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Form-wound selalu dibandingkan dengan Random winding

definisi
http://www.answers.com/topic/form-wound-coil?cat=technology

form-wound coil (′förm ¦wau̇nd ′köil)

(electricity) Armature coil that is formed or shaped over a fixture before being placed on the armature of a motor or generator.

dan

definisi
http://www.answers.com/random+winding?cat=technology

random winding (′ran·dəm ′wīnd·iŋ)
(electricity) A coil winding in which the turns are positioned haphazardly rather than in layers.


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petronila (Electrical) 23 Dec 05 15:53
Hello Cvirgil,

Form Wound Coil is a coil made with SQUARE or RECTANGULAR wire.

Random Coils is a coil made with ROUND wire.

The main difference with this two winding types is the wire type.
In form windings you most insulate all coil wrapping mica and glass tape arround all coils and for large machines you could change a part of the winding in some failure cases, in random windings you insulate the slots and place insulation between each end coil.
I would prefer the form wound coils due to this winding will last more time in operation and for design point you can use high volt/turn ratio, also the mechanicall stress due to magnetical forces is avoided due to the coils will fit OK on the slot.

Regards,

petronila