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Woodward 9904-173
Product Name: Woodward 9904-173 Load Sharing Module (Analog Output)
Product Introduction: The 9904-173 is a load sharing module designed for use with engines equipped with speed controls. It accepts a ±3 Vdc speed setting input, a 0.5 to 4.5 Vdc input, or a PWM (Pulse Width Modulation) input. The module enables load sharing between engines equipped with non-Woodward speed controls and Woodward electronic engine controls, or with other Woodward load sharing modules.
Detailed content
Technical Specifications:
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DC Power Supply: 18–32 Vdc, approx. 5 W
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AC Power Supply (selectable via jumper): 95–130 or 190–260 Vac line-to-line, 50–400 Hz, approx. 10 W
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3-Phase PT Input: 95–130 or 190–260 Vac line-to-line, 50–400 Hz; PT input load is 1.6 W/phase at 240 Vac, 0.4 W/phase at 120 Vac
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3-Phase CT Input: 3–7 A at full load; CT input load is 0.1 VA/phase at full load
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Load Sharing Input: 0–3 Vdc into 25 kΩ impedance in isochronous mode, open in droop mode
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Synchronization Input: Compatible with optional Woodward SPM-A synchronizer
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Weight: 0.95 kg
Functional Features:
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Provides isochronous and droop load sharing capability for generator set applications
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Allows manual adjustment of output level via external 10 kΩ potentiometer
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External droop switch wired in series with auxiliary breaker contacts; droop mode is selected when the droop switch or auxiliary breaker is open
Application Scenarios: Can be integrated with Woodward SPM-A synchronizers, SPM-D synchronizers, Automatic Generator Load Control (AGLC), and Automatic Power Transfer and Load Control (APTL) systems.
