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Variable Column Transformers

Ruhstrat® variable column transformers are developed, manufactured and tested in accordance with relevant EC directives, European standards and VDE regulations, in particular DIN EN 61558-2-14 and VDE 0552.

  • according to EN 61558-2-14 and VDE 0552
  • voltage range up to 1.000 V
  • rated frequency 16 ⅔ Hz, 50 Hz and 400 Hz
  • single-phase and three-phase design
  • construction for heavy-duty operation according to VDE 0552 § 5
  • type of protection: IP 00 up to IP 54
  • as test system with electronic control (PLC) for applications a:
    - AC/DC power supply
    - AC/DC high-voltage supply
    - high-current supply system
    - AC/DC laboratory unit for test and development purpose
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Variable Transformers