A DC Generator is an electrical machine which is convert mechanical energy (power) into the electrical energy (power). This energy conversion is based on dynamically induced emf.
The mainly 4 parts of dc machine is described below.
1.
Stator
a. yoke
b. pole shoe
c. field winding
d. end plates
2. Armature
4. Brush Gear
1.
Stator:
a.
Yoke
: The
outer frame of a dc machine is called yoke. It serves double purpose:
It
is made up by cast iron or steel.
b.
Pole
body and Pole shoe:
The magnetic pole consist two parts, one is pole body and second is pole shoe who is fastened on yoke by screws. The pole core itself may be soild piece made out of either cast iron and cast steel but the pole is laminated. The thickness of laminations varies from 1 mm to 1.5 mm.
the poles shoe serves two purpose:
a) They support field coils (exciting coils).
b) Spread out the flux in the air gap uniformly.
The magnetic pole consist two parts, one is pole body and second is pole shoe who is fastened on yoke by screws. The pole core itself may be soild piece made out of either cast iron and cast steel but the pole is laminated. The thickness of laminations varies from 1 mm to 1.5 mm.
the poles shoe serves two purpose:
a) They support field coils (exciting coils).
b) Spread out the flux in the air gap uniformly.
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