50 Years Munk: Of roots, values and growth
We celebrate 50 Years company anniversary'
Rectifiers in low-floor design
PowerCabinet Nano and PSP 2540
If height is a challenge
PSP Tower: efficient - flexible - sustainable
Surface Technology, Stuttgart
New Date !
Now: 27.-29. October 2020
- 50 Years Munk: Of roots, values and growth
- Rectifiers in low-floor design
- PSP Tower: efficient - flexible - sustainable
- Surface Technology, Stuttgart
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Electrolytic strip galvanizing, Plating Processes, High-current Applications
The robust Variable Ration Transformer Rectifiers in water/oil cooling are designed for reliable operation in the harshest environments. All critical power components are completely submerged in oil so the best protection from the environment is guaranteed.
The complete power unit is integrated in a plain sheet tank filled with insulating oil. The internal heat loss is completely discharged via the customer-provided cooling water by means of a circulation pump and an oil-water-heat exchanger. This concept provides an outstanding basis for energy-efficient approaches.
Due to the high water inlet temperature of up to 45 °C a return temperature of up to approximately 60-65 °C would be possible. With the MUNK oil water cooled Rectifiers waste heat can be sustainably used.
Our Variable Ratio Transformer Technology is also available in oil-cooling.
Block diagram / Functional Description:
Capacity adjustement is achieved on the primary side. Using fuse elements and a main contactor ensures safe mains separation. Galvanic mains separation is achieved by the main transformer. A 6-pulse rectification meets the requirements which are relevant to the process. The main components (variable ratio transformer, main transformer, diode bridge) are installed in one steel tank.
The oil / water cooled Variable Ratio Transformer Technology is preferably used for output ranges from ≥ 3000 A - 15000 A. Due to the compact design and the high protection grade (IP 54) an installation in direct proximity of the process is possible.
Oil/Water cooled DC Power Supplies in Variable Ratio Transformer Technology are equipped with a sustainable heat recovery system to reduce energy costs.
|Mains Voltage:||3 x 400 V, 50 Hz + N + PE|
|Output Current:||> 1000 A - 15000 A|
|Output Voltage:||6 V - 150 V|
|Ripple:||approx. 5 % full range|
|Duty Factor:||100 % (24/7)|
|Efficiency:||80 % - 93 %|
|Ambient Temperature:||+ 35 °C, > 40 °C (Option)|
|Protection Grade:||IP 54 tank / IP 23 cover|
The Variable Ratio Transformer Rectifiers in oil/water cooling are availabe in the following tank sizes:
(Dimensions in mm)
Digital high/low operating commands
Analog Voltage Values 0-10 VDC
Option: 4..20 mA, Profibus DP, PROFINET, etc.