{"product_id":"woodward-9907-147-overspeed-protection-system","title":"Woodward 9907-147 Overspeed Protection System","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Woodward \u003cstrong\u003e9907-147\u003c\/strong\u003e is a high-integrity overspeed protection system part of the ProTech 203 series. It monitors prime mover speed through three independent magnetic pickups (MPUs) and utilizes a two-out-of-three (2oo3) voting architecture to ensure reliable engine and turbine protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e9907-147.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e18 to 32 Vdc (24 Vdc nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Sensing Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100 Hz to 32 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Point Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e250 Hz to 25 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Response Time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e40 ms maximum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e±(0.05% x Trip Point in Hz + 2 Hz).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-25°C to +60°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e482.6 mm x 310.4 mm x 142.7 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLess than 17 lbs (approx. 7.3 kg).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDe-energize-to-trip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-out-of-Three Voting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEmploys three independent speed-sensing units that must agree for a trip to activate, significantly reducing false trips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Replacement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach of the three units can be replaced while the device is running without tripping the prime mover.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Self-Test:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an integral frequency generator that allows online testing of each unit individually.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Sampling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMonitors and samples speed every 5 milliseconds to ensure rapid detection of anomalies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Access:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes a lockable enclosure and a single key switch to toggle between Monitor and Program modes, preventing unauthorized changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual LCD Displays:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach sensing unit is equipped with a two-line, 16-character LCD to show current speed, peak speed, and trip status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Indicators:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDedicated LEDs provide immediate visual feedback on CPU health, MPU failure, and trip status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent Power Sources:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach unit is operated from a separate power source to further enhance system reliability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":46440314536126,"sku":"9907-147","price":360.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/woodward-9907-162-digital-governor-turbine-control-phinchrricg.png?v=1773284227","url":"https:\/\/www.autooiltech.com\/products\/woodward-9907-147-overspeed-protection-system","provider":"AutoOilTech Limited","version":"1.0","type":"link"}