Cable entry
As customer required, cable entry to the terminal can be from the front, back, left, right or top of terminal box through drilled.

Degree of protection and cooling
The generators normally have degree of protection IP 23. With a fan at the drive end, it draws in cooling air from the non-drive end, passing it axially through the machine and discharging it at the drive end.

Bearings
The alternators up to 500KW employ with normal sealed rolling-contact bearings which no grease addition.

General Notes

All ratings are base in 40℃ ambient temperature at 1000m altitude in selection table.

Site altitude exceeds 1000m a.s.l.(ambient temperature 40℃)

Rotor
The rotor comprises a shaft, a magnet wheel carrying the excitation and damper windings, the exciter rotor and the rotating rectifier unit. The magnet wheel of the generator is of the salient-pole type.

Damper winding
The alternators incorporate a damper winding in order to ensure good parallel running with mains network and other machines. Inserted into the shoes of the poles are the bars of the damper winding which are connected together at each end of the poles to form a closed cage. This arrangement provides the alternator with excellent damping against the torsion vibration that occurs during changes in load and when running in parallel.

Power factor cos phi<0.8