GE Multilin T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX Transformer Protection Relay The GE Multilin T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX, also cataloged as the T35 Transformer Protection Relay, operates as a dedicated hardware...
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SKU: T35N03HCHF8FH6CM8FP6D06DWXX
Country of origin: USA
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Description
GE Multilin T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX Transformer Protection Relay
The GE Multilin T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX, also cataloged as the T35 Transformer Protection Relay, operates as a dedicated hardware component for three-phase transformer differential protection within GE Universal Relay (UR) substation automation systems. The relay performs current acquisition, protection logic execution, event recording, and communication processing through modular I/O and network interfaces.
Hardware Specifications
Parameter
Specification
Model
T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX
Brand
General Electric (GE Multilin)
Origin
GE Grid Solutions
Dimensions
19-inch rack chassis, horizontal mount
Operating Temp
-20 deg C to +60 deg C
Power Consumption
Not specified in available documentation
Product Series
Universal Relay (UR) Family
Base Function
Transformer Protection System
Power Supply
High Voltage Power Supply, 125 / 250 VAC/DC
CPU Module
Standard CPU Module
HMI Interface
Enhanced graphical control panel with color LCD display
Oscillography up to 64 samples per cycle; SOE record up to 1024 events
Firmware, Network and I/O Architecture
The GE Multilin T35 uses a modular hardware architecture with configurable CT/VT acquisition modules, digital input/output cards, and communication interfaces. The UR platform supports deterministic substation communication through IEC 61850 GOOSE messaging, client/server services, and redundant Ethernet network configurations including PRP, RSTP, and HSR.
The relay firmware executes transformer protection algorithms including percentage differential protection (87T) with harmonic restraint, instantaneous differential protection (87P), restricted earth fault protection (87G), and transformer overexcitation supervision (24). The modular I/O structure allows channel expansion for multi-winding transformer applications and breaker current monitoring.
Frequently Asked Questions
Q: Does the T35 support hot-swap replacement of installed modules? A: Module replacement procedures must follow GE Multilin UR maintenance instructions. Hot-swap operation should not be assumed unless specifically supported by the installed hardware revision and firmware configuration.
Q: What communication interfaces are available on the T35-N03-HCH-F8F-H6C-M8F-P6D-06D-WXX? A: The relay provides RS485 communication and redundant Ethernet interfaces supporting IEC 61850, Modbus RTU/TCP, DNP 3.0, and IEEE 1588 PTP synchronization.
Q: How are transformer current inputs configured on this model? A: The specified configuration includes F8F, H6C, and M8F CT/VT modules for multiple current measurement channels used for transformer differential and protection functions.
Field Installation Guidelines
Install the relay in a compatible 19-inch rack enclosure with adequate mechanical support and grounding provisions. Verify CT polarity, phase identification, and secondary wiring before energizing protection inputs.
Use shielded communication cables for RS485 and Ethernet connections where required by the installation environment. Terminate cable shields according to site grounding practices to reduce electromagnetic interference.
Separate low-level communication wiring from high-current AC/DC power conductors. Confirm that CT circuits remain closed during maintenance operations and that all digital input/output wiring matches the configured protection logic.
Verify firmware compatibility, module recognition, and protection settings after installation. Perform secondary injection testing before placing the transformer protection system into service.
