Nidec 4P10, Инструкция по эксплуатации

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Page 9
Construction and Operating
Principles
Enclosures
The standard design is open drip proof. The following options may
apply to your generator:
• Air filtered
• Air-to-air heat exchanger cooled (TEAAC/CACA)
• Air-to-water heat exchanger cooled (TEWAC/CACA)
• Weather Protected II
• IP 22, IP 23, IP 25, IP 44, IP54
• Sealed windings
See the drawings included in the drawing section of your manual
package for details on your generator.
Stator
The stator consists of the supporting frame, core, and armature
windings.
The stator core is made from laminations, thin sheets of electrical steel,
which are stacked and held in place by steel end rings and support
bars. The rings and bars are welded to or are part of the steel frame.
Base mounting plates are welded to the bottom of the frame. The base
mounting plates allow the assembly to be mounted on the genset base.
Some stators are made of rolled steel with foot gussets. See Figure 5.
Figure 5 Generator Frame
The windings (coils) are constructed of layered and insulated copper
wire. The coils are inserted in the core slots, connected together, and
the entire assembly is vacuum-pressure impregnated with resin. Stator
leads terminate in standard connection lug or strap terminals for ease
of connection to the load.