Answer / raovasuki17

first of all you have to use multimeter to identify the
coil teminals. segregate it in two lines as 2 x 3 . ie top
3 terminals and bottom 3 terminals.

Next take a Small DC power supply with 3 volt and a
milliampere meter( DC ). connect this voltage to one of the
coils with milliampere meter in series( Milliampere meter
should be of center zero type ) close the supply voltage to
the coil with make and break it immediately. observe the
deflection whether it is on forward side or reverse side.
and mark one terminal for whcih +ve suplly is connected as
Start and the other ( _ ve )end as Finish. do this
process for other two coils also. once you know the top 3
start points and finish points of the coil. you are almost
there. now you short ckt all finish ends. you are left
with 3 start terminals. ie your STAR connection.

For Delta connection connect finish end of the first coil
to start end of the second coil, finish end of second coil
to start end of third coil and finish end of 3third coil
to start end of first coil. now you have theree junctions.
now your connection is in Delta mode.

How we can convert H.P into KW or Vice versa

11 Answers   Suzlon,

---

The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

---

what is pure resistive circuit and pure inductive circuit

1 Answers  

---

how to calculate diesel consumption of a D.G.Set?

4 Answers  

---

What is main difference between earthing and neutral grounding?

3 Answers   Jindal,

---

What are the Full Forms of TVM, MTL, CVT ?

0 Answers  

---

what mean by machin

5 Answers  

---

Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

0 Answers  

---

Why transformer is not rotating?

20 Answers   BARC, Nerolac,

---

we touch other end of the tester supply, why do not get shock?

7 Answers   L&T,

---

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

2 Answers  

---

I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 Answers   ABB,

---