if we change the rotor position manually by rotating we can observe that the  phase angle difference between stator voltage and rotor voltage is increasing or decreasing (depending on the direction of rotation).
In the technical term this is called as "synchro differential transmitter"

Answer / praveen reddy.r

Transformer used to create a phase angle of alpha at
secondary side for controlling power flow in a parallel line
of transmission system,to avoid uneven loading in
transmission systems because of different line impedance's.

EARTH AND NEUTRAL ARE JOINTED OR NOT?

7 Answers  

---

Describe Non I.S. Earth System and why is it used?

0 Answers   KPJV,

---

In HT overhead line why should provide top conducter which is not connected whith insulater..?

3 Answers   Essar,

---

Hi, what is the temp of bus bar.

1 Answers  

---

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

0 Answers  

---

why power not passes in plastic and rubber material

0 Answers   GPG,

---

A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

0 Answers   Ispat, Red Bull,

---

What is the main difference between power transformer and Distribution transformer?

9 Answers   APTransco, Bhel, NTPC,

---

Compare salient pole and Hndrical rotor machines.

1 Answers  

---

What is a soft start?

4 Answers  

---

What is expand formation of AYFY cable

2 Answers   HP,

---

The potential difference between a phase and neutral is 230v , but the potential difference between two phases is 400v. why?

4 Answers   HCL,

---