SMG series converters are now used in the USS Dolphin providing a low THD and low noise solution. SMG converters (120kva 628Hz 3phase) are used in the ALSTOM ROV. This is the same ROV used by the US Navy to salvage the Japanese Research vessel.

Frequency Changers
20 - 1000kva
Input Frequencies: 50 - 400Hz
Output Frequencies: 0 - 1kHz

Advanced Features
Parallels with any static converter or Motor 
   Generator set (US Patented)
Allows replacement of existing MGs without 
   changes to system power requirements or 
   performance
Remote monitoring and control
Small Footprint: 120 kva, 60"H x 23"D x 30"W
Lightweight 120kva, 1200 lbs.

Standard Features
Patented RISC Processor based State Space 
    Controllers and high efficiency PWM 
   technology
Meets or surpasses the Standard 3% Input 
   Harmonic Content
True Sine Wave Output; Harmonics (THD) 
   less than 0.5%
Voltage Reg. - 0.5%
Frequency Stab. - 0.2%
PF In - 0.95,  Out - 0.80
Vout 0 - 960V 3 Phase
Output Freq. 0 - 1KHz
Transient response less than ¼ cycle at 
   any frequency - No load to full load
Remote RS485 Interface
Over voltage and over current protection
Patented IGBT driver technology

Series SMG3TW

Applications
MG Replacement
Primary or secondary power source
Bidirectional power source
EV applications
Recirculating load banks
High speed motor drives (90000rpm) 
   for Flywheel and compressor 
   applications