Nidec 22765-01, Руководство пользователя

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Excitation system functional overview: Exciter field control is
established by the strength of the exciter field current developed by
the voltage regulator system. The DC voltage and current levels of the
exciter field signal from the voltage regulator varies depending upon
the generator output voltage and the loading of the output lines (see
Figure 1).
Optional PMG System
The permanent magnet generator (PMG) system consists of the PMG
stator and PMG rotor.
The PMG stator is a stationary armature and is located within the stator
assembly that also contains the exciter stator or is a separate stator
mounted next to the exciter stator. The PMG stator consists of steel
laminations. The laminations are held in place by steel compression
rings and are welded to the frame bars of the exciter-PMG frame.
The PMG windings are placed in slots in the laminations. Insulating
wedges are inserted at the top of each slot to hold the coils in position.
The PMG rotor consists of rectangular permanent magnets and cast
pole tips secured to a steel hub with nonmagnetic stainless steel bolts.
The PMG rotor is keyed to the shaft and secured with a nut and lock
washer.
PMG system overview: The PMG system functions as a pilot exciter,
providing power to the automatic voltage regulator power supply. The
PMG is an AC generator that uses permanent magnets in the rotor
instead of electromagnets to provide the magnetic field (see Figure 1).
Other Options
Other options include, but are not limited to, space heaters, filters, and
temperature sensing devices.