Description
ALSTOM NRD109475-8RDA44670G01-SA44670 Control/Interface Board for Industrial Power and Drive Systems
The ALSTOM NRD109475-8RDA44670G01-SA44670 appears to be a plug-in control/interface board used in legacy ALSTOM control cabinets—typically found in turbine governing, excitation systems, or medium/high-voltage drive panels. From my experience with similar ALSTOM part families, this kind of module is built for long service life, stable signal handling, and drop-in replacement with minimal reconfiguration. You might notice that it’s usually backplane-powered and designed to slot straight into the OEM rack, which keeps downtime short and commissioning simple.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week for in-stock items; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express options: FedEx, UPS, DHL
Key Features
- Drop‑in replacement for ALSTOM racks: Designed to plug into the original backplane, so you typically avoid rewiring or re-terminating field I/O.
- Mixed‑signal handling: In many cases supports a combination of digital status/control and conditioned analog signals used by protection and regulation loops.
- Stable operation under cabinet conditions: Built for continuous duty in utility or industrial environments where 24/7 uptime matters.
- Service-friendly front panel: Typically includes front fasteners and guided insertion to reduce the risk of connector damage during change-outs.
- Proven in legacy fleets: Commonly used in existing ALSTOM installations—turbines, drives, or excitation—where compatibility and form‑fit‑function are essential.
Technical Specifications
| Brand / Model | ALSTOM NRD109475-8RDA44670G01-SA44670 |
| HS Code | 8538.90 (Parts suitable for industrial control/switchgear assemblies) |
| Part Type | Plug‑in control/interface PCB module for ALSTOM cabinets |
| Power Requirements | Backplane‑powered by host rack (no external supply required in most cases) |
| Signal I/O Types | Mixed analog and digital signals via rack connectors; field terminations handled on mating terminal boards |
| Communication Interfaces | Proprietary ALSTOM backplane interface; service headers may vary by board revision |
| Operating Temperature | Typically 0–55°C within a ventilated control cabinet (actual rating dependent on revision) |
| Installation Method | Plug‑in to ALSTOM rack/backplane; front panel fastening for mechanical retention |
| Dimensions & Weight | Plug‑in PCB form factor; commonly comparable to Eurocard‑style control boards (varies by series) |
Application Fields
This model is typically specified as a replacement or expansion board in:
- Steam and gas turbine control cabinets (governing, protection, sequencing)
- Excitation and generator control systems in power plants
- Medium/High‑voltage drive systems for industrial motors and auxiliaries
- Substation automation and auxiliary process control panels using ALSTOM racks
Advantages & Value
- Form‑fit‑function compatibility: Helps avoid redesign and requalification—critical for regulated sites.
- Downtime reduction: Quick swap into the existing rack; no field rewiring in most cases.
- Cost control on legacy assets:</-strong> Extends the useful life of installed ALSTOM systems without full cabinet replacement.
- Technical support access: Guidance on revision matching, commissioning tips, and basic functional checks.
A maintenance lead at a combined‑cycle plant told us, “We swapped it like‑for‑like and were back up in under two hours.” That seems to be the typical experience when the rack and firmware revisions are matched correctly.
Installation & Maintenance
- Cabinet environment: Install in a clean, dry, ventilated control cabinet. Maintain ambient temperatures in the standard control range.
- ESD handling: Use antistatic wrist straps, ESD bags, and handle the board by its edges.
- Backplane seating: Align guides, insert evenly, and secure front panel screws to avoid connector stress.
- Wiring: Field I/O typically remains on the existing terminal boards; verify tightness and labeling during replacement.
- Firmware/configuration: If the board holds configuration, ensure revision compatibility and back up parameters prior to change‑out.
- Routine checks: Periodically inspect for dust accumulation; clean with dry air; review event logs and perform loop checks after outages.
- Spare strategy: Keeping one tested spare on the shelf usually shortens recovery time during unplanned trips.
Quality & Certifications
- Manufactured under ISO 9001 quality systems (typical for ALSTOM OEM production)
- CE marking generally applicable at the cabinet/system level
- UL/CSA recognition may apply to the assembled cabinet; board-level markings vary by revision
- RoHS status can vary with vintage; many later revisions are RoHS-compliant
- Warranty: 365 days
Supporting Components (for a complete fit)
- Rack/backplane assembly: Matching ALSTOM rack that supplies the backplane power and signal bus.
- Terminal interface boards: Field wiring termination modules that mate with the rack connectors.
- Ribbon/cable harnesses: OEM harnesses for inter‑board signaling and front‑panel routing.
- Front panel hardware: Guide rails and fastening screws for secure retention during vibration.
If you need help confirming interchangeability or revision alignment for NRD109475-8RDA44670G01-SA44670, share the installed rack part number and any firmware labels on your existing board. Matching those details typically ensures a smooth, first‑time fit.
Reviews
There are no reviews yet.