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WOODWARD 505 Steam Turbine Controls

来源: | 作者:FAN | 发布时间 :2025-06-14 | 266 次浏览: | Share:

WOODWARD 505 Steam Turbine Controls

Brand background

WOODWARD, as a globally renowned provider of industrial control solutions, has a profound historical background and excellent technical reputation in the field of power system control. Since its establishment in 1870, we have been dedicated to designing, manufacturing, and servicing various control products, providing core control technology support for key industries such as aerospace, power generation, and industrial drives. With continuous technological innovation and a persistent pursuit of quality, WOODWARD has set an industry benchmark in the field of steam turbine control. Its products are widely used in various industrial facilities around the world, playing a key role in ensuring efficient and stable operation of equipment.


Product overview

WOODWARD 505 is a digital steam turbine controller with a microprocessor as its core, carefully designed for precise control and reliable protection of industrial steam turbines. Its original design intention is to provide standardized and customizable control solutions for various steam turbine application scenarios, covering from simple single valve turbine control to complex multi condition turbine systems. The 505 controller is encapsulated in an industrial grade hardened casing, suitable for installation in the system control panel of the factory control room or placed next to the turbine for easy on-site operation and monitoring. The front panel integrates the functions of a programming station and an operator control panel (OCP), greatly facilitating engineers to program and set according to specific factory needs. It also makes it easy for factory operators to start, stop, and switch control modes of the steam turbine.


Specification parameters

(1) Power specifications

Model 9907-162/9907-163: Supports 18-32 VDC power input and is suitable for industrial environments that require high power stability and use DC power supply.

Other models: can adapt to AC power sources such as 220 VAC, meet the usage needs of different power infrastructure conditions, and enhance the product's versatility in various industrial scenarios.

(2) Size specifications

Ordinary panel installation dimensions: approximately 14 inches (356mm) long, 11 inches (279mm) high, and 4 inches (102mm) deep. The compact exterior design allows it to be flexibly installed in various control cabinets, saving space while not affecting its functionality.

The optional NEMA 4 bulkhead installation shell size is approximately 20 inches (508mm) long, 20 inches (508mm) high, and 7.6 inches (193mm) deep. This shell has waterproof and dustproof properties and is suitable for harsh indoor and outdoor environmental conditions, further expanding the product's application range.

(3) Environmental adaptability parameters

Working temperature range: The standard model ranges from -25 ℃ to+65 ℃, which can adapt to temperature changes in most conventional industrial environments and ensure stable operation under different seasons and regional conditions. For products with NEMA 4 enclosures, the operating temperature range is -25 ℃ to+55 ℃, which maintains good temperature adaptability while providing protective features.

Humidity adaptability: Through Lloyd's env2 test # 1, it has been shown that it can work normally within a certain humidity range, effectively avoiding electrical failures caused by humidity issues and improving product reliability.

Anti impact and vibration performance: In terms of impact, it meets the US military standard US MIL-STD-810 C, method 516.2-1, procedure 1b, and can withstand a certain strength of mechanical impact; In terms of vibration, according to Lloyd's env2 test # 1, it can still operate stably in a vibration environment and is suitable for installation near equipment with vibration sources, such as steam turbine control systems next to large mechanical equipment.


Core functions

(1) Speed and frequency control

Accurate speed regulation: Using advanced control algorithms, the speed of the steam turbine can be precisely adjusted according to the set value, with a control accuracy of ± 0.1% of the rated speed, ensuring that the steam turbine can operate stably under different load conditions, providing stable power output for applications such as power generation and mechanical drive. For example, in power generation scenarios, stable rotational speed is a key factor in ensuring power quality. WOODWARD 505 can effectively maintain rotational speed stability, reduce frequency fluctuations, and improve power generation efficiency and power quality.

Frequency following function: It can automatically adjust the speed of the steam turbine based on the grid frequency or other external frequency signals, achieving synchronous operation with the grid or other equipment, enhancing the adaptability and compatibility of the steam turbine in complex power systems. In a power plant with multiple units operating in parallel, each unit needs to work together through frequency synchronization. The frequency following function of 505 can ensure that each turbine can accurately match the grid frequency, ensuring the stable operation of the power system.

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