Mainstream designed, built and tested a 25 kW continuous (35 kW peak), 105 °C liquid cooled, wide-bandgap (WBG) three-phase motor drive. This motor drive is based on a custom SiC module. The motor drive is 99% efficient, weighs only 11.5 lbs, and has dimensions of 11″ x 7″ x 3.5″. Installation into the end application vehicle is also simplified because all electrical and fluid connections are located on the same enclosure face.
Mainstream’s variable frequency drive is a liquid cooled motor drive with an integrated active PFC rectifier for meeting the strict requirements of MIL-STD 461. It can be powered by a 208/230 Vac, 50/60 Hz source (such as the AC grid, a generator, or a tactical microgrid) or modified to operate from a DC source. The motor drive can be used with fluid inlet temperatures from -40° to 70°C and drive AC induction motors or AC permanent magnet synchronous motors using advanced sensorless field-oriented control.
Dimensions (L x W x H) | 17.5 x 13.5 x 4.25 | Inches | ||
Weight | 31 | lbs | ||
AC Input Voltage | 183 | 208 | 240 | Vline-line rms |
AC Input Frequency | 45 | 50/60 | 66 | Hz |
Line Voltage Unbalance | -5% | 0 | 5% | |
Input Current | 25 | Arms per line | ||
Inrush Current | < 25 | Apeak per line | ||
Input Power Factor (DPF) | 0.99 | Displacement power factor | ||
Input Power Factor (HPF) | 0.99 | Harmonic power factor | ||
AC Output Voltage | 0 | 230 | Vline-line rms | |
AC Output Frequency | 0 | 1000 | Hz | |
AC Output Current | 0 | 25 | Arms per line | |
Output Voltage dV/dt | 2.5 | kV/µs |
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