Product Core Brief
- Model: 8101-HI-TX-02
- Brand: GE Multilin (GE Vernova / SR Family)
- Series: GE Multilin 8101 Feeder Management Relay
- Core Function: Digital feeder management relay for primary protection, control, and monitoring of distribution feeders.
- Product Type: Feeder Management / Protection Relay
- Key Specs: High-voltage control power (HI) | serial communications (TX) | draw-out or panel-mount construction typical for SR feeder relays | EnerVista configuration support
- Condition: New Surplus / Refurbished (legacy product; confirm exact status against nameplate)
Product Introduction
The GE Multilin 8101-HI-TX-02 is a member of the GE Multilin SR feeder management relay family. It is designed for protection, control, and monitoring of medium-voltage distribution feeders, combining overcurrent and ground-fault protection with metering, event recording, and communication interfaces suitable for industrial and utility SCADA systems.
The order code can be read as:
- 8101: GE Multilin 8101 feeder management relay platform
- HI: High-voltage control power supply option, typically 88–300 VDC or 70–265 VAC
- TX: Communications option, typically RS485/RS422 serial with Modbus RTU or DNP3 support
- 02: Configuration / option code; exact meaning depends on the 8101 product manual
Authoritative OEM documentation for the exact 8101-HI-TX-02 configuration is limited in public sources, so it should be treated as a legacy spare until the relay nameplate, firmware revision, and installed option modules are confirmed. For new projects, GE Vernova’s current feeder protection platforms such as Multilin 350, F60, F650, or Multilin Agile Feeder should be evaluated as migration alternatives.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Feeder Management Relay |
| Brand | GE Multilin (SR Family) |
| Model | 8101-HI-TX-02 |
| Application | Distribution feeder protection and monitoring |
| Control Power | High-voltage range (HI), typically 88–300 VDC or 70–265 VAC |
| Communications | Serial communications (TX), typically RS485/RS422 |
| Configuration Code | 02; confirm against OEM manual and nameplate |
| Software | EnerVista configuration software typical for GE Multilin SR relays |
| Construction | Panel-mount or draw-out case typical for SR feeder relays |
| Typical Industries | Utilities, oil & gas, petrochemical, manufacturing, infrastructure |
Exact CT/VT input ratings, I/O configuration, protection functions, and communication protocols must be verified against the OEM nameplate and product manual.
Quality Control Process (DYNAMIC GENERATION)
- Order-code verification: Confirm 8101-HI-TX-02 matches the site control power, communication network, and I/O requirements.
- Visual and mechanical inspection: Check front panel, display, LEDs, terminal blocks, connectors, and PCB for corrosion, heat stress, or mechanical damage.
- Control power test: Apply the correct HI-range control voltage and verify relay boot-up, display, and LED status indicators.
- Input and metering check: Verify CT/VT inputs and measured values against site ratios if test equipment is available.
- Protection and output test: Validate overcurrent, ground-fault, and trip output operation per applicable test procedures.
- Communication test: Confirm serial communication with SCADA or configuration software before final packing.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Do not substitute HI with LO without verifying control power. HI typically indicates a high-voltage control supply; LO typically indicates a lower AC/DC range. Applying the wrong control voltage can damage the relay or prevent operation.
❗ Confirm the TX communications option. TX usually indicates serial communications; if the site requires Ethernet, IEC 61850, or dual-port networking, a different suffix or platform may be needed.
❗ Verify the “02” option code. This suffix may affect I/O modules, firmware options, or hardware configuration. It should not be ignored during replacement.
❗ Do not assume direct interchangeability with 750/760 or UR relays. The 8101, 750/760, F60, F650, and Multilin 350 are different platforms; migration requires engineering review.
❗ Back up settings before replacement. Even with the same model code, firmware revisions and site-specific setpoints must be verified or reloaded via EnerVista.
❗ Confirm product lifecycle status. Many legacy GE Multilin relays are discontinued or limited to surplus supply; current alternatives should be evaluated for long-term maintenance planning.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE 8101-HI-TX-02 | GE 8101-HI-TX-02 | Direct | Match full order code, firmware, and option configuration. |
| GE 8101-HI-TX-02 | GE 8101 with different suffix | Needs Verification | Confirm control power, communications, I/O, and firmware options. |
| GE 8101-HI-TX-02 | GE Multilin 750/760 series | Not Direct | Different product family; not a drop-in replacement. |
| GE 8101-HI-TX-02 | GE Multilin 350 / F60 / F650 / Agile Feeder | Migration | Current GE Vernova feeder protection platforms; requires engineering review for I/O, protocol, and wiring mapping. |
Benchmarks:
- GE Multilin SR 8101 feeder management relay for distribution feeder protection.
- High-voltage control power option (HI), suitable for DC or AC control supplies.
- Serial communications option (TX), typically RS485/RS422 for SCADA integration.
- Suitable for legacy system maintenance, retrofit projects, and spare-parts replacement.
- For new installations, consider GE Vernova Multilin 350, F60, F650, or Multilin Agile Feeder as current alternatives.
