0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is pole core?
A pole core is a word often used in dc machines which provides space for field winding
Why alternators constructed with stationary Ac winding and rotating pole?
To eliminate the requirement for slip rings and brushes to handle the large voltage/current involved.
Why armature winding resistance is less than field winding resistance?
An 'armature winding' is the rotor winding, and the 'field winding' is the stator winding.
What are some characteristics for a shaded pole motor?
The rotor is made up of laminated steel discs that are pressed on to a common shaft. This shaft has bearings mounted on either end which allows the rotor to spin within the frame of the motor. The shorting bars on the rotor are usually made of aluminium.
What is winding and rewinding?
Winding: To wind the coils into the slots on the stator or rotor and connecting them up to form a winding. Re-winding. Is to remove the old winding and doing what I explained above.
What is concentrated winding?
a winding is called concentrated winding when the number of slots per pole per phase is fractional
What is an amortisseur winding?
An amortisseur winding is a squirrel cage winding placed near the surface of the pole faces of a synchronous motor.
What is pole core?
A pole core is a word often used in dc machines which provides space for field winding
What is the difference between concentrated and distributed winding?
concentrated winding:-slots/pole/pshas=1 , i.e equal to 1 distributed winding:slots/pole/phase>1 , i.e grater than 1
How many parallel paths in a wave winding of a 4 pole dc motor?
2
What song has the lyrics i see you winding and grinding up on that pole?
"i wanna love you" by akon
Explain fractional slot winding and related calculations?
here spp(slots per pole per phase)is a frictional no. it is a double layer winding while m=s/3p is non integer in a frictional slot winding.
How induction motor is made self starting?
just put a auxilari winding on the rotor (in the salient pole)..
How many poles are there respectively on the running and the starting winding of an 8 pole splits phase motor?
32 poles
When will a synchornous motor acts as an induction motor?
If there is an extra winding called the "damper winding" in addition to the field winding.Then the synchronous motor will operate as a squirrel cage induction motor.Whats is a damper winding ?A damper winding is made up of copper bars which are placed in the slots in the pole faces of the rotor.These are short circuited with the help of end rings in a squirrel cage induction motor.
Why alternators constructed with stationary Ac winding and rotating pole?
To eliminate the requirement for slip rings and brushes to handle the large voltage/current involved.
How is three phase12 slots 4-pole winding designed?
Total slots per phase =12/3=4 slots to be occupied. Slots per pole per phase = 12/(3*4)=1 hence for A phase, the slots to be occupied are 1,4,7,10;for B phase, the slots to be occupied are 5,8,11,2;for C phase, the slots to be occupied are 9,12,3,6 and winding to we wave type.
