Note; All products on this site are special products, the market price has been fluctuating, the specific customer service offer shall prevail, because the product is a new product, the picture is not a real shot, please confirm with customer service before placing an order model and product, price and other details, the site used, new are for sale, please contact customer service communication. Woodward 9907-838 is a load sharing module (LSM) specifically designed for generator set applications. Its core function is to achieve balanced load distribution when multiple generators operate in parallel, compatible with a variety of control devices and featuring strong environmental adaptability.
Core Functions
- Dual-Mode Load Sharing: On one hand, it supports isochronous load sharing. Even when multiple generators operate in parallel, it can flexibly adjust the load of each generator to ensure uniform load distribution and maintain system stability. On the other hand, it is equipped with the droop load sharing function. Under two extreme operating conditions—no-load and full-load—it can automatically reduce output to prevent equipment overload and further optimize the overall load distribution logic.
- Cross-Brand Equipment Compatibility: It has extremely strong compatibility. It not only enables load sharing among engines controlled by Woodward itself but also can connect to engines controlled by non-Woodward brand governors. For example, it is compatible with engines controlled by Caterpillar, which greatly reduces the adaptation difficulty of networking equipment from different brands.
- System Synergy and Compatibility: It can be used in conjunction with the Woodward SPM-A Synchronizer. It can also be matched with the brand's auxiliary devices such as Automatic Generator Load Control (AGLC) and Automatic Power Transfer and Load Control (APTL). Meanwhile, it supports Pulse Width Modulation (PWM) input, allowing easy integration into various existing industrial control systems and facilitating system expansion and upgrading.
Key Parameters
| Parameter Category | Specific Details |
|---|
| Power Supply & Electrical | DC power input range: 18 - 32 VDC, with reverse voltage protection to withstand a reverse voltage of -32 VDC; three-phase PT input voltage: 95 - 130 V/AC; CT input requires 3 - 7 A RMS at full load; outputs an analog signal of 0.5 - 4.5 VDC to the governor for precise speed regulation control |
| Physical Dimensions | Length: 10.77 inches (273.6 mm), width: 8.43 inches (214.1 mm), height: 2.33 inches (59.2 mm); weight: approximately 3 pounds (1398 grams). The compact size facilitates installation in control cabinets with limited space |
| Environmental Resistance | Operating temperature range: -40°C to 70°C, adaptable to extreme industrial environments such as severe cold and high temperatures; can withstand an impact force of 40G under 11-millisecond sawtooth pulses, ensuring stable operation in scenarios with vibration and impact; air cleanliness compatible with industrial environments of pollution degree 2 |
Application Scenarios
- Power Generation Field: It is one of the core control components of industrial generator sets. Whether it is a factory-owned emergency generator set or a multi-unit parallel system in large-scale power stations, it can ensure the stability and reliability of power output.
- Oil and Gas Industry: It can be used to monitor the speed and load of key equipment such as power equipment of drilling platforms and pipeline compressors, prevent equipment failures caused by load imbalance, and ensure the continuous operation of extraction and transportation links.
General Industrial Scenarios: In the motor control of production lines in the manufacturing industry and the power supporting systems of large-scale industrial equipment, it can accurately control the speed and load of equipment, reduce equipment wear and tear, and improve the stability and efficiency of the entire production process.
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