Answer / kj

This is done by taking a wire from each end of each winding
to the starter. When starting one end of each winding is
connected to a separate phase and the other ends are
connected together to form a star point.
When changing to delat the ends with the starpoint are
switched open and then switched to a phase each.
Having the correct phases on each end of the windings is
important otherwise the direction of rotation can be
reversed when changing to from star to delta.

What is ELR, and where it is used ?

7 Answers   KSEB,

---

What is the meaning of STAR POINT? Why this important in CT and VT?

2 Answers   L&T,

---

If I want to use capacitor banks at HT (11 KV) side for maintaining power factor then which type of capacitor should I use? Plz give me the specification?? (I am using 1250 Kva transformer (11 KV/433V)).

2 Answers  

---

how the find ct mf and mf roll in metering

1 Answers  

---

Is there any Flood lighting system which produces more light (More power consumption 1000W,400W etc.,), white light and restart immediately after power restoration ?

1 Answers  

---

Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 Answers  

---

why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

0 Answers   Government, PSU,

---

advantages of vvvf drives over non vvvf drives for EOT cranes

2 Answers  

---

what is LOS(line of sight)?

1 Answers  

---

Interchange 7 and 6 ,÷and× 36×7+4-7×3

1 Answers  

---

how to combine two linear transformers...............

1 Answers  

---

why there is a fault occurs, if a phase wire touches ground.. and the fault not occurs when we connect a bulb between phase and ground..??

1 Answers  

---