{"product_id":"lr20025-woodward-protection-relay-new-original-stock","title":"LR20025 Woodward Protection Relay | New \u0026 Original Stock","description":"\u003ch2\u003eWoodward LR20025 MFR13 Series Multifunction Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-fidelity signal processing in decentralized power networks, the \u003cstrong\u003eWoodward LR20025\u003c\/strong\u003e (\u003cstrong\u003eMFR13\u003c\/strong\u003e Multifunction Unit) provides direct physical\/electrical execution. The hardware operates as a high-precision multifunction protection relay that monitors three-phase voltage, frequency, and power parameters across wind turbine generators and grid-tie interfaces.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLR20025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.85 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e96 mm x 72 mm x 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Sensing Range\u003c\/td\u003e\n\u003ctd\u003e250 - 690 VAC (3-Phase Direct Sensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Sensing Range\u003c\/td\u003e\n\u003ctd\u003e0.5 - 5 A (Via External CT Secondary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Compatibility\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz (Auto-sensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Methodology\u003c\/td\u003e\n\u003ctd\u003eTrue RMS (Class 1 Accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eCAN Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscrete Inputs\u003c\/td\u003e\n\u003ctd\u003e1 Configurable Digital Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscrete Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Independent Relay Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eV\/Hz and Field-Oriented Vector Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe device tracks electrical line variables to support external V\/Hz and field-oriented vector control systems during synchronization. Its high-resolution True RMS sensing evaluates phase angle deviations and provides real-time harmonic distortion suppression profiles. The 8 independent discrete relay outputs drive local interlocking circuits, establishing rapid actuator loop feedback response metrics when grid voltage transients cross safe trip limits. This ensures that field-side fault energy is isolated before thermal heat sink dissipation profiles in the adjacent inverter assemblies exceed operational tolerances.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the current sensing inputs of the LR20025 be connected directly to the primary power lines?\u003c\/p\u003e\n\u003cp\u003eA: No. The current sensing architecture relies on external current transformers with a secondary output range of 0.5 to 5 A. Direct connection to primary high-voltage conductors will result in catastrophic failure of the internal measurement circuitry.\u003c\/p\u003e\n\u003cp\u003eQ: How does the device handle communication failures on the CAN bus interface?\u003c\/p\u003e\n\u003cp\u003eA: The CAN bus interface works independently of the localized protective relay logic. If a network disruption occurs, the internal processor continues to execute over\/under voltage and frequency protection parameters based on physical input sampling, driving the local discrete relay outputs autonomously.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the housing within a standard panel cutout or secure it using a verified DIN rail adapter to maintain mechanical stability under high-vibration conditions.\u003c\/li\u003e\n\u003cli\u003eRoute all three-phase high-voltage sensing cables (250 - 690 VAC) through separate conduit layouts away from low-voltage DC signals and CAN bus data lines.\u003c\/li\u003e\n\u003cli\u003eVerify that the external current transformer secondary wires are properly grounded at a single point before completing termination at the current input block.\u003c\/li\u003e\n\u003cli\u003eConnect the main chassis grounding point directly to the central plant electrical earth using a heavy-gauge copper braid to minimize common-mode noise issues.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42870825975898,"sku":"8441-1138","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/201._026fdf8b-4c4e-4601-be41-65df1314a9ff.jpg?v=1772768715","url":"https:\/\/www.spareoil.com\/products\/lr20025-woodward-protection-relay-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}