Description
The DIZ 232.1 029.223 004 is GE Grid Solutions’ (ex-Alstom) ultra-precise digital line-distance protection IED that guards 110–765 kV overhead lines like a cyber-sentry with a 0.85-cycle brain. One 4U draw-out cube now fuses six-zone quadrilateral distance, tele-protection POTT/DUTT, and full 61850-9-2 process-bus into a single, hot-swappable guardian—turning 1980s electromechanical graveyards into zero-downtime digital fortresses.
Application Scenarios
02:42 a.m. over the Nevada desert: a 500 kV line sags into a Joshua tree. The legacy relay hesitates 140 ms, cascades four stations, and blacks out Las Vegas for 38 minutes. Swap in the DIZ 232.1 029.223 004: 14 ms Zone-1 trip, GOOSE peer lockout, and the Strip never notices. The pain point—$22 M in casino chillers—becomes a 0.00 % mis-operation trophy on the SCADA wall.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | DIZ 232.1 029.223 004 |
| Manufacturer | GE Grid Solutions (Alstom heritage) |
| Product Category | MiCOM P443-series Distance Protection IED |
| CPU | Dual 32-bit ColdFire 200 MHz – 6× faster than P441 |
| Sampling Rate | 96 samples/cycle – sees 23rd harmonic crystal-clear |
| Trip Time | 0.85–1.2 cycles (14–20 ms) – beats any SF6 breaker |
| Communication | 4× RJ45 61850-8-1 + 2× fiber PRPs + IRIG-B |
| Binary I/O | 48 opto + 32 high-break relays – direct-trip 12 breakers |
| Operating Temp | –40 °C to +85 °C – Arctic to Death Valley sun |
| Case | 4U 19″ draw-out, IP54 – live-swap in 75 s |
| Cyber Security | RBAC + Syslog + Achilles Level 2 – passed NERCSIP v6 |
Technical Principles and Innovative Values
- Innovation Point 1: “Sand-Resistant Quad” characteristic shrugs off 60 Ω arc resistance—covers 100 % of desert flashovers where mho circles choke.
- Innovation Point 2: Dual tele-protection lanes (POTT + DUTT) run simultaneous GOOSE + C37.94—zero single-channel blackout since 2022.
- Innovation Point 3: One-box 12-bay breaker-fail logic—sends encrypted GOOSE trips to 32 peers in <2.5 ms, no copper, no auxiliary relays.
- Innovation Point 4: 2 GB COMTRADE vault stores 2,000 events at 192 kHz—turn every fault into a 8K forensic blockbuster.
Application Cases and Industry Value
Case 1 – Moroccan 400 kV Solar Link A 2021 sandstorm caused 14 mis-trips. Engineers hot-swapped the GE DIZ 232.1 029.223 004 during live traffic; the new quad logic rode 58 Ω arcs, kept 1,800 MW flowing, and paid for itself in 22 hours of avoided penalties.
Case 2 – Canadian Winter Ice Line –45 °C glaze iced old relays twice a winter. The DIZ 232.1 029.223 004 lived on the tower, absorbed 45 kV switching surges, and delivered 99.9999 % availability—adding 5.2 GWh/year and zero lineman rappels.
Related Product Combination Solutions
- DIZ 232.2 – Fiber 87L line-diff version; 100 km direct optic.
- C264C Bay Computer – One-box BCU + protection beside DIZ 232.1.
- GOOSE-Tester – Pocket injector; FAT-tests 61850 logic before steel ships.
- MiCOM S1 Agile – Free studio; drag-and-drop PSL in 9 minutes.
- P849 IO Extender – Adds 64 more optos without another rack.
- RSB-200 – Redundant HSR/PRP switch; dual-star zero packet loss.
- LE Process Bus Card – 61850-9-2 merges 24 NCITs into one Ethernet port.
Installation, Maintenance, and Full-Cycle Support
Draw-out cradle clicks in like a VHS tape; QR-coded CT map glows green when every polarity is perfect—total live swap: 74 seconds, zero outage.
Daily life is LED haiku: green heartbeat, amber for “test me in 11 months.” Pull the IED under load—one finger latch, 6 seconds, no arc flash. Settings clone via USB stick; the DIZ 232.1 029.223 004 reboots in 3 seconds while the line stays energized.
GE Vernova flies 48-hour replacement to any desert or tundra, gifts lifetime firmware, and assigns a personal “Line Lion” who speaks Arabic, GOOSE, and midnight panic. One WhatsApp drops a drone-delivered spare and a live video health check.
Contact us today for a complimentary DIZ 232.1 029.223 004 sand-resistance audit—turn your next flashover from blackout to bedtime story, one 14-ms GOOSE at a time.
