Answer / shareef m. m. el-shekshaky

Electrical machines can be rotating or static.
Rotating machines such as motors or generators and they have a stationary part called stator and a rotating part called rotor which has shaft and bearings helping to rotate inside the stator keeping an air gap in between.
Stationary machines; yes machines constructed mainly from Laminated iron core and windings which are all stationary; not designed to move or rotate.

which motor is used in electric train...???????

27 Answers   ESPL, IOCL,

---

What is Transformer?

23 Answers   HSL,

---

1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

---

I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

0 Answers   Vadilal,

---

use of choke in APFC panels

2 Answers   Kemrock,

---

---

Generator protection &generator test

1 Answers  

---

How to calculate voltage drop loss in HT 11000 Volts XLPE Aluminium conductor cable. Any specific formula or Thumb rule

2 Answers  

---

1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

---

how much capacity(rating) of generator required to operate a load of 100kv.

6 Answers   DSC,

---

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

2 Answers   Sun Pharma,

---

how i calculate the size in mm of the LT 4 core cable for 100 HP inductive motor pump

1 Answers  

---

Full form of bdv test?

2 Answers   Hi Tech Transpower,

---