{"product_id":"ge-t35e00hch-transformer-protection-relay","title":"GE T35E00HCH Transformer Protection Relay","description":"\u003cp\u003eConfigured for high-speed differential protection across complex multi-breaker power systems, the \u003cstrong\u003eGE Multilin T35E00HCH\u003c\/strong\u003e (\u003cstrong\u003eT35E00HCH\u003c\/strong\u003e Transformer Protection Relay) provides direct physical\/electrical execution. This specialized Universal Relay (UR) platform device monitors up to six independent sets of current transformers (CTs), running real-time adaptive harmonic restraint algorithms to isolate internal winding faults while preventing malicious trips during transformer inrush or overexcitation events.\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\u003eT35E00HCH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE Multilin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCanada \/ USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard 4U sub-rack horizontal drawout relay mass profile (~6.5 kg net)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 19-inch rack-mount horizontal chassis footprint (4U high)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eTransformer differential protection with adaptive harmonic restraint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Transformer Inputs\u003c\/td\u003e\n\u003ctd\u003eTracks up to 6 sets of independent three-phase CT circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850 Ed. 1 \u0026amp; Ed. 2, Modbus RTU\/TCP, DNP3, Routable GOOSE (R-GOOSE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcess Bus Interfaces\u003c\/td\u003e\n\u003ctd\u003eIEC 61850-9-2LE, IEC 61869, IEC 61850-9-2 Hardfiber compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Interface\u003c\/td\u003e\n\u003ctd\u003eIntegrated 7-inch color graphical display for real-time visualization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Density Scaling\u003c\/td\u003e\n\u003ctd\u003eSupports up to 120 discrete inputs or 72 contact outputs via expansion slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity Architecture\u003c\/td\u003e\n\u003ctd\u003eCyberSentry framework for NERC CIP, IEEE 1686, and IEC 62443 compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Topology\u003c\/td\u003e\n\u003ctd\u003eEngineered for breaker-and-a-half, ring bus, and multi-winding applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control and Power Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity and Processing Speed:\u003c\/strong\u003e The relay utilizes a high-performance multi-processor architecture to maintain optimal backplane bus communication velocity across internal sensing and contact modules. Digital signal processors simultaneously sample multi-channel current and voltage vectors, allowing sub-cycle differential equations to execute reliably alongside transient disturbance recorders without introducing logic processing bottlenecks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP and Deterministic Network Redundancy:\u003c\/strong\u003e The device incorporates high-speed Ethernet communication infrastructure optimized for deterministic station bus and process bus architectures. By utilizing advanced networking protocols such as Routable GOOSE (R-GOOSE) and sample value streams over IEC 61850-9-2LE, the relay publishes sub-millisecond trip commands over wide-area automation architectures to isolate faults instantly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the T35E00HCH prevent false tripping during initial transformer energization?\u003c\/p\u003e\n\u003cp\u003eA: The relay implements an adaptive harmonic restraint function that continuously checks the ratio of the second and fifth harmonic currents relative to the fundamental frequency. When a high percentage of second harmonic current is detected—a physical characteristic of transformer core inrush—the module restrains the differential trip element from executing.\u003c\/p\u003e\n\u003cp\u003eQ: Can the high-density I\/O modules on this relay handle up to 120 inputs concurrently?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The modular 4U chassis can be ordered with multiple high-density digital input modules to scale up to 120 individual inputs. The internal backplane processor continuously scans all contact slots synchronously, ensuring that complex interlocking and breaker status metrics are parsed without delaying primary protection elements.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Layout Alignment, Clearance Constraints, and Mechanical Seating:\u003c\/strong\u003e Insert the 4U horizontal drawout case into a standard 19-inch panel cutout or instrument rack framework. Secure the outer assembly with four heavy-duty panel screws, verifying that the central copper earthing stud is connected directly to the rack structure. Maintain a minimum clearance of 100 mm above and below the enclosure to ensure proper vertical convective heat dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation, Wireway Constraints, and Shield Grounding:\u003c\/strong\u003e Route all low-potential CT secondary wires and fiber-optic process bus links through enclosed steel conduits separate from high-voltage AC auxiliary power lines or discrete breaker trip circuits. Ground all current transformer circuit neutral lines at a single, common point, and connect the Ethernet cable shields straight to the main copper earth bus to prevent electromagnetic fields from distorting sample measurements.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47901803118782,"sku":"T35E00HCH","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_6e371c91-37d2-449e-b889-ab0ec24541eb.png?v=1782899951","url":"https:\/\/www.autooiltech.com\/ar\/products\/ge-t35e00hch-transformer-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}