Phase Stabilizer

Product Details
Data Sheets
Technical Drawings
User manual


Medical Grade Power
±1.5% Output Voltage Regulation
Input Filter (-40 dB)
Controlled Impedance
Load Regulation
Output Filter (-60 dB/decade)
Secondary Surge Suppression
2 Year Factory Warranty


  Sizes 15 to 1,250 kVA
  Input Voltage* 208 or 480 VAC
  Output Voltage* 208Y/120 or 480Y/277 VAC
  Frequency* 50 or 60 Hz, ±5%
  Response Time 1 cycle typical
  Harmonic Distortion 1% max. added at switching
  Audible Noise Meets or exceeds NEMA standards
  Common-Mode -120 dB <300 kVA
  Normal-Mode -60 dB/decade
  Neutral to Ground 0.5V max. potential
  Overload (Inrush) 200% of full load for 10 second 1000% of full load for 1cycle
  Input Voltage
  Regulation Range
+8% to -10% of nominal

Output Voltage
  Regulation Range ±1.5% typical, ±2% maximum phase imbalance
  Voltage Surges 20% max. above nominal voltage, 50 milliseconds max. duration
  Voltage Sags 30% max. below nominal voltage, 20 milliseconds max. duration
  Line Transients 20% above nominal voltage 1/hr. max.
  Efficiency >96% at 80% of load
  Load Power Factor 0.3 leading or lagging to unity
  Transformer Type
    <300 kVA 3 phase computer grade, dual-shielded, copper wounded, isolation transformer
    >400 kVA 3 phase, copper wound, buck-boost transformer
  Transformer Impedance 3 to 5% (low impedance)

  Operating Temperature 32°(0°C) to 104°F (40°C)
  Operating Humidity 10 to 90% non-condensing
  Operating Temperature 32°F (0°C) to 104°F (40°C)
  Storage Temperature -4°F (-20°C) to 140°F (60°C)
  Operating Humidity 5 to 95% non-condensing
* Other voltages and frequencies available.

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