Answer / praful nandankar

Cylindrical poles have uniform air gap,small diameter and
long axial length. They are used for tubogenerators having
high rotor peripheral speed.On the other hand, salient
poles have minimum uniform reluctance along d-axis and
maximum reluctance along q-axis.They have non-uniform air
gap,larger diameter andsmall axial length. They are used
for hydrogenerators having small rotor peripheral speed.

Answer / icemmann.sk

Describe how a salient pole / projecting pole rotor
differs from a cylindrical rotor and state the
application of each rotor respectively

Answer / sayan

Cylindrical pole rotors are used in a place where rotational
speed is above 1000 rpm and below this we use Salient pole
Construction.

what is the principle of operation of tungstun bulb ??

0 Answers  

---

what is XLPE type cable

8 Answers   Areva,

---

During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?

4 Answers  

---

A 400KVA Transformer has 400Hz frequency.if frequency is changed to 50Hz,then what will be the new KVA rating?

2 Answers   ABC,

---

How to select the cable size for the given load ?Pls explain the Formulae

3 Answers  

---

what s a servo motor? how to control the servo motor? and its application, purpose of using?

2 Answers   Arabian Pipes,

---

how do you test the capacitor bank ?

12 Answers   Essar,

---

how can u do the earthing of an aeroplane?

5 Answers  

---

How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

0 Answers  

---

for a 11kv transmission line what capacity of CTs & PTs are required?

4 Answers  

---

What is the black star?

2 Answers  

---

why substation ratings are multiple of 11 means 11\33 kv substation

6 Answers  

---