{"product_id":"ge-multilin-ur-8bv-ct-vt-input-module","title":"GE Multilin UR-8BV CT\/VT Input Module","description":"\u003ch2\u003eGE Multilin UR 8BV CT\/VT Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for current‑transformer and voltage‑transformer signal acquisition in UR‑series protection networks, the \u003cstrong\u003eGE Multilin UR 8BV\u003c\/strong\u003e (\u003cstrong\u003eUR-8BV\u003c\/strong\u003e CT\/VT Input Module) provides direct analog front‑end processing for phase, ground, and auxiliary measurement channels across Universal Relay platforms.\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\u003eUR‑8BV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\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\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\u003eUR Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eCT\/VT Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSignal Types\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eCT inputs, VT inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eAssociated Software\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eEnerVista UR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUR chassis slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eFunctional Role\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eAnalog measurement interface for protection elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy‑Current Probe Scaling \u0026amp; Rotor Dynamics (TSI‑Aligned Behavior)\u003c\/h3\u003e\n\u003cp\u003eAlthough UR‑series modules are primarily electrical‑measurement devices, the UR‑8BV follows Multilin’s established analog‑conditioning rules used in turbine supervisory interfaces. CT\/VT channels maintain stable scaling across wide dynamic ranges, ensuring predictable behavior when interfacing with machinery‑protection elements that depend on rotor‑speed or flux‑related measurements. Cross‑talk suppression is implemented through channel‑to‑channel isolation, reducing induced noise between adjacent CT circuits. Gap‑voltage validation principles used in eddy‑current probes translate here as stable biasing and reference‑voltage monitoring within the analog front end, supporting deterministic relay‑element performance.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the UR‑8BV be hot‑swapped?\u003c\/strong\u003e A: No. The module must be removed only when the UR chassis is de‑energized to avoid transient analog‑input disturbances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the UR‑8BV add significant burden to CT circuits?\u003c\/strong\u003e A: The module presents a standard low‑burden input typical of UR‑series CT interfaces. It does not require special CT sizing beyond standard protection‑class ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does firmware compatibility affect operation?\u003c\/strong\u003e A: Firmware must match the relay’s supported UR revision set. Mismatched firmware may prevent proper scaling or analog‑channel initialization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the relay is fully de‑energized before inserting or removing the module.\u003c\/li\u003e\n\u003cli\u003eRoute CT and VT wiring separately from digital I\/O conductors to reduce noise coupling.\u003c\/li\u003e\n\u003cli\u003eMaintain shield continuity and ground shields at a single termination point to avoid ground‑loop interference.\u003c\/li\u003e\n\u003cli\u003eVerify terminal torque and polarity on CT\/VT connections before energizing the relay.\u003c\/li\u003e\n\u003cli\u003eUse EnerVista UR to validate analog‑channel scaling and confirm correct phasing during commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48164632002750,"sku":"UR8BV","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-07-07_17-32-15_69e48925-2853-42b2-b7a1-232f9e373796.png?v=1783419095","url":"https:\/\/www.autooiltech.com\/ar\/products\/ge-multilin-ur-8bv-ct-vt-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}