Explosion protected rectifier

Thyristor-Rectifiers particulary suitable for EX-zone.

The rectifier construction of the production series Thyro-Power in principle is characterized by an electronic Thyristor-control-unit (W3C) and high-current-transformer with secondary connected silicon diode-stack in M3.2U connection or B6C connection.

All constructions and developments are made by IPS-FEST, so that the customer will get the highest possible flexibility and technical know-how. This is realized with our high degree of own manufacturing, including the transformer production.

  • Oil- and Water cooling systems
  • Optional with Bipol-Power (integrated electronic switch of DC output polarity)
  • Optional with Powerpuls
  • Single T/R from: UDC = 2 - 1.000V / IDC = 100 - 100.000A
  • Type of protection: Ex(e), Ex(d), Ex(p) and Ex(o)
  • Enclosure material (stainless steel up to SS316L, Titanium heat exchanger)
  • Degree of protection up to IP66
  • Integrated intelligent purge pressurization system
  • Certification: ATEX and IECEx (INMETRO and PESO on request)
  • EExp-System wired and ex proofed according to ATEX, EN60079-2 and EN60079-14


Technical Data
  • Mains: 3x400V / 50Hz (worldwide mains-conditions possible)
  • Regulating: current and/or voltage with 1% accuracy
  • Setting range: stepless electronic 0...100%
  • Signals: current, voltage, status, fault (fault signals optional)
  • Control: interface for external control
  • Ripple: approx. 5% at regulated full-DC-output voltage (optional smoothing)
  • Rectifier connection: 6-pulse rectifier-connection (optional 12-pulse)
  • Operation mode: 100% duty cycle
  • Temperature: +35°C (higher temperature conditions possible)
  • Water inlet temp.: +18 to 30°C
  • Temperature difference: 10 K
  • Detection: phase position; phase rotation; phase loss; over current relay; mains low voltage; short-circuit detection; temperatures; water flow; water pressure
  • Degree of protection: IP54 - IP66 (with additional air- water- heat-exchanger)
  • Field-bus interface (Profibus; Profinet; Modbus; RS-485 etc.)
  • Electronic switch of DC output polarity (bipolar mode 2 x M3.2C or 2 x B6C)
  • Transformer taps
  • Smoothing devices (L and LC smoothing up to 1% possible)
  • Ah-counter-integration
  • Separate design of control and power section (IP20 / IP66)
  • Closed internal water circuit with water/water heat exchanger
  • Special designs according to customer requirements possible without any problems
  • Our power sources can be connected in parallel for power multiplication
Thyro Power provides
  • high speed regulation
  • high regulating accuracy
  • short-circuit management
  • no mechanical wear
  • low maintenance and high reliability