WOODWARD 8901-457 is an electro-hydraulic converter belonging to CPC (possibly a control product series), which can linearly and proportionally convert 4-20mA control signals into oil pressure output. It is suitable for pressure type servo systems or single acting power cylinders and is often matched with electronic control devices such as Woodward 505e. It can be used for controlling steam turbines, achieving precise position control of turbine related components, and thus controlling the operating status of the turbine.
Description
Product features: It has some general advantages, such as reliable three module redundancy design, high availability; Having good self diagnostic function, able to promptly detect its own faults; I/O modules can be replaced online, and the configuration of I/O modules is flexible, which can form single point, dual redundancy, or triple redundancy I/O forms or combinations, making it easy to configure according to different application scenarios and reliability requirements; The processing cycle of the key control loop can reach 5ms, with a fast response speed that can quickly and accurately respond to control signals, ensuring the stability and accuracy of the system.
Application areas: Mainly used in industrial scenarios involving steam turbine control, such as petrochemicals, power generation, and other industries. In these industries, the stable operation of steam turbines is crucial for the entire production process. The 8901-457 electro-hydraulic converter can accurately control the inlet steam flow or other related parameters of the steam turbine, thereby ensuring that the operating indicators such as speed and power of the steam turbine meet production requirements, improving production efficiency and product quality, while ensuring the safety and reliability of the production process.
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