railway inverters/DC-AC inverter photo
Railway Inverters/DC-AC Inverter
Galaxy Series

600-750 VDC Nominal Input / Pure Sine-Wave Output

  • Work Train Applications: Inverters in various sizes, from 5-20 kVA, are currently utilized by such customers as Amtrack and the MBTA for powering equipment on third rail 450-750 VDC Work Train Applications. Everything from hand tools to lighting run on Nova inverters. Even on-board electric toilets are powered by our inverters!
  • Trolley Applications: Nova has supplied specialized inverters for many custom Trolley Applications.  In addition to our other custom designs, we have designed and built special inverters modified to accept 900 VDC continuous input at the customer’s request. Nova inverters are also used to power lighting on Historic Trolley Systems across the country. The next time you see a restored trolley, remember that the lights are probably powered by Nova!
  • Subway Applications: Our durable 600 VDC inverters are currently being used by such customers as Chicago Transit Authority and Long Island Railroad for such various applications as providing emergency power from the third rail. Quite often, it is cheaper and more pragmatic to install an inverter in a hut (shed) on a siding than to run AC power from a distant location.
  • Custom Applications: Nova offers an almost infinite combination of custom cabinets and configurations to satisfy almost any application! Mobile applications, as well as outdoor applications subject to rain, snow, ice, wind, etc. are one of our specialties! Our inverters are extremely rugged by design, and feature an advanced Internal Suppression Filter Network to suppress the significant transients usually associated with these applications. Please don’t hesitate to contact the factory for additional information.

Partial Standard Model Selection
(Consult factory for higher power ratings)
60 Hz Models
60 Hz Models Output VAC Output Freq. (Hz) Cont. Output Power Size in.(HxWxL) Approx. Efficiency Outline Drawing
GH1K60-600 120 60 1KVA 30x24x8 90% pdf_icon
GH2K60-600 120 60 2KVA 30x24x8 90% pdf_icon
GH3K60-600 120 60 3KVA 30x24x12 90% pdf_icon
GH5K60-600 120 60 5KVA 30x24x12 90% pdf_icon
GH7.5K60-600 120 60 7.5KVA 36x36x16 90% pdf_icon
GH10K60-600 120 60 10KVA 36x36x16 90% pdf_icon
GH15K60-600 120 60 15KVA 48x30x16 90%
GH20K60-600 120 60 20KVA 48x30x16 90%
GH25K60-600 120 60 25KVA 54x36x16 90% pdf_icon
GH30K60-600 120 60 30KVA 54x36x16 90% pdf_icon
GH35K60-600 120 60 35KVA 54x36x16 90% pdf_icon
50 Hz Models
50 Hz Models Output VAC Output Freq. (Hz) Cont. Output Power Size in.(HxWxL) Approx. Efficiency Outline Drawing
GH1K50-600 (220) 220 50 1KVA 30x24x8 90% pdf_icon
GH2K50-600 (220) 220 50 2KVA 30x24x8 90% pdf_icon
GH3K50-600 (220) 220 50 3KVA 30x24x12 90% pdf_icon
GH5K50-600 (220) 220 50 5KVA 30x24x12 90% pdf_icon
GH7.5K50-600 (220) 220 50 7.5KVA 36x36x16 90% pdf_icon
GH10K50-600 (220) 220 50 10KVA 36x36x16 90% pdf_icon
GH15K50-600 (220) 220 50 15KVA 48x30x16 90%
GH20K50-600 (220) 220 50 20KVA 48x30x16 90%
GH25K50-600 (220) 220 50 25KVA 54x36x16 90% pdf_icon
GH30K50-600 (220) 220 50 30KVA 54x36x16 90% pdf_icon
GH35K50-600 (220) 220 50 35KVA 54x36x16 90% pdf_icon
3 Phase Models
3 Phase Models* Output VAC Output Freq. (Hz) Cont. Output Power Size in.(HxWxL)
GS1.5K3/6-600 (120/208) 120/208 60 1.5KVA C/F
GS1.5K3/5-600 (220/380) 220/380 50 1.5KVA C/F
GS1.5K3/4-600 (115/200) 115/200 400 1.5KVA C/F
GH3K3/6-600 (120/208) 120/208 60 3KVA C/F
GH3K3/5-600 (220/380) 220/280 50 3KVA C/F
GH3K3/4-600 (115/200) 115/200 400 3KVA C/F
GH4.5K3/6-600 (120/208) 120/208 60 4.5KVA C/F
GH4.5K3/5-600 (220/380) 220/380 50 4.5KVA C/F
GH4.5K3/4-600 (115/200) 115/200 400 4.5KVA C/F
GH6K3/6-600 (120/208) 120/208 60 6KVA C/F
GH6K3/5-600 (220/380) 220/380 50 6KVA C/F
GH6K3/4-600 (115/200) 115/200 400 6KVA C/F
GH9K3/6-600 (120/208) 120/208 60 9KVA C/F
GH9K3/5-600 (220/380) 220/380 50 9KVA C/F
GH9K3/4-600 (115/200) 115/200 400 9KVA C/F
GH15K3/6-600 (120/208) 120/208 60 15KVA C/F
GH15K3/5-600 (220/380) 220/380 50 15KVA C/F
GH15K3/4-600 (115/200) 115/200 400 15KVA C/F
GH20K3/6-600 (120/208) 120/208 60 20KVA C/F
GH20K3/5-600 (220/380) 220/380 50 20KVA C/F
GH20K3/4-600 (115/200) 115/200 400 20KVA C/F
GH25K3/6-600 (120/208) 120/208 60 25KVA C/F
GH25K3/5-600 (220/380) 220/380 50 25KVA C/F
GH25K3/4-600 (115/200) 115/200 400 25KVA C/F
GH30K3/6-600 (120/208) 120/208 60 30KVA C/F
GH30K3/5-600 (220/380) 220/380 50 30KVA C/F
GH30K3/4-600 (115/200) 115/200 400 30KVA C/F
GH35K3/6-600 (120/208) 120/208 60 35KVA C/F
GH35K3/5-600 (220/380) 220/380 50 35KVA C/F
GH35K3/4-600 (115/200) 115/200 400 35KVA C/F

 STANDARD FEATURES

  • • Pure Sinewave Output
  • • Internal Transient Suppression Filter
  • • Network for input voltage transients
  • • High reliability, MTBF exceeds 100,000 hours (field data)
  • • OV, O.L. and O.T. protected
  • • MTTR below 30 minutes; modular design
  • • Withstands high reactive load
  • • Tight voltage and frequency regulation
  • • Boards are conformal coated

 AVAILABLE OPTIONS

  • • Ruggedized to meet MIL-STD-810 shock, vibration and humidity (“R” option)
  • • Wide temperature range -40°C to +71°C (with derating)
  • • Special output voltages and frequencies
  • • MS Connectors or outlets
  • • Custom painting and marking
  • • Handles (rack mount models only)
  • • High inrush for motor start
  • • Transfer switch to alternate AC source
  • • Switchable 50/60 Hz output
  • • Output fault alarm (relay closure)
  • • RS232 or SNMP Communication

 SPECIFICATIONS

 ELECTRICAL
  • Input Voltage: 600VDC (Extended range available)
  • Output Voltage: See Table
  • Frequency: 50 Hz, 60 Hz, 400 Hz (+/-0.5%)
  • Frequency Regulation: +/-0.5% N.L. to F.L.
  • Voltage Regulation: +/-1.5% N.L. to F.L.
  • Efficiency: Approximately 80% (depending on model)
  • Reactive Load: 0.75 Lead to 0.75 Lag
  • Distortion: 5% THD, 3% Single Harmonic
  • Overload: 125% for 5 minutes
  • Overload Protection Range: Automatic overload & short circuit protection
  • Sync & Phase Lock Range: +/-3 Hz, Typical (50/60 Hz models)
  • Transient Response: Approx. 1/4 cycle recovery to 95% of nominal
 ENVIRONMENTAL & MECHANICAL
  • Operating Temp: -20°C to +50°C Standard -40°C to +71°C Optional
  • Cooling: By internal DC brushless fan
  • Vibration: Normal shipping and handling
  • Shock: 20g, 11 mS half sinewave
  • Humidity: To 95% RH non-condensing
  • EMI: Designed to meet FCC Part 15, Class A, Can meet MIL-STD-461 with additional filtering
The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement.