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Woodward 9907-555

Product Name:​ Woodward 2301A Special-Condition Customized Speed & Load Controller (Marine Version)
Product Introduction:​ A customized version of the 2301A, with hardware circuits optimized for marine and offshore certification conditions, meeting marine equipment certification requirements. Used for speed and load sharing control of generator sets on ships and offshore platforms.

Woodward 9907-551

Product Name:​ Woodward 2301A Reverse-Acting Low-Voltage Speed & Load Controller
Product Introduction:​ A reverse-acting version of the 2301A series. The drive output characteristic is reversed to match reverse-acting fuel actuators. Other speed control and load sharing functions remain consistent with standard models.

Woodward 9907-535

Product Name:​ Woodward 2301A-LS Low-Voltage Load Sharing Controller
Product Introduction:​ A derivative model of the 2301A series, focusing on multi-unit load sharing. It simplifies some synchronization functions and specializes in prime mover speed closed-loop and parallel load sharing, suitable for scenarios requiring multi-unit island parallel operation without complex grid-tie logic.

Woodward 9907-523

Product Name:​ Woodward LS-523 Extended Synchronization & Load Controller
Product Introduction:​ The highest-configuration model of the LS-5 series, featuring full master station capabilities with expanded I/O capacity and support for complex interlock logic. It is suitable for complex power stations with mixed operation of various prime movers, such as combined parallel scenarios of gas units and diesel units.

Woodward 9907-522

Product Name:​ Woodward LS-522 Master Synchronization & Load Controller
Product Introduction:​ A master station controller of the LS-5 series, serving as the overall coordination unit for the entire power station. It issues load commands to multiple slave controllers to achieve total plant load control, supports grid import/export power regulation, and is suitable for large-scale multi-unit power station systems.

Woodward 9907-521

Product Name:​ Woodward 2301A Load Sharing & Speed Controller
Product Introduction:​ A member of the Woodward 2301A series 9905/9907 product line. This series of controllers is used to control the load sharing and speed of generators driven by diesel engines, gasoline engines, steam turbines, or gas turbines.

Woodward 9907-520

Product Name:​ Woodward LS-520 Synchronization & Load Sharing Controller
Product Introduction:​ An LS-5 series digital grid-tie controller integrating synchronization detection, breaker closing logic, and load sharing functions for generator-grid tie and multi-unit parallel operation control. It features a built-in digital processing unit and supports panel keypad parameter configuration.

Woodward 9907-358

Product Name:​ Woodward 2301A High-Voltage AC-Powered Speed & Load Sharing Controller
Product Introduction:​ A high-voltage version of the 2301A series, compatible with AC input power, eliminating the need for a DC battery supply. It is suitable for industrial power stations with AC power availability, enabling speed regulation and multi-unit load sharing.

Woodward 9906-739

Product Name:​ Woodward 9906-739 Speed Control & Load Sharing Controller
Product Introduction:​ This controller acquires pulse signals from a magnetic speed pickup to calculate actual speed, performs a differential calculation with the set speed, and outputs a corresponding drive current to control the fuel actuator for fuel quantity adjustment. In multi-unit parallel operation, it reads the load signals of other units on the bus and dynamically adjusts the output to achieve uniform load distribution.

Woodward 9902-405

Product Name:​ VSV (Variable Stator Vane) Hydraulic Control Mechanism
Product Introduction:​ The 9902-405 is a Woodward VSV variable stator vane control mechanism for non-aviation gas turbines, described alongside 9902-332 and 9902-406 in Manual 40110. It is mechanically similar to 9902-332 but differs in rotation direction, pressure ratings, and compliance specifications.

Woodward 9902-332

Product Name:​ VSV (Variable Stator Vane) Hydraulic Control Mechanism
Product Introduction:​ The 9902-332 is a classic model within Woodward's VSV variable stator vane control series, designed for non-aviation gas turbines. Its function belongs to the same product family as 9902-337, used for positioning compressor variable stator vanes, preventing compressor stall, and ensuring efficient operation under partial-load conditions. This model is described alongside 9902-405 and 9902-406 in Manual 40110.

Woodward 9902-279

Product Name:​ 505 Series Digital Controller Companion Module / Potential Converter
Product Introduction:​ The 9902-279 is a general-purpose control module/converter within Woodward's 505/505E series turbine control system family. Based on a microprocessor architecture, the 505 series is used for speed control, load distribution, synchronization, and protection of steam and gas turbines. The 9902-279 serves as a signal conversion or control interface module within the system, performing specific signal processing or power conversion tasks.