{"product_id":"ge-l90-h05-hth-f8l-h6p-l8l-n6n-s6n-u6l-w75-protection-relay","title":"GE L90-H05-HTH-F8L-H6P-L8L-N6N-S6N-U6L-W75 Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin L90-H05-HTH-F8L-H6P-L8L-N6N-S6N-U6L-W75\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eL90\u003c\/strong\u003e Line Differential Protection Relay, operates as a dedicated hardware component for phase-segregated transmission line protection, high-speed single-pole tripping, and automated breaker reclosing synchronization within substation automation and utility grids. The microprocessor-based automation platform evaluates high-voltage overhead lines, underground cables, and tapped transformer circuits natively at the hardware tier to execute real-time power system telemetry isolation.\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\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\u003eL90-H05-HTH-F8L-H6P-L8L-N6N-S6N-U6L-W75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin (General Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eUniversal Relay (UR) Platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCanada \/ United States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e2.5 kg (5.51 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e172 mm x 100 mm x 120 mm (Height x Width x Depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Power Supply\u003c\/td\u003e\n\u003ctd\u003eMulti-voltage input: 110 VDC, 220 VDC, 110 VAC, 220 VAC (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Measurement Precision\u003c\/td\u003e\n\u003ctd\u003eVoltage: +\/- 0.5%; Current: +\/- 0.5%; Power: +\/- 0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaveform Oscillography Sampling\u003c\/td\u003e\n\u003ctd\u003e64 samples per cycle resolution (up to 64 records retained in memory)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSequence of Events (SOE) Capacity\u003c\/td\u003e\n\u003ctd\u003e1024 time-tagged events with 0.5 ms hardware scan of digital inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Data Logger\u003c\/td\u003e\n\u003ctd\u003eUp to 16 configurable channels with 1 sample\/cycle\/channel max resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Protection Functions\u003c\/td\u003e\n\u003ctd\u003eGround Distance (21G, 59N, 27X), Phase Distance (21P, 27X), Synchrocheck (25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMulti-Ended Fault Location Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin 2% margin of error limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C (-40 to +158 biographies F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature Limits\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C (-40 to +185 biographies F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProtection Relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Drive Communications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP Deterministic Networks and Process Bus Delivery\u003c\/strong\u003e The protection relay integrates directly with modern digitized substation infrastructures through an embedded IEC 61850 process bus architecture. This communication interface delivers deterministic sample value frame processing parallel to internal protection logic execution, permitting standardized network mapping and secure user command logging across secure wide area telemetry rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Density Scaling and Wide Area Phasor Synchronization\u003c\/strong\u003e The platform scales local binary and analog channels through modular, flexible I\/O card matrices matched to specific substation physical interfaces. The internal software engine integrates standard phase-segregated line protection loops with synchronized synchrophasor measurement units (PMU), mapping live wide-area data points straight to graphical distance zone configurations without overloading host bus capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the L90 relay perform phase-segregated fault identification under transient line imbalances?\u003c\/p\u003e\n\u003cp\u003eA: The relay uses high-speed analog sampling at 64 samples per cycle to resolve localized voltage and current vectors independently for each individual phase. If a phase-to-ground or phase-to-phase transient breaches programmed graphical zone boundaries, the unit instantly targets the faulted path, triggering standalone single-pole breaker execution without de-energizing clean phases.\u003c\/p\u003e\n\u003cp\u003eQ: What defensive hardware metrics manifest if local infrastructure security settings are breached?\u003c\/p\u003e\n\u003cp\u003eA: The onboard network security layers deploy hardware dual-permission access control and centralized command logging. Any unauthorized network communication or manual configuration alteration attempts outside of verified security credentials instantly lock local terminal control and set an active cybersecurity log alert entry over the substation bus link.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":47693163692222,"sku":"L90-H05-HTH-F8L-H6P-L8L-N6N-S6N-U6L-W75","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-05_17-48-06_2647901a-f196-47e4-b653-5d0a425766bc.png?v=1782097332","url":"https:\/\/www.autooiltech.com\/products\/ge-l90-h05-hth-f8l-h6p-l8l-n6n-s6n-u6l-w75-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}