{"product_id":"gdc780be21-abb-3bhe004468r0021-circuit-board-unitrol-excitation-unit","title":"GDC780BE21 ABB 3BHE004468R0021 Circuit Board UNITROL Excitation Unit","description":"\u003ch3 class=\"\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe ABB GDC780BE21,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ecataloged under order reference 3BHE004468R0021,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance control and signal processing card engineered specifically for the UNITROL Excitation Systems.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis module functions as a critical logic executive within Distributed Control Systems (DCS),\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003efacilitating the precise regulation of synchronous generators.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBy utilizing advanced microprocessor technology,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe GDC780BE21 handles rapid data acquisition and executes complex control algorithms to maintain voltage stability and reactive power levels.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIts architecture is optimized for real-time synchronization between the power electronics stage and the supervisory network,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eensuring deterministic performance in mission-critical power generation environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eTechnical Hardware Schematics and Physical Data\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eModel Designation\u003c\/strong\u003e\u003cspan class=\"\"\u003eGDC780BE21\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eEngineering Order Number\u003c\/strong\u003e\u003cspan class=\"\"\u003e3BHE004468R0021\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eNet Component Weight\u003c\/strong\u003e\u003cspan class=\"\"\u003e0.\u003c\/span\u003e\u003cspan class=\"\"\u003e34 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eDimensions\u003c\/strong\u003e\u003cspan class=\"\"\u003e2 x 19.\u003c\/span\u003e\u003cspan class=\"\"\u003e6 x 26.\u003c\/span\u003e\u003cspan class=\"\"\u003e1 cm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eLogic Memory\u003c\/strong\u003e\u003cspan class=\"\"\u003e512 Kb Integrated Capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eI\/O Configuration\u003c\/strong\u003e\u003cspan class=\"\"\u003e16 Input\/Output Channels\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003ePower Consumption\u003c\/strong\u003e\u003cspan class=\"\"\u003e20W Nominal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSystem Series\u003c\/strong\u003e\u003cspan class=\"\"\u003eUNITROL \/ DCS Compatible\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eProtection Rating\u003c\/strong\u003e\u003cspan class=\"\"\u003eIP54 Equivalent (within housing)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eManufacturing Origin\u003c\/strong\u003e\u003cspan class=\"\"\u003eSweden\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe 3BHE004468R0021 utilizes a compact 2 cm profile,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003edesigned for streamlined installation within standard UNITROL excitation cubicles.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eDespite its low 20W power draw,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe card supports high-speed data processing through its 512Kb memory buffer,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eallowing for the storage of sophisticated control logic.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe hardware is ruggedized to maintain signal integrity in environments subject to electromagnetic interference and high-frequency switching noise.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eIndustrial Applications and System Integration\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe GDC780BE21 is a fundamental building block for heavy electrical infrastructure and automated power management.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ePrimary deployment scenarios include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eGenerator Excitation Control\u003c\/strong\u003e\u003cspan class=\"\"\u003eActing as the primary logic interface for regulating DC field current in hydroelectric,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethermal,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eand nuclear power plant generators.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSignal Coordination\u003c\/strong\u003e\u003cspan class=\"\"\u003eManaging 16 distinct I\/O channels to coordinate between field sensors,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eactuators,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eand the central control architecture.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eGrid Stability Management\u003c\/strong\u003e\u003cspan class=\"\"\u003eExecuting rapid response commands to maintain power factor correction and voltage regulation during grid fluctuations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eDCS Network Bridge\u003c\/strong\u003e\u003cspan class=\"\"\u003eServing as a communication node that links field-level excitation hardware to supervisory Ethernet router services for remote monitoring and diagnostics.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: What is the primary role of the GDC780BE21 in a UNITROL system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe GDC780BE21 functions as a high-speed control card that processes excitation logic and manages signal exchange between the generator hardware and the control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Does the 3BHE004468R0021 require a specific operating system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe board is pre-loaded with ABB’s proprietary embedded firmware designed to support the latest industrial protocols used in the UNITROL and DCS ecosystems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: How does the 512Kb memory capacity benefit the user?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis memory allows for the programming of extensive control logic and the storage of localized parameters,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eensuring the board can handle complex automation tasks independently if needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Is this board suitable for installation in harsh environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eYes,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe GDC780BE21 is engineered for industrial use and features high-grade components that operate reliably within the IP-rated enclosures of excitation cubicles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Can I integrate this module into an existing Ethernet network?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eWhile it interfaces through a backplane,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eit is fully compatible with system-level Ethernet router services for seamless data transmission to higher-level SCADA systems.\u003c\/span\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45518969176237,"sku":"3BHE004468R0021","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-3bhe004468r0021-gdc780be21-circuit-board-nwg1idpvypm.jpg?v=1766983375","url":"https:\/\/www.maxwellplc.com\/products\/gdc780be21-abb-3bhe004468r0021-circuit-board-unitrol-excitation-unit","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}