GE T35E00VFHF8FH6AM8HP6E Multilin UR‑Series Transformer Protection Relay

The GE T35E00VFHF8FH6AM8HP6E is a comprehensive digital transformer protection relay belonging to GE Multilin UR platform. It delivers primary and backup protection for multi‑winding power transformers, integrating differential protection, overcurrent, thermal overload and fault recording functions, performing fast fault detection and tripping to avoid transformer damage inside power substations and industrial power systems.

This multifunction protection device is equipped with touch‑screen HMI, abundant digital I/O and multi‑protocol communication interfaces including IEC 61850 GOOSE. It supports FlexLogic customizable logic for substation automation interlock schemes. Original production has been discontinued. It is widely supplied as aftermarket spare parts for utility substation, petrochemical plant power‑room maintenance and protection‑system retrofitting projects.

Main Specifications

1. Brand:GE; Model:T35E00VFHF8FH6AM8HP6E; Type:Multilin UR‑Series Transformer Protection Relay
2. Protection Function:87T transformer differential, 50/51 overcurrent, 49 thermal overload, restricted earth‑fault protection
3. Communication Interface:Dual Ethernet, RS485, support Modbus TCP, IEC 61850 MMS and GOOSE protocol
4. Human‑Machine Interface:Built‑in color touch screen, local parameter setting, alarm display and event review
5. Logic Feature:FlexLogic programmable logic engine for user‑defined interlock and control schemes
6. Power Supply:Wide‑range AC/DC auxiliary power input for substation control‑power environment
7. Supply Status:Original production discontinued, available as tested surplus or refurbished spare parts

Core Functions

1. Implement high‑speed transformer differential primary protection with inrush restraint to prevent mal‑operation during transformer energization.
2. Execute multiple backup protection elements including phase/ground overcurrent, thermal overload and earth‑fault protection for transformer safety.
3. Record fault waveforms, event logs and disturbance data for post‑fault analysis and accident tracing of power‑system failures.
4. Support IEC 61850 GOOSE peer‑to‑peer signal transmission to realize inter‑relay fast interlock and breaker tripping control.
5. Adopt FlexLogic custom logic to reduce external auxiliary relay quantity and realize complex substation automation control requirements.
6. Serve as integrated protection, measurement and control core hardware for power transformers in power‑utility and heavy‑industry power systems.

Application Scenarios

1. Power‑utility substations, petrochemical plants, metallurgical enterprises and other sites equipped with large‑capacity power transformers.
2. Spare protection relay replacement and routine maintenance of existing GE Multilin T35 series substation automation cabinets.
3. Technical renovation and protection‑performance upgrade of aging transformer protection and control systems.
4. On‑site troubleshooting and replacement of faulty protection devices for continuously operating power‑supply units.
5. Spare‑parts stocking for system integrators and power‑system professional maintenance contractors.
6. Global aftermarket spare supply for technicians maintaining obsolete GE Multilin UR‑series legacy protection hardware.

FAQ

1. Q:What configuration software is used for T35E00VFHF8FH6AM8HP6E?
   A:It uses Enervista UR Setup software to complete protection setting, logic programming and disturbance‑data analysis.
2. Q:Does this relay support IEC61850 communication?
   A:Yes, it supports IEC61850 MMS, GOOSE, which can be directly connected to substation SCADA monitoring system.

3. Q:Is this GE transformer protection relay still in original production?
   A:GE original manufacturing has been discontinued, only tested surplus and refurbished spare units are available.