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Aluminium Anodizing, Zinc Electroplating, Electro-Polishing of stainless steel, Special Applications
The enduring oil cooled rectifier in 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 %.
Block diagram / Functional Description:
Capacity adjustement is achieved either on the primary side or the secondary side of the device. Using a power switch or fuse elements and a main contactor ensures safe mains separation. Galvanic mains separation is achieved by an integrated main transformer. A 6-pulse rectification meets the requirements which are relevant to the process.
By means of additional smoothing elements all desired ripples can be realized.
The main components (variable ratio transformer, main transformer, diode bridge) are installed in one steel tank and are sufficiently cooled.
The oil cooled Thyristor Technology is preferably used for low and medium output ranges (2000 A - ≥ 20000 A)
Easy to handle and perfect for harsh everyday industrial conditions Variable Ratio Transformer Rectifiers are highly regarded worldwide.
|Mains Voltage:||3 x 400 V / 50 Hz + N + PE|
|Output Current:||> 2000 A - 20000 A|
|Output Voltage:||6 V - 500 V|
|Ripple:||ca. 5 %...7 % at full load|
|Ripple (Option):||1 %..3 % control range|
|Duty Factor:||100 % (24/7)|
|Efficiency:||80 % - 93 %|
|Ambient Temperature:||+ 35 °C|
|> + 40 °C (Option)|
|Protection Grade (standard):||IP 54 tank / IP 23 cover|
The Thyristor-controlled rectifiers in oil cooling are available in the following tank sizes:
(Dimensions in mm)
Analog Setpoint and Actual values 0-10 VDC
(Option: 0..20 mA, 4..20 mA; Profibus DP, PROFINET, etc.)