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LINER AS.- 4415763 - Caterpillar



4415763 LINER AS.- Caterpillar parts LINER
Rating:
26
Alternative (cross code) number:
CA4415763
441-5763
4415763
Caterpillar 4415763 LINER AS.-

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Illustration 1 g00570897
Generator StatorConstruction Of The Rotor
The rotor consists of the following parts:
shaft
poles
windings
fansThe shaft is machined from steel stock or the shaft is made from forged steel.
Illustration 2 g00570974
Generator RotorThe poles are made of laminations that are held together with rivets or bolts. Damper bars are inserted below the surface of the pole's face. These bars are welded to end rings or these bars are welded to end plates.The field windings are made up of insulated copper wire. These windings are wound on the laminated poles. Damper bars are inserted below the surface of the pole's face. These bars are brazed to conductive end plates. The entire assembly is thenvacuum pressure impregnated with 100% epoxy resin. The rotor assembly is shrunk and keyed on the shaft. The rotor is dynamically balanced to very precise limits. This balancing ensures compliance to NEMA and IEC standards. These limits also ensure a long bearing life. The fan is mounted on the drive end of a shaft. Also, the fan is dynamically balanced.Rotating Field Assembly
Illustration 3 g00875256
SR4 HV Rotating Field Assembly (1) Pilot Exciter Field (Permanent magnet) (2) Exciter Armature (Rotor) (3) Bearing (Opposite drive end) (4) Main Field (5) Shaft (6) Rectifiers (7) Bearing (Drive end)The components of the Rotating Field Assembly (RFA) attach to the rotor shaft (5). The rotor shaft is supported by the following two bearings: opposite drive end (3) and drive end (7).
Illustration 4 g00584773
SR4B HV Rotating Field Assembly (1) Bearing (Opposite drive end) (2) Shaft (3) Main Field (4) Fan (5) Coupling hub (6) Bearing (Drive end)The components of the Rotating Field Assembly (RFA) attach to the rotor shaft (2). The rotor shaft is supported by the following two bearings: opposite drive end (1) and drive end (6) .Brushless Exciter
The brushless exciter is an inverted synchronous AC generator. The field windings are stationary. The three-phase armature windings rotate with the generator's rotor. A full-wave rectifier bridge rectifies the AC output to a DC output. The exciter armature is built of laminations. These laminations are riveted together under pressure. A three-phase winding is inserted in the slots. The entire assembly is vacuum pressure impregnated with 100% epoxy resin. The exciter armature is pressed on a tube and keyed in position on the shaft.A three-phase full-wave rectifier is made of three forward and three reverse diodes. These diodes are mounted on two separate rings. The rings act as negative heat sinks and positive heat sinks. The rectifier assembly is keyed on the same tubing as the exciter armature. The exciter armature and rectifier assembly are dynamically balanced. The sleeve tubing is keyed on the main rotor shaft.
Illustration 5 g00570361
Brushless Excitation System The exciter stator is built of laminations that are stacked under pressure and welded. Field windings are inserted. The entire assembly is vacuum pressure impregnated with 100% epoxy resin. The stator is mounted on the bearing bracket (end bell). Permanent Magnet Generator
The permanent magnet generator (PMG) provides power to the voltage regulator under all operating conditions. This


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