{"product_id":"ge-multilin-g30-generator-protection-relay","title":"GE Multilin G30 Generator Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin G30\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eG30\u003c\/strong\u003e Generator Protection Relay, operates as a microprocessor-based electrical verification and protection component within the GE UR (Universal Relay) Series platform. It integrates high-speed algorithmic tripping matrices, automated breaker control logic, and industrial SCADA telemetry natively at the protective relay tier to maintain generator stator, rotor, and transformer circuit stability parallel to master processing bus execution cycles.\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\u003eG30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE (General Electric) \/ Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 8.5 lbs (Draw-out case dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eModular draw-out case construction for standard 19-inch racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eMicroprocessor-Based Generator Protection Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eUR (Universal Relay) Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Protection\u003c\/td\u003e\n\u003ctd\u003eGenerator differential, overcurrent, ground fault, thermal overload, voltage\/frequency anomalies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl \u0026amp; Automation\u003c\/td\u003e\n\u003ctd\u003eBreaker control, auto-reclosing matrix, FlexLogic™ configuration engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetering Parameters\u003c\/td\u003e\n\u003ctd\u003ePhase current vectors, line voltage, active\/reactive power ($kW\/kVar$), energy, frequency, power factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Capture\u003c\/td\u003e\n\u003ctd\u003eSequence of Events (SOE), waveform oscillation capture, disturbance logging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850, Modbus RTU\/TCP, DNP3, TCP\/IP, OPC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperator Interface\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution, full-color graphical LCD HMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Humidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95% non-condensing maximum limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Altitude\u003c\/td\u003e\n\u003ctd\u003eUp to 2000 m without structural thermal derating\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 Processing Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP and Substation Protocol Synchronization:\u003c\/strong\u003e The G30 handles high-speed network integration via concurrent IEC 61850, Modbus TCP, and DNP3 protocol processing. System metrics and fault status bits sync directly with plant DCS or SCADA nodes within deterministic millisecond windows, ensuring immediate signaling across the utility grid control layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexLogic™ Control Logic and Element Allocation:\u003c\/strong\u003e The relay features the FlexLogic™ engineering matrix, which supports up to 16 independent FlexElements. This localized processing engine lets field engineers construct customized, hardware-tier boolean networks for interlocks, breaker tripping sequences, and automated reclosing loops without mid-tier logic delays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Density Scaling and Waveform Oscillography Matrix:\u003c\/strong\u003e The internal draw-out assembly organizes incoming current transformer (CT) and voltage transformer (VT) analog lines into isolated signal conditioning modules. If an electrical threshold is crossed, the processor triggers a sub-millisecond disturbance recording loop, capturing high-resolution waveform data to analyze transient grid dynamics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What structural hardware variations define the application boundary between the G30 and the larger G40 protection relay models?\u003c\/p\u003e\n\u003cp\u003eA: The G30 is optimized for small to medium-sized steam, hydro, and combustion generator configurations. The G40 model features higher maximum fault current boundaries and an expanded modular slot profile to house a higher density of discrete I\/O channels for complex, multi-breaker generator topologies.\u003c\/p\u003e\n\u003cp\u003eQ: How does the G30 modular draw-out case design isolate active current transformer (CT) secondary loops during maintenance removal?\u003c\/p\u003e\n\u003cp\u003eA: The draw-out chassis incorporates integrated self-shorting mechanical CT contacts within the stationary terminal block. When the internal relay module is pulled out of the enclosure, these contacts close automatically prior to connector separation, preventing high-voltage open-circuit transients across the running CT loops.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47705120833726,"sku":"G30","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_e46cea1e-93b3-4412-8166-b2ee677a2be7.png?v=1782268898","url":"https:\/\/www.autooiltech.com\/products\/ge-multilin-g30-generator-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}