Subaru Robin RGD3300H - Manual (Page 14)

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lnside the generator are two sets of main coils. Each main coil outputs half the rated power at the lower
voltage (120 V). These main coils are wound to be in the same phase. The full power switch reconnects
these main coils in parallel or in series.
Fig. 1 shows a circuit diagram. When the full power switch is set for single lower voltage indication (120
V), the switch position is as indicated by the lower solid line in the diagram. Fig. 2 is a simplified represen-
tation of this circuit, showing the two main coils connected in parallel. ln this case, the higher voltage (240
V) at Rec. 3 cannot be taken out. Rec. 2 for the lower voltage can output up to the rated power (up to 30 A
if the rated current is over 30 A), and Rec. 1 can output up to a total of 15 A.
When the full power switch is set for double voltage indication (120 V/240 V), the switch position is as indi-
cated by the upper dotted line in Fig. 1. Fig. 3 is a simplified representation of this circuit, showing the two
main coils connected in series. ln this case, power can be taken simultaneously from the receptacles for
the both voltages. Rec. 3 for the higher voltage can output up to the rated power, but Rec. 1 and Rec. 2 for
the lower voltage can output only up to half the rated power each.
Table A is a summary of the above explanation. Select the proper output voltage by full power switch in
accordance with the appliance to be used.
4-3-4 VOLTAGE CHANGEOVER SWITCH
The generator of 50 Hz 110 V/220 V dual voltage type for U.K. is provided with voltage changeover switch
instead of full power switch.
The output voltage is selected from 110 V and 220 V by turning this switch and both voltages cannot be
taken out simultaneously.
The middle point of the main coil shall be grounded when the changeover switch is turned to 110 V side.
Fig. 4
110 V
RECEPTACLE
VOLTAGE
CHANGEOVER
SWITCH
220 V
RECEPTACLE
NFB
NFB
32 A 16 A
MAIN COIL
MAIN COIL
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