Application:AluminiumAnodizing, Zinc Electroplating, Electro-Polishing of stainless steel, Special Applications

Product Description:The Thyristor Technology give the best protection possible without the need of any external cooling source. All critical power components are completely submerged in oil, so optimum cooling and protection form the environment is guaranteed. The adjustment of the rectifier can be carried out by means of a motor-driven variable ratio transformer or electronically by means of thyristors. The rectifiers offer a constant ripple of < 5 %.Our Thyristor Technologyis also available in air-cooling, water-cooling and oil-water-cooling.

Block diagram / Functional Description:

Capacity adjustement is achieved either on the primary side or the secondary side of thedevice. Using a power switch or fuse elements and a main contactor ensures safemains separation. Galvanic mains separation is achievedby an integrated maintransformer. A 6-pulse rectification meets the requirements which are relevantto the process.Bymeans of additional smoothing elements all desired ripples can be realized.Themain components (variable ratio transformer, main transformer, diode bridge)are installed in one steel tank and are sufficiently cooled.

Customer Benefits:The oil cooled Thyristor Technology is preferably used for low and medium outputranges (2000 A - ≥ 20000 A)Easy to handle and perfect for harsh everydayindustrial conditions Variable Ratio Transformer Rectifiers are highly regardedworldwide.

Technical Data:

MainsVoltage:3x 400 V / 50 Hz + N + PE

Output Current:>2000 A - 20000 A

Output Voltage:6V - 500 V

Ripple(standard):approx.5 % - 7% at full load

Ripple(Option):1- 3 % control range

Duty Factor:100% (24/7)

Efficiency:80% - 93 %

AmbientTemperature:+35 °C  >+40 °C (Option)

Cooling:Oil

Water inlet temperature:+ 16 °C - + 35 °C

Protection Grade:IP54 tank / IP 23 cover

Interfaces:

Analog Setpoint andActual values 0-10 VDC 

(Option: 0..20 mA, 4..20 mA; Profibus DP, PROFINET, etc.)

Download: oil scr.docx