Silicon Productions 
The MGB Electric Sports Car
Analysis by Warren Winovich
Page 10
Curtis three-phase inverter/controller
model 1238-75
Specifications
| voltage input | 96 Volts, direct current |
| power rating | 20 kW, continuous: |
| 70 Volts @ 165 Amps, 3-phase, AC | |
| 62 kW, short-term: 2 minutes: | |
| 70 Volts @ 550 Amps, 3-phase, AC | |
| frequency | 0 to 220 Hz: |
| synchronous speed: 6600 rpm | |
| motorspeed @ 10 kW: 6435 rpm | |
| efficiency | 94% |
| regeneration programmable | 550 Amps, maximum |
| length, width, height | 10.75, 9.25, 4 inches |
| weight | 25 pounds |
| Controller | Curtis three-phase inverter; 120 Volts |
Figure 3. The low-voltage Curtis three-phase inverter/controller installed in the MGB electric-powered roadster.
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