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Woodward 9907-252 Generator Load Sharing Module
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Warranty：1 year
Condition：Brand new and factory sealed
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Detail
- Product NameWoodward 9907-252 Generator Load Sharing Module
- Item NO.9907-252
- Weight1.4000 kg = 3.0865 lb = 49.3835 oz
- CategoryOTHER
- BrandOTHER
- Creation Time2026-10-28
- Woodward 9907-252: An analog load-sharing interface for compatible generator speed controls, with a 0.5 to 4.5 VDC output.
9907-252
An analog load-sharing interface for compatible generator speed controls, with a 0.5 to 4.5 VDC output.
Contact info
Specifications
| DC supply range | 18 to 32 VDC |
| Power consumption | Approximately 5 W |
| Overvoltage protection limit | +80 VDC |
| Reverse-voltage protection limit | -32 VDC |
| PT input voltage | 100 to 240 VAC line-to-line |
| PT input frequency | 50 to 400 Hz |
| PT burden at 240 VAC | 1.6 W per phase |
| PT burden at 120 VAC | 0.4 W per phase |
| CT full-load input | 3 to 7 A RMS |
| CT full-load burden | 0.1 VA per phase |
| Load-sharing input voltage | 0 to 3 VDC |
| Load-sharing input impedance | 25 kΩ in isochronous mode |
| SPM-A synchronizer input response | 0.75% speed change per volt, with 5% speed-change/volt control |
| External speed-trim adjustment | ±7.5%, with 5% speed-change/volt control |
| Speed-trim potentiometer | 10 kΩ external |
| External reference voltage | 5 VDC |
| External reference input impedance | 10 kΩ |
| Load-signal gain adjustment | 0.86 to 2.0 VDC per A RMS, minimum range |
| Analog output range | 0.5 to 4.5 VDC |
| Zero-error output voltage | 2.50 ±0.05 VDC |
| Analog output impedance | 2 kΩ |
| Droop adjustment | 0 to 11%, with 5% speed-change/volt control |
| Droop contact terminals | 13 and 14 |
| Operating temperature | -40 to +70 °C |
| Salt-fog test concentration | 5% NaCl at 35 °C |
| Salt-fog test exposure | 48 hours wet and 48 hours dry |
| Humidity test | 95% RH at 65 °C, non-condensing; 5 cycles of 24 hours |
| Swept-sine vibration test | 4 G, 5 mm, 5 to 2000 Hz; 3 hours minimum per axis |
| Shock test | 40 G, 11 ms sawtooth pulse |
| Overvoltage category | Category III |
| Air-quality classification | Pollution Degree 2 |
Speed-change percentages assume a speed control gain of 5% speed change per volt. Verify CT wiring and the output interface before commissioning.
Description
Woodward 9907-252 is a generator load-sharing module with an analog control output. It measures three-phase electrical signals to establish the generator load signal. Load-sharing lines coordinate compatible units operating in parallel. Its adjustment provisions support load gain, droop and speed trim. The module interfaces with suitable generator speed controls and optional synchronizing equipment. Correct current-transformer polarity and control matching are important during installation.
Load Measurement & Adjustment
Convert generator electrical measurements into a load-related control signal.
Set load gain and droop to coordinate the connected generator with the installation.
Load Sharing & Droop Operation
Coordinate real-load distribution between generators using compatible load-sharing lines and speed controls.
Use the droop contact arrangement and adjustment to suit the generator operating strategy.
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Transaction Cases
A Germany customer urgently needed a replacement for a discontinued automation component. After reviewing the product label, technical parameters, and application details, our engineers recommended a compatible alternative and provided photos and test videos before shipment. The alternative performed well, enhancing the customer's confidence in our technical capabilities and leading to multiple repeat orders.
An Indian customer still had doubts after initial online communication with us, so they visited our company in person for a face-to-face meeting and product inspection. This visit increased the customer's trust and led to the successful placement of their first order. Over the next few years, we completed multiple orders and established a stable, long-term partnership.
A Malaysia customer needed a specific automation component and compared products and services from several suppliers online. After nearly three weeks of careful consideration, our sincere communication, professional service, and reliable product quality won the customer's trust. After receiving the product and using it for several weeks without any problems, the customer gave us positive feedback and subsequently placed multiple orders.
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