{"product_id":"ge-multilin-l30cv03muhf8lh6ar7c-line-differential-system-relay","title":"GE Multilin L30CV03MUHF8LH6AR7C Line Differential System Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin L30CV03MUHF8LH6AR7C\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eL30CV03MUHF8LH6AR7C\u003c\/strong\u003e Line Differential System Relay, operates as a dedicated hardware component for high-speed transmission line protection and multi-terminal fault isolation within electrical power grids.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eL30CV03MUHF8LH6AR7C\u003c\/strong\u003e: Advanced rack-mounted line differential protection relay variant equipped with specialized high-speed communication interfaces, optical channel provisions, and comprehensive power system measurement capabilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eL30CV03MUHF8LH6AR7C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Multilin SR-series horizontal\/vertical enclosure form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard auxiliary control voltage rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eLine differential and phase fault isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eDual optical\/serial teleprotection ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetering Inputs\u003c\/td\u003e\n\u003ctd\u003eThree-phase voltage and current transformer inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eRack or panel draw-out case mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet and Deterministic Network Processing\u003c\/h3\u003e\n\u003cp\u003eThe internal digital signal processor executes high-speed Fourier transforms and phase-angle comparisons across synchronous sampling channels to detect internal line faults within sub-cycle intervals. Optical communication links manage deterministic data exchanges between local and remote line terminals, applying advanced channel delay compensation to maintain time-synchronized differential tripping decisions. Integrated waveform capture and event recording buffers store pre- and post-fault data streams without interrupting primary protection algorithms.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does this protective relay support live module extraction or draw-out handling while energized?\u003c\/p\u003e\n\u003cp\u003eA: Draw-out extraction is strictly restricted while the unit is energized; auxiliary control power and current transformer shorting blocks must be engaged prior to unlatching the chassis.\u003c\/p\u003e\n\u003cp\u003eQ: How is time synchronization maintained across remote relay terminals in a differential scheme?\u003c\/p\u003e\n\u003cp\u003eA: Synchronization utilizes dedicated optical communication channels or external IRIG-B \/ Precision Time Protocol (PTP) inputs to align sampling windows across terminals.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanisms prevent false tripping during severe external through-fault conditions?\u003c\/p\u003e\n\u003cp\u003eA: The relay applies dynamic dual-slope percentage restraint characteristics combined with harmonic blocking logic to remain stable during high current external faults with CT saturation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all current transformer (CT) secondary circuits are securely short-circuited at external test switches before withdrawing or servicing the relay chassis.\u003c\/li\u003e\n\u003cli\u003eVerify that auxiliary control power and grounding connections conform to station design standards to prevent ground loop transients and protect internal communication transceivers.\u003c\/li\u003e\n\u003cli\u003eRoute optical fiber communication cables carefully, adhering to minimum bend radius specifications to avoid signal attenuation or packet loss on the teleprotection link.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE FANUC","offers":[{"title":"Default Title","offer_id":52676676878648,"sku":"L30CV03MUHF8LH6AR7C","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/L30-N00-VUH-F8L-H6L-LXX-NXX-R7C1.jpg?v=1783930627","url":"https:\/\/www.automodulexpert.com\/products\/ge-multilin-l30cv03muhf8lh6ar7c-line-differential-system-relay","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}