Answer / kalidass

No need to use neutral connection in three phase motor
connection.
1. If the motor conneciton is in Delta only three phase can
connect.
2. If the motor connection is in Star the star point
(shoted point ) act as a neutral. (krichaffs current law)
So no need to connect the neutral.

What are types of losses in the Transmisson Lines ?

4 Answers   GE,

---

wat is d diffr btw shunt coil and trip coil in VCB?

0 Answers   NTPC,

---

What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

0 Answers   SCS,

---

Explain What will happen when direction of field current is changed (i.e, field excitation is reversed) in the following machines? 1) Alternator 2) Synchronous Motor 3) D.C Generator ( Shunt or Seies ) 4) D.C Motor ( Shunt or Seies )

3 Answers   NTPC, Transco,

---

How to calcluate the current by means wires/cables in square mm

2 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  

---

how to erect roof control panel?

0 Answers  

---

What is the impedence of Transformer?

2 Answers  

---

How star and delta connections inherently eliminate triplend harmonics?

1 Answers   Blue Star,

---

I have lowered a submersible pump having 100 LPM discharge & 130 Mts. Head, 15 HP rating on borewell. After lowering 108 Meters, It is taking 39 amps & blowing the fuse. Can someone put light what is the cause behind it ?

1 Answers  

---

Classify driling machines.

0 Answers   Essar,

---

i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

0 Answers  

---