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Air cooled Regulating Transformers

  • lk-stelltrafo

 

GENERAL

// Optional with elektromechanical switch of DC output polarity

// Single T/R from: UDC = 2 - 150V / IDC = 100 - 15.000A

TECHNICAL DATA

  • Mains: 3x400V / 50Hz (worldwide mains-conditions possible)
  • Regulating: digital raise/lower signal (stepless electronic 0...100%)
  • Signals: current, voltage, status, fault (fault signals optional)
  • Control: interface for external control
  • Ripple: <5% over the whole range
  • Rectifier connection: 6-pulse rectifier-connection (M6, M3.2, B6)
  • Operation mode: 100% duty cycle
  • Temperature: +35°C (higher temperature conditions possible)
  • Cooling: natural convection or forced air cooling
  • Detection: phase position; phase rotation; phase loss; over
  • current relay; mains low voltage; short-circuit detection; temperatures
  • Degree of protection: IP20 - tank IP66 (with air/water heat-exchanger

OPTIONS

  • Field-bus interface (Profibus; Interbus-S; CAN-Bus; RS-485 etc.)
  • Electromechanical switch of DC output polarity
  • Mains transformer tapings
  • Smoothing devices (L and LC smoothing <1% possible)
  • Ah-counter-integration
  • Remote control (optinal with time relay control or PLC-control)
  • Special taylor made constructions

OIL COOLING PROVIDES

  • efficient cooling pf all power parts
  • silent operation
  • low maintenance and high reliability