Product Core Brief
- Model: P141, part of MiCOM P40 Agile family
- Brand: ALSTOM / GE Grid / GE Vernova / Schneider Electric, depending on manufacturing generation
- Series: MiCOM P40 Agile / P14x Feeder Management Relay
- Core Function: Feeder protection relay providing overcurrent, earth fault, autoreclose, measurement, control, and communication functions for overhead lines and underground cables.
- Product Type: Numerical Feeder Protection Relay / IED
- Key Specs: Overcurrent and earth fault protection | Autoreclose | Measurement and monitoring | Programmable logic | Event and disturbance recording | Substation communication interfaces | Universal auxiliary supply and 1 A / 5 A CT support on many builds
- Condition: New Original / New Surplus
Product Introduction
ALSTOM MiCOM P40 Agile P141 is a numerical feeder protection relay belonging to the MiCOM P40 Agile / P14x family. It is used for protection, control, measurement, and monitoring of overhead lines and underground cables across distribution and transmission voltage levels.
The P141 typically provides overcurrent and earth fault protection, automatic reclosing, breaker control, event recording, disturbance recording, and communication with SCADA, DCS, or substation automation systems. Depending on the installed generation and option code, it may support serial and Ethernet-based substation protocols, including IEC 61850 on selected models.
This product has appeared under multiple brand labels over its lifecycle, including ALSTOM, GE Grid / GE Multilin, GE Vernova, and Schneider Electric. The ALSTOM label usually indicates an earlier or legacy build. Newer builds may carry GE Vernova or Schneider Electric branding. Always confirm the nameplate, option code, firmware version, and communication option before procurement.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | MiCOM P40 Agile P141 |
| Product Type | Feeder protection relay / IED |
| System Platform | Substation, industrial power, utility and rail auxiliary power systems |
| Core Protection | Overcurrent and earth fault protection |
| Control and Monitoring | Autoreclose, breaker control, measurement, event and disturbance recording |
| Communication | Serial and/or Ethernet substation protocols; IEC 61850 on selected builds |
| Installation | Panel-mounted relay; withdrawable case on many P40 Agile variants |
Exact CT/VT ratings, auxiliary supply range, binary I/O count, communication ports, and firmware depend on the installed option code and generation.
Quality Control Process
- Nameplate verification: Confirm model P141, option code, serial number, firmware version, and brand label.
- Hardware inspection: Check front HMI, terminal block, communication ports, and case condition.
- Power-up check: Verify auxiliary supply acceptance, display, LED indication, and self-diagnostics.
- Function check: Confirm protection elements, binary inputs/outputs, trip logic, and communication where test fixtures allow.
- Final packing: Record test results, apply asset labels, and ship with protective packaging.
Replacement Pitfall Guide
❗ Confirm the brand generation. P141 may carry ALSTOM, GE Grid, GE Vernova, or Schneider Electric labels; function and option codes must match the installed unit.
❗ Verify the option code. Communication protocol, CT rating, auxiliary supply, and I/O configuration are option-dependent.
❗ Do not assume IEC 61850 support. Only selected P141 builds include IEC 61850 or Ethernet options.
❗ Check case size and mounting. P40 Agile relays may differ in TE width, terminal type, and panel cutout.
❗ Confirm firmware and setting file compatibility. Replacement requires matching or convertible configuration data.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| ALSTOM MiCOM P40 Agile P141 | Same P141 option code | Direct | Like-for-like when option code, firmware, CT/VT, and communication match. |
| ALSTOM P141 | GE Vernova / Schneider P141 | Needs Adaptation | Confirm option code, protocol, I/O map, and setting file conversion. |
| ALSTOM P141 | MiCOM P142 / P143 / P144 | Needs Adaptation | Higher-function models may require I/O, logic, and protection scheme review. |
| ALSTOM P141 | Non-MiCOM feeder relay | Not Recommended | Requires full protection scheme, wiring, and communication redesign. |
- Typical use: MV/HV feeder protection, underground cable protection, overhead line protection, substation automation, industrial power distribution, rail traction power supply, and legacy MiCOM spare replacement.
- Key verification points: P141 option code, brand generation, firmware version, communication protocol, CT/VT rating, auxiliary supply, binary I/O, case size, and existing setting file.
