{"product_id":"ds3800ngdd1c1b-ge-fanuc-mark-iv-field-ground-detector-card","title":"GE Fanuc DS3800NGDD1C1B Field Ground Detector Card","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe DS3800NGDD1C1B is a specialized Field Ground Detector Card developed by General Electric for the Speedtronic Mark IV turbine control system. This module provides critical protection by continuously monitoring the isolation resistance between the generator field windings and the chassis ground. Engineered for the demanding environments of power plants and heavy industrial turbine sites, it detects leakage currents that indicate insulation breakdown. By identifying ground faults at an early stage, the DS3800NGDD1C1B helps prevent short circuits and rotor damage, serving as a vital component in maintaining the structural integrity of the excitation system.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the GE Speedtronic Mark IV turbine control platform.\u003c\/li\u003e\n\u003cli\u003eMonitors generator field winding isolation resistance to detect insulation degradation.\u003c\/li\u003e\n\u003cli\u003eFeatures high-impedance sensing inputs for accurate ground fault detection.\u003c\/li\u003e\n\u003cli\u003eIncludes onboard potentiometers for precise threshold calibration of ground fault sensitivity.\u003c\/li\u003e\n\u003cli\u003eEquipped with diagnostic test points for system troubleshooting and maintenance.\u003c\/li\u003e\n\u003cli\u003eModular PCB architecture designed for standard Mark IV card rack mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThis module is used in heavy industrial turbine control applications, specifically within power generation facilities utilizing the Speedtronic Mark IV control system. It is essential for protecting generator excitation systems from ground faults and insulation failures.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDS3800NGDD1C1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Fanuc \/ General Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSpeedtronic Mark IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Type\u003c\/td\u003e\n\u003ctd\u003eField Ground Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e125 VDC \/ 250 VDC Sensing Compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStandard Mark IV Card Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the system power is completely disconnected before inserting or removing the card from the rack.\u003c\/li\u003e\n\u003cli\u003eHandle the PCB by the edges to prevent electrostatic discharge (ESD) damage to sensitive components.\u003c\/li\u003e\n\u003cli\u003eVerify that the card is fully seated in the backplane connector to ensure reliable signal contact.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation within the cabinet to maintain operating temperatures within the 0 to 55 deg Celsius range.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for all field signal connections to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003ePerform calibration of sensitivity potentiometers only by qualified personnel using appropriate diagnostic tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch3\u003eWhat does the 1C1B suffix indicate?\u003c\/h3\u003e\n\u003cp\u003eThe 1C1B suffix represents the hardware revision level of the board. 1C denotes the specific circuit pattern and layout, while 1B indicates a minor revision for improved thermal stability and signal filtering, maintaining full backward compatibility with earlier versions.\u003c\/p\u003e\n\u003ch3\u003eIs this card compatible with other Speedtronic systems?\u003c\/h3\u003e\n\u003cp\u003eThe DS3800NGDD1C1B is specifically engineered for the Mark IV system. It is not intended for use in other generations of Speedtronic controls unless explicitly specified by the manufacturer.\u003c\/p\u003e","brand":"GE FANUC","offers":[{"title":"Default Title","offer_id":50601205268732,"sku":"DS3800NGDD1C1B","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_9417be36-612e-4316-9d98-c3dbf6a3003a.jpg?v=1784851639","url":"https:\/\/www.electronicplc.com\/products\/ds3800ngdd1c1b-ge-fanuc-mark-iv-field-ground-detector-card","provider":"Electronic PLC","version":"1.0","type":"link"}