{"product_id":"ge-is200edffh1a-exciter-dc-fanned-feedback-board","title":"GE IS200EDFFH1A Exciter DC Fanned Feedback Board","description":"\u003ch1\u003eGE IS200EDFFH1A EX2100e Exciter DC Fanned Feedback Board\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE IS200EDFFH1A\u003c\/strong\u003e is an Exciter DC Fanned Feedback Board used within the EX2100e excitation control platform. It measures field current and field voltage at the SCR bridge and transfers feedback information to the excitation control system through a high-speed fiber-optic interface. The board performs signal scaling and conversion for closed-loop excitation control and supports dual-system and redundant control architectures.\u003c\/p\u003e\n\u003ch3\u003eFunction in the Excitation System\u003c\/h3\u003e\n\u003cp\u003eThe EDFF board is responsible for acquiring field current and field voltage feedback from the exciter bridge. These measurements are used by the excitation controller to regulate generator field excitation and maintain stable generator terminal voltage.\u003c\/p\u003e\n\u003cp\u003eField current is measured through a shunt installed in the DC field circuit. Field voltage is monitored through dedicated voltage feedback circuitry that can be configured to suit different bridge applications.\u003c\/p\u003e\n\u003ch3\u003eFiber-Optic Feedback Architecture\u003c\/h3\u003e\n\u003cp\u003eCommunication between the EDFF board and the EX2100e Excitation Auxiliary Interface (EAUX) is accomplished through a high-speed fiber-optic link.\u003c\/p\u003e\n\u003cp\u003eThe fiber-optic connection provides:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical isolation between EAUX and EDFF boards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-noise immunity in excitation system environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable transmission of field voltage and current feedback signals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupport for redundant control system architectures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSignal Processing\u003c\/h3\u003e\n\u003cp\u003eThe board converts measured current and voltage signals into frequency-based feedback signals for transmission to the control system.\u003c\/p\u003e\n\u003cp\u003eTwo dedicated voltage-to-frequency (V-F) conversion channels are used:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eField current feedback conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField voltage feedback conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe field voltage circuit includes eight selector settings that allow scaling of bridge voltage measurements according to the requirements of the specific excitation bridge configuration.\u003c\/p\u003e\n\u003ch3\u003eRedundant Control Support\u003c\/h3\u003e\n\u003cp\u003eThe IS200EDFFH1A is a Group H2 dual-system board designed for operation in redundant EX2100e excitation systems.\u003c\/p\u003e\n\u003cp\u003eThe architecture supports up to three control sections:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eM1 controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eM2 controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eC controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis arrangement allows feedback signals to be available within redundant control configurations used for critical generator excitation applications.\u003c\/p\u003e\n\u003ch3\u003eIntegration with the High Voltage Interface Module\u003c\/h3\u003e\n\u003cp\u003eWithin the EX2100e High Voltage Interface (HVI) assembly, the EDFF board operates alongside other interface modules.\u003c\/p\u003e\n\u003cp\u003eKey associated components include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEBAC Bridge AC Feedback Board for AC voltage feedback isolation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEAUX Excitation Auxiliary Interface Board\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEXAM Module for field ground detection functions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHSLA High-Speed Serial Link Interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTogether, these modules provide measurement, communication, isolation, and diagnostic functions for the excitation system.\u003c\/p\u003e\n\u003ch3\u003eField Ground Detection Interface\u003c\/h3\u003e\n\u003cp\u003eThe EDFF board works with the EXAM module during field ground monitoring operations. The EXAM module interfaces with the EAUX board and applies a low-frequency test signal across the field circuit through a sense resistor network.\u003c\/p\u003e\n\u003cp\u003eWhen a field ground condition exists, the resulting current generates a measurable voltage that is returned to the EAUX for Field Ground Detection (FGD) processing.\u003c\/p\u003e\n\u003cp\u003eIn redundant systems, either the M1 or M2 controller can provide the test signal, with controller selection managed by the C controller.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"___1vyiefv f1ddd56o f16vktn6 f1ahpp82 f11qra4b f1uinfot fibjyge fvueend f9yszdx f1fu4s3n f3l3pb3 f10ghnd0 f8fmt76 fjvbh62 f1qrqxae f1vw5qpk fc02sbz fxawf59 fymf513 f1aoyrul f1el8yx3 f1pymoxg f1ofu761 fe6itr f7coize f1794535 f1o0pw0q fbjjl9v fk1v6el f16pyhcb f1ixlhx9 f12zef0i flu5r5u f19haqzy f1owmcxx f1oddm8q f1004tna fcoaxci fh0ee9u f15v23i2 f1dmj53 f1r1gcv9 f14z1veh ffufd3x f1ypplot f1660cg\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eIS200EDFFH1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eExciter DC Fanned Feedback Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eEX2100e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGroup Variation\u003c\/td\u003e\n\u003ctd\u003eH2, Dual System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eI\/O Terminal Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eField Current and Voltage Feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelector Settings\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeedback Method\u003c\/td\u003e\n\u003ctd\u003eVoltage-to-Frequency Conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Link\u003c\/td\u003e\n\u003ctd\u003eHigh-Speed Fiber-Optic Link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber-Optic Purpose\u003c\/td\u003e\n\u003ctd\u003eSignal Transfer and Voltage Isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Immunity\u003c\/td\u003e\n\u003ctd\u003eHigh-Noise Immunity Supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Control Sections\u003c\/td\u003e\n\u003ctd\u003eUp to 3 (M1, M2, C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating System\u003c\/td\u003e\n\u003ctd\u003eDual System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Input Frequency\u003c\/td\u003e\n\u003ctd\u003eUp to 480 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 40 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eApplication Considerations\u003c\/h3\u003e\n\u003cp\u003eThe IS200EDFFH1A is a specialized excitation feedback board and should be matched to the corresponding EX2100e architecture and system configuration. Replacement boards should be selected according to the original group variation, redundancy requirements, and excitation control cabinet design.\u003c\/p\u003e\n\u003cp\u003eBecause field current and voltage scaling are part of the excitation control strategy, configuration settings should be verified during commissioning and maintenance activities.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary function of the IS200EDFFH1A board?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The board measures exciter field current and field voltage, converts these measurements into feedback signals, and transfers them to the EX2100e control system for excitation regulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why does the board use a fiber-optic communication link?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The fiber-optic link provides voltage isolation between the EDFF and EAUX boards while offering high immunity to electrical noise commonly present in excitation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the IS200EDFFH1A support redundant control systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The H2 dual-system version supports up to three control sections (M1, M2, and C) and is designed for use in redundant EX2100e excitation control architectures.\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":67882886987850,"sku":"IS200EDFFH1A","price":4200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/IS200EDCFG1ADC_2.jpg?v=1750059652","url":"https:\/\/www.topbrandsplc.com\/products\/ge-is200edffh1a-exciter-dc-fanned-feedback-board","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}