Description
Product Overview
The ALSTOM DEP232 029.223003 is listed as a digital feeder protection relay intended for electrical distribution protection applications. A feeder relay monitors electrical conditions in a power circuit and evaluates measured quantities against configured protection settings. When a fault condition is detected, the protection logic can initiate a trip command to isolate the affected feeder through its associated circuit breaker. This function helps limit equipment damage and reduce the impact of electrical faults on the wider distribution network.
For maintenance engineers, the main consideration is the relay’s relationship with the existing protection scheme. Current-transformer and voltage-transformer ratios, trip-circuit wiring, protection curves, time delays, and coordination settings must match the approved system design. A replacement relay that shares the same model designation may still require configuration checks before it can be placed into service. The ALSTOM DEP232 029.223003 should therefore be evaluated against the installed device’s nameplate, terminal arrangement, firmware or configuration records, and protection settings.
Available product information associates the DEP232 with feeder protection functions, electrical measurements, and communication with supervisory systems. IEC 60870-5-103 and Modbus RTU are reported in one listing, but the exact communication ports and protocol availability for order number 029.223003 have not been independently confirmed.
The ALSTOM DEP232 029.223003 is best approached as a protection-system spare requiring engineering verification, not as a generic control module. Before installation, preserve the original relay settings, confirm the trip and alarm logic, and perform the commissioning tests required by the site’s protection procedures. The conflicting description found in another listing makes physical identification especially important.
Product Introduction (Non-Templated)
A feeder protection relay is part of the electrical system’s fault-clearing chain. Incorrect CT ratios, mismatched trip contacts, or unsuitable protection settings can compromise selectivity and cause unnecessary outages. Replacement planning must include more than confirming that the relay fits the panel.
The DEP232 029.223003 is listed as an ALSTOM feeder protection relay. Before procurement approval, compare the installed unit’s front label, terminal diagram, auxiliary supply marking, and configuration records. Do not energize a replacement until the protection settings and trip-circuit behavior have been checked by qualified personnel.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ALSTOM |
| Model | DEP232 |
| Part Number | 029.223003 |
| Product Type | Digital feeder protection relay, subject to physical confirmation |
| Primary Application | Feeder protection |
| Overcurrent Protection | Reported; exact stages and curves not verified |
| Earth-Fault Protection | Reported; exact implementation not verified |
| Automatic Reclosing | Reported as a possible function; exact configuration not verified |
| Electrical Measurements | Phase current and other power-system measurements reported |
| Communication Protocol | IEC 60870-5-103 / Modbus RTU reported; exact options not verified |
| Digital Inputs / Outputs | Programmable I/O reported; channel count not verified |
| Auxiliary Supply | Not verified |
| CT Input Rating | Not verified |
| VT Input Rating | Not verified |
| Trip Contact Rating | Not verified |
| Operating Temperature | Not verified |
| Mounting Arrangement | Not verified |
| Firmware Version | Not verified |
The protection and communication descriptions above come from a secondary product record, not a verified manufacturer datasheet. Treat them as identification leads rather than approved engineering specifications.
DEP232 029.223003
Related Products
The following ALSTOM products are listed in the broader protection and distribution equipment category. They are not confirmed direct replacements for 029.223003.
- DAP232 590.043150 — Digital distribution automation and protection device.
- VCS232 590.043158 — Vacuum contactor control and protection unit.
- MVAJM14JB1004A1 — Numerical protection relay.
- MVAJM25LA1010A — Motor protection relay.
- PIB310 — Transformer differential protection relay.
- PIB201A — Feeder protection relay.
Frequently Asked Questions
Q1: What is the ALSTOM 029.223003 used for?
Available product records identify it as a digital feeder protection relay. Its reported application is monitoring feeder electrical quantities and initiating protection actions when configured fault conditions are detected. Exact functions should be checked against the device documentation.
Q2: Does the support overcurrent and earth-fault protection?
Both functions are reported in the available product description. The number of protection stages, operating curves, residual-current measurement method, and setting ranges are not verified for this exact order number.
Q3: Does it support IEC 60870-5-103 or Modbus RTU?
These protocols are reported in a secondary listing. Confirm the installed communication hardware, firmware, and configuration before integrating the relay with a SCADA or substation automation system.
Q4: Can I hot-swap the ?
Do not assume hot-swap capability. Protection relays are connected to instrument transformers and trip circuits. Follow the approved isolation and replacement procedure, including precautions for CT secondary circuits.
Q5: Does the support firmware v3.1?
A verified firmware version or v3.1 compatibility statement is not available. Check the installed relay’s firmware identification and the approved configuration documentation.
Q6: Can another ALSTOM protection relay replace the ?
Not automatically. A replacement must match the protection functions, CT/VT inputs, auxiliary supply, contact ratings, communication requirements, physical arrangement, and approved protection settings.
Q7: What should be tested before returning the replacement relay to service?
At minimum, verify the auxiliary supply, measured current and voltage inputs, configured protection settings, binary inputs, alarm outputs, trip contacts, communication, and event records. Complete secondary-injection and trip-circuit tests according to the site’s approved commissioning procedure.
Important procurement qualification: The identification as a feeder protection relay is supported by one product record, but another record describes 029.223003 as a serial interface/digital output module.
Before publishing this page as a definitive technical description or purchasing the part, verify the physical nameplate and terminal diagram.
