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Unitron Laboratory Production Test Power Supply

Unitron's PS series frequency converter provides stable and reliable 400Hz power for testing or installing aviation equipment and products. Whether the application requires 3.5kVA or 17.5kVA in a shelter or close quarters laboratory, the PS series frequency converter provides power qualified to the latest MIL-STD and RTCA specifications while keeping the noise level low and without any 400Hz “whine.” The PS series can be mounted in any plane to a laboratory desk or rack system.

Shelter application: PS-94 series, PS-450/451

Single phase input military or civilian: PS-94-444-27 series

Legacy: CR Series

 

PRODUCT SELECTION

 

PS-94 Series

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Distributed Power Source

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Selectable output voltage, current and frequency

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Input frequency: 30 to 600 Hz

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Output Frequency: 50, 60, or 400 Hz

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Power Rating: 3.0 to 3.5 kVA

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Parallelable up to 17.5 kVA

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EMI: MIL-STD 461D or RTCA 160D

(More info...)

 

 

CR Series

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Dedicated Power Source

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Front panel voltage, current and frequency adjust

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Input Frequency: 45 to 66 Hz

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Output Frequency: 400 Hz

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Power Rating: 2.5 to 15.0 kVA

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Parallelable up to 14.0 kVA

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19" Rack Mount

(More info...)

 

 

PS-94 SERIES

Unitron’s PS-94 Series programmable AC power supply operates from any standard worldwide power source, and provides 50 Hz, 60 Hz or 400 Hz output power in various single-phase and three-phase configurations.  The unique design of the low-power bench unit allows the user to independently select operational parameters, such as frequency and voltage, using a field-replaceable programming plug.  This versatility makes the unit ideal for use in research laboratories and production line testing.  

Unitron's PS series programmable power supply is available in a standard single unit power rating of 3.5 kVA.  When higher output power is required the units may be paralleled to supply up to 40 kVA.  

(Click on Model number to download PDF spec sheet)

Output Freq (Hz)

Output Voltage EMI Parallel
Option
Notes Model
50 60 400 Volts Config MIL-STD
461D
RTCA/
DO-160D
x x x Selectable   x x 1,2,3,7,11 PS-94-444-27C
x x x Selectable   x x 1,2,7,11 PS-94-444-27D
X X X Selectable X   X 1.2.3

   PS-94-444-16

X X X Selectable   X X 1,2,3

PS-94-444-14

X X X Selectable X   X 1,2

PS-94-444-18

X X X Selectable   X X 1,2

PS-94-444-17

NOTES:
  1. Programming plug (PP Series) or parallel cable (PPC Series) required to determine output frequency and phase configuration.
  2. Two paralleled units require one programming parallel cable (PPC Series) only.  Three or more paralleled units require a programming parallel box (PB Series) in addition to one programming parallel cable (PPC Series) for each unit.  Paralleling for grid expansion up to 17.5 kVA only.
  3. Unit does not include circuit breaker.
  4. Requires one PC-P1 type parallel cable (PC Series) for each unit.
  5. Requires one PC-P3 type parallel cable (PC Series) for each unit. (Limit 3 units.)
  6. Portable power supply and distribution system.
  7. Two or more paralleled units require a paralleling control box (PCB Series) in addition to one paralleling box cable (PBC Series) and one interconnect power cable (IPC Series) for each unit.  Paralleling for common output buss grid expansion (up to 17.5 kVA) or for N+1 redundancy/hot swap system configuration.
  8. Units meet EMI requirements per MIL-I-6181D.
  9. Other output frequency and voltage options available.  Contact factory.
  10. Includes 100 msec. ride-through option.
  11. Unit input is 115V, 30-800Hz, single OR three phase.

Download PS-94 Series Accessories Spec Sheet

 

CR SERIES

Unitron's CR Series frequency converters provide 400 Hz 120/208 VRMS three-phase power from a 50 or 60 Hz 120/208 VRMS input source.  The units have front-panel adjustment and lock controls for voltage, current and frequency, making it an ideal dedicated power source for use in testing and manufacturing labs and plants.

(Click on Model number to download PDF spec sheet)

Output Freq

Output Voltage EMI kVA Parallel
Option
Model
Hz Volts Config MIL-STD
461A
400 120/208 3-phase X 2.5 - 7.0 X    CR-074
400 120/208 3-phase X 12.5 - 15.0      CR-154
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Last modified 19 Feb 2017