{"product_id":"9907-173-woodward-module-load-sharing-120-volt","title":"9907-173 | Woodward Module Load Sharing 120 Volt","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward 9907-173\u003c\/strong\u003e is a \u003cstrong\u003eLoad Sharing Module (LSM Series)\u003c\/strong\u003e designed for paralleling generator sets and managing load distribution across multiple engines or generators. It ensures \u003cstrong\u003ebalanced real and reactive power sharing\u003c\/strong\u003e in synchronized applications, supporting both \u003cstrong\u003eisochronous and droop load sharing modes\u003c\/strong\u003e. The 9907-173 is compatible with both Woodward and non-Woodward speed controls, making it a versatile solution for industrial and power generation settings.\u003c\/p\u003e\n\n\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Load Sharing Module (LSM Series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Woodward 9907 Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Isochronous and droop load sharing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 115\/230 VAC (95–130 or 190–260 VAC), 50–400 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e Approx. 5 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCT Inputs:\u003c\/strong\u003e 3-phase, 3–7 Arms at full load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePT Inputs:\u003c\/strong\u003e 3-phase, 100–240 VAC line-to-line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Output:\u003c\/strong\u003e ±3 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Type (Alternative):\u003c\/strong\u003e PWM\/GenDec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDroop Range:\u003c\/strong\u003e 0–10% speed reduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e Up to 95% RH (non-condensing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Resistance:\u003c\/strong\u003e 40 G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvervoltage Category:\u003c\/strong\u003e Category III\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Rating:\u003c\/strong\u003e IP54\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 273.6 mm × 59.2 mm × 214.1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.5 kg (2500 g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Panel-mounted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Load Sharing Modes:\u003c\/strong\u003e Isochronous (constant frequency) and droop (proportional sharing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with both Woodward and non-Woodward speed controls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Phase Sensing:\u003c\/strong\u003e CT and PT inputs for accurate power measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Droop:\u003c\/strong\u003e 0–10% speed reduction range for fine-tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e 40G shock resistance and IP54 environmental rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse Voltage Protection:\u003c\/strong\u003e Up to -32 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvervoltage\/Undervoltage Protection:\u003c\/strong\u003e Up to 80 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial power plant generator paralleling\u003c\/li\u003e\n\u003cli\u003eMarine power generation systems\u003c\/li\u003e\n\u003cli\u003eCogeneration facilities\u003c\/li\u003e\n\u003cli\u003eBackup power systems\u003c\/li\u003e\n\u003cli\u003eUtility grid-tie applications\u003c\/li\u003e\n\u003cli\u003eCaterpillar engine load sharing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount on panel in generator control cabinet\u003c\/li\u003e\n\u003cli\u003eConnect 115\/230 VAC power supply\u003c\/li\u003e\n\u003cli\u003eWire 3-phase CT inputs (3–7 Arms at full load)\u003c\/li\u003e\n\u003cli\u003eConnect 3-phase PT inputs (100–240 VAC line-to-line)\u003c\/li\u003e\n\u003cli\u003eWire ±3 VDC analog output to governor speed bias input\u003c\/li\u003e\n\u003cli\u003eConfigure isochronous or droop mode per application\u003c\/li\u003e\n\u003cli\u003eTest load sharing performance with varying loads\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between isochronous and droop load sharing?\u003c\/strong\u003e\u003cbr\u003eA: Isochronous maintains constant frequency regardless of load; droop allows slight frequency decrease with increasing load for stable parallel operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can it work with non-Woodward governors?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 9907-173 is compatible with both Woodward and non-Woodward speed controls.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the analog output signal?\u003c\/strong\u003e\u003cbr\u003eA: ±3 VDC speed bias signal to the governor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many generators can share load?\u003c\/strong\u003e\u003cbr\u003eA: Typically up to 16 generators can be paralleled on a single load sharing bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the droop adjustment range?\u003c\/strong\u003e\u003cbr\u003eA: 0–10% speed reduction, adjustable for optimal load sharing characteristics.\u003c\/p\u003e\n\n\u003ch3\u003eModel Selection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e9907-173 = \u003cstrong\u003eLoad Sharing Module (LSM Series)\u003c\/strong\u003e for parallel generator operation\u003c\/li\u003e\n\u003cli\u003eVerify governor accepts ±3 VDC speed bias input\u003c\/li\u003e\n\u003cli\u003eConfirm CT ratio (3–7 Arms) matches your instrument transformers\u003c\/li\u003e\n\u003cli\u003eFor automatic synchronization + load control, consider 9907-005 (Master Synchronizer)\u003c\/li\u003e\n\u003cli\u003eFor diesel engine-specific applications, verify Caterpillar compatibility if applicable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53789844013240,"sku":"9907-173","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/9907-004.png?v=1784278482","url":"https:\/\/www.globalpetroparts.com\/products\/9907-173-woodward-module-load-sharing-120-volt","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}