THREE PHASE GENERATORS




CONSTRUCTION DETAILS
Housing in aluminium extruded section into which a stator pack is inserted.
Such stator pack is obtained from low loss magnetic sheet.
Front and rear shields are in die-casting aluminium alloy with ventilation opening protected by heat resistant mesh.
Rotor in magnetic sheet slotted to protect the rotor winding from overspeed .
Shaft in C40 steel, self-lubricated bearing with double seal protection (2RS).
Axial ventilation with polyamide fan - radial blades.
Accurate machining of coupling elements guarantees an easy and sure assembly.
Generators are manufactured with shapes BR/B9 and B3/B14 with dimensions and coupling flanges as stated in the overall dimensions table.
Stator winding insulated according to F class, H class rotor impregnated with epoxy varnish.
The normal degree of protection is IP121 according to UNEL 05515-71 and IEC 34-5 international standards. On request is possible to supply IP23.

TECHNICAL CHARACTERISTICS
The data stated in the tables are applicable to following conditions: environmental temperature not exceeding 40C - height not exceeding 1000m a.s.l. - continuous duty.

Self-excitation is by residual magnetism, whereas self-adjustment is obtained by the compound system.
With generator running, voltage accuracy is kept within 5%. With full load on at cosø= 1 to 0.8, the voltage drop is kept within 8%.
three-phase asynchronous motor starting: With a 20% drop at terminals the generator delivers current equal to ~ 3ln (three times the rated current).
With a symmetrical short-circuit the current remains more than 3In (three times the rated current).
With full load on the voltage returns to its rated value in about 0.1".


2 POLES 230/400V - 3000/3600 RPM - 50/60 Hz
Three Phase Synchronous Generator
Values at rated output
CODEPower kVAPower kW Power factorEfficiency
GST443,20,80,73
GST5.55,54,40,80,75
GST6,56,55,20,80,78
GST886,40,80,8
GST101080,80,81


4 POLES 230/400V - 1500/1800 RPM - 50/60 Hz
Three Phase Synchronous Generator
Values at rated output
CODEPower kVAPower kW Power factorEfficiency
GST6,56,55,20,80,75
GST886,40,80,78
GST101080,80,79
GST13,513,510,80,80,81
GST161612,80,80,83
GST22,522,5180,80,85
GST272721,80,80,86


2 POLES 230/400V - 3000/3600 RPM - 50/60 Hz
Three Phase Synchronous Generator
Values at rated output
CODEPower kVAPower kW Power factorEfficiency
GST1313,510,80,80,78
GST1716,513,20,80,80
GST2222180,80,83
GST272721,60,80,85
GST3131,525,50,80,86
GST383830,40,80,88


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