OCC 3 Wire Off-Grid Inverter — One-Cycle Control

OCC-3 Wire Off-Grid Inverter

Breakthrough Technology

OCC-3WI leverages unique patented technology invented at Caltech & University of California Irvine and developed by world leading power-electronic experts under partial sponsorship of U.S. Department of Defense. The OCC-3WI, based on Army-Award-Winning OCC-4WI, is the first hardware-enabled 3-phase 3-Wire Off-Grid Inverter that connects DC sources to Off-Grid AC loads, or used to create an AC micro-grid, with high reliability, ultrafast dynamics, and simple user interface, enabling high-quality output power to diverse 3-Wire and Line-to-Line loads. The OCC-3WI features industry-leading dynamic performance and power density.

Applications

Remote/Mobile Power
AC Micro-grid / Island

Options

Adjustable Voltage (enables black start)
Adjustable Frequency
50, 60, or 400Hz output
Various output voltages
Extended Temperature Range
Condensing Environments

Features

One-cycle Control Technology
Power factor > 0.99
Current harmonics < 3%
Efficiency > 98%
Stable zero load operation
Leading response speed (100s of microsec)
Leading light weight < 29 kg (65 lbs)
Leading power density ~20 W/inch3 to 30 W/inch3
Single unit 40kW to 60kW, scalable to MW

Specification

  
    Product
    3WI3050A2480/8002IR
    3WI3050A2380/6332IR
    3WI3100A2208/3652IR
  
    3WI3075A2480/8002IR
    3WI3075A2480/8002IR
    
  	Electrical Specifications
  
  	AC Phase/Wires
    3 phase/3 wires 
  
  	AC Freq (Hz)
    60
    50
    60
  
  	AC Voltage Range (V, rms) Line-to-Line
    480
    380
    208
  
  	Max AC Current (A, rms)
    75 / 50
    100
  
  	AC Circuit Breaker (if used) Voltage Rating (Vrms)
    600
    250
  
  	AC Circuit Breaker (if used) Current Rating (Arms)
    75 / 50
    100
  
  	AC Circuit Breaker (if used) Interrupt Current (Arms)
    6k
  
  	DC Voltage Range (Vdc)
    725 - 900
    600 - 900
    330 - 400
  
  	Max DC Current (Adc)
    75 / 50
    100
  
  	Efficiency
    98.3% / 96%
  
  	AC Voltage % THD @ Full Power
    3%
  
  	Mechanical Specification
  
  	Weight kg (lb)
    32 (70)
  
  	 Size (L x W x H) cm (inch)
     58 x 45 x 13 (23 x 17.5 x 5.25)
  
  	Bench Mount
    ✓
  
  	19" Rack Mount
    ✓
  
  	Wall Mount
    ✓
  
  	NEMA type
    1
  
Environment Specifications 
  
  	Operating Temp. (℃)
    0 to 40    
  
  	 Operating Relative Humidity w/o Condensation
    0 - 95%
  
  	Storage Temp (℃)
    -10 to 55
  
  	Audible Noise (dBA) @ 1m (3ft)
    80
  
  	Safety
  
  	UL 508C
    Designed

Product	3WI3050A2480/8002IR	3WI3050A2380/6332IR	3WI3100A2208/3652IR
	3WI3075A2480/8002IR	3WI3075A2480/8002IR
Electrical Specifications
AC Phase/Wires	3 phase/3 wires
AC Freq (Hz)	60	50	60
AC Voltage Range (V, rms) Line-to-Line	480	380	208
Max AC Current (A, rms)	75 / 50	100
AC Circuit Breaker (if used) Voltage Rating (Vrms)	600	250
AC Circuit Breaker (if used) Current Rating (Arms)	75 / 50	100
AC Circuit Breaker (if used) Interrupt Current (Arms)	6k
DC Voltage Range (Vdc)	725 - 900	600 - 900	330 - 400
Max DC Current (Adc)	75 / 50	100
Efficiency	98.3% / 96%
AC Voltage % THD @ Full Power	3%
Mechanical Specification
Weight kg (lb)	32 (70)
Size (L x W x H) cm (inch)	58 x 45 x 13 (23 x 17.5 x 5.25)
Bench Mount	✓
19" Rack Mount	✓
Wall Mount	✓
NEMA type	1
Environment Specifications
Operating Temp. (℃)	0 to 40
Operating Relative Humidity w/o Condensation	0 - 95%
Storage Temp (℃)	-10 to 55
Audible Noise (dBA) @ 1m (3ft)	80
Safety
UL 508C	Designed

Link to Brochure