{"product_id":"woodward-5441-693-automatic-breaker-closure-synchronizer","title":"Woodward 5441-693 Automatic Breaker Closure Synchronizer","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eWoodward 5441-693\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-precision digital synchronizer and safeguard for generator-to-bus or generator-to-grid paralleling operations. This module continuously analyzes the electrical relationship between two live systems, verifying that voltage, frequency, and phase angle remain within strictly defined safety windows. By preventing out-of-phase breaker closure, the 5441-693 eliminates the risk of catastrophic mechanical failure and electrical transients. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, providing critical protection for utility-scale turbines and standby power systems.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 5441-693 integrates high-speed digital sampling with deterministic relay output logic.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWoodward\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5441-693\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital Synchronizer \/ Sync-Check Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Input (PT)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100–150 VAC (Generator \u0026amp; Bus side)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40–80 Hz (Standard 50\/60 Hz systems)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSlip Frequency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdjustable ±0.1 Hz to ±2.0 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePhase Angle Window\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConfigurable ±5° to ±30°\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePhase Accuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWithin ±1°\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 50 ms (Time for relay closure permit)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC Nominal (18–32 VDC range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS-485 Modbus RTU\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e35mm DIN Rail (EN 60715)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIEEE C37.106, CE, UL 508\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.8 kg (1.76 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe Woodward 5441-693 optimizes the safety and efficiency of paralleling switchgear through several core engineering features:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandardized Safety Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module strictly adheres to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIEEE C37.106\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estandards. This ensures that the breaker closure command occurs only during ideal synchronization conditions, protecting generator windings and shafts from the extreme torque generated by improper phase matching.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Deterministic Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a response time of less than 50 ms, the 5441-693 issues the \"Sync Permit\" signal instantly when parameters align. This rapid execution prevents the system from drifting out of the phase window during the mechanical delay of the circuit breaker closure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Noise Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWoodward designs the 5441-693 to meet\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIEC 61000-6-2\/4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eindustrial EMC standards. The module maintains signal integrity even when mounted in cabinets adjacent to high-frequency variable speed drives (VSDs) or large power transformers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Telemetry Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe onboard RS-485 Modbus RTU port transmits real-time slip frequency, phase angle, and voltage data to the plant DCS or SCADA system. This enables operators to monitor the synchronization process remotely and diagnose governor or AVR (Automatic Voltage Regulator) tuning issues without additional instrumentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Woodward 5441-693 compatible with legacy analog systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 5441-693 serves as a primary choice for retrofitting legacy turbine governors. Its DIN-rail mounting and 24 VDC power requirement allow it to replace older, bulky analog sync-check relays while providing superior digital accuracy and telemetry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the generator frequency drifts during the synchronization window?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module continuously monitors the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSlip Frequency\u003c\/strong\u003e. If the generator accelerates or decelerates beyond your configured setpoint (e.g., ±0.5 Hz), the 5441-693 immediately denies the \"Sync Permit\" signal, blocking the breaker from closing until the governor stabilizes the speed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require a specific Potential Transformer (PT) ratio?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 5441-693 accepts a standard PT secondary input of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100–150 VAC\u003c\/strong\u003e. As long as your PTs scale the primary bus and generator voltages into this range, the module will accurately calculate the voltage matching window (typically configurable between ±5% to ±10%).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit shipped in original Woodward packaging?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe supply the 5441-693 as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. Every unit ships in its factory-sealed packaging, ensuring it meets all original manufacturer specifications and performance standards for mission-critical synchronization.\u003c\/p\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42870863855706,"sku":"5441-693","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/218.jpg?v=1772077505","url":"https:\/\/www.spareoil.com\/products\/woodward-5441-693-automatic-breaker-closure-synchronizer","provider":"SpareOil Automation","version":"1.0","type":"link"}