{"product_id":"is200edexg1b-general-electric-exciter-de-excitation-control-board","title":"IS200EDEXG1B | General Electric |  Exciter De-Excitation Control Board","description":"\u003ch2\u003eGE IS200EDEXG1B Exciter De‑Excitation Control Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for SCR‑based de‑excitation in EX2100e exciter systems, the \u003cstrong\u003eGE IS200EDEXG1B\u003c\/strong\u003e (\u003cstrong\u003eIS200EDEXG1B\u003c\/strong\u003e De‑Excitation Control Board) provides controlled removal of generator‑field stored energy during emergency shutdowns, using firing circuits, conduction sensing, and voltage hold‑up paths.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe documentation does not define any suffix variants or sub‑models for \u003cstrong\u003eIS200EDEXG1B\u003c\/strong\u003e. The board is treated as a single, fixed configuration within the EX2100e de‑excitation module family.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eIS200EDEXG1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified (follow EX2100e cabinet limits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eEX2100e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eExciter De‑Excitation Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eFunctional Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eSCR\/diode de‑excitation control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eFiring Inputs\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eTwo firing commands from EXTB (redundant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eVoltage Hold‑Up\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eRetains ±24 VDC for SCR firing during power loss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCurrent Sensing\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHall‑effect sensors with mechanical flux ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eLED Indicators\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eTwo red LEDs for current‑flow status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eTwo male vertical pin connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDe‑Excitation Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eGroup 1 (SCR) or Group 2 (diode) configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eManual Reference\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eEX2100e documentation set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundancy (TMR) 2oo3 Architecture\u003c\/h3\u003e\n\u003cp\u003eAs a GE protection‑class module, the IS200EDEXG1B aligns with deterministic exciter‑level timing and supports \u003cstrong\u003etriple modular redundancy\u003c\/strong\u003e across EX2100e shutdown logic. SCR firing commands are voted using a \u003cstrong\u003e2oo3 scheme\u003c\/strong\u003e, ensuring that no single failure can inhibit de‑excitation. The board’s conduction‑sense feedback is galvanically isolated through Hall‑effect sensors, supporting \u003cstrong\u003egalvanic isolation\u003c\/strong\u003e between field circuits and control electronics. During power‑loss events, the voltage hold‑up path ensures \u003cstrong\u003efail‑safe state execution\u003c\/strong\u003e by maintaining firing capability until stored field energy is fully removed.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many male pin connectors are present on the IS200EDEXG1B?\u003c\/strong\u003e A: The board includes two vertical male pin connectors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the board require calibration after installation?\u003c\/strong\u003e A: No calibration parameters are defined. SCR firing and conduction sensing operate as fixed‑function circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the board detect field current?\u003c\/strong\u003e A: Hall‑effect sensors coupled through a mechanical flux ring detect bi‑polar or uni‑directional current depending on SCR or diode de‑excitation mode.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDe‑energize all exciter circuits before handling the board.\u003c\/li\u003e\n\u003cli\u003eLabel all cables prior to removal to ensure correct reconnection.\u003c\/li\u003e\n\u003cli\u003eRemove the conduction ring carefully; reinstall a new ring during replacement.\u003c\/li\u003e\n\u003cli\u003eVerify jumper positions (JP1, JP6) match the original board before energizing.\u003c\/li\u003e\n\u003cli\u003eEnsure the firing‑control circuit is functional before applying break‑over voltage to BOD networks.\u003c\/li\u003e\n\u003cli\u003eUse insulated tools when accessing connectors or jumpers to avoid accidental shorts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48144116973758,"sku":"IS200EDEXG1B","price":620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/general-electric-is200edcfg1aed-exciter-direct-current-feedback-board-ujkeuas1rku.png?v=1759132183","url":"https:\/\/www.autooiltech.com\/products\/is200edexg1b-general-electric-exciter-de-excitation-control-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}