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