ALSTOM NRD108034 8RDB44674G01 SA44674.C

Product Description

The ALSTOM NRD108034 8RDB44674G01 SA44674.C is a comprehensive ordering code that specifies a fully configured numerical protection relay within Alstom’s grid automation portfolio. This identifier details the complete build of the device, where NRD108034 is the base relay model, 8RDB44674G01 defines the exact hardware assembly with all installed options, and SA44674.C specifies the application software and firmware version. The ALSTOM NRD108034 8RDB44674G01 SA44674.C is engineered to deliver advanced protection, control, and monitoring for medium-voltage feeders, transformers, or motors. Ordering the relay using this complete code ensures receipt of a factory-tested unit with all specified hardware and software features fully integrated and validated. The precise configuration encapsulated by NRD108034 8RDB44674G01 SA44674.C is crucial for meeting the specific technical requirements of complex protection schemes.

Product Parameters

• Manufacturer / Brand: Alstom (Grid Automation, now part of Hitachi Energy)

• Product Type: Numerical Protection Relay (e.g., Feeder Protection, Motor Protection)

• Base Model/Series: NRD108034

• Hardware Configuration Code: 8RDB44674G01 – Specifies the physical assembly, including I/O card types and quantities, communication modules, power supply, and chassis type.

• Software/Function Package: SA44674.C – Denotes the specific application software loaded, including the protection algorithms (overcurrent, thermal, etc.), control logic, and communication protocol stacks.

• Protection Functions: Typically includes a comprehensive suite such as overcurrent (phase and earth fault), thermal overload protection, voltage protection, frequency protection, and auto-reclosing.

• Control & Monitoring: Features programmable logic, sequence of events (SOE) recording, fault reporting, and high-accuracy metering for currents, voltages, power, and energy.

• Communication Protocols: Supports multiple protocols including IEC 61850, Modbus RTU/TCP, DNP3, and IEC 60870-5-103, as enabled by the hardware and software codes.

• Inputs/Outputs: Configured with a defined number of binary inputs, relay outputs, and analog inputs as per the 8RDB44674G01 specification.

Advantages and Features

• Pre-Configured and Tested Solution: The complete ALSTOM NRD108034 8RDB44674G01 SA44674.C package represents a turnkey unit, reducing engineering time and eliminating configuration risks associated with piecemeal assembly.

• Advanced Protection Algorithms: Utilizes sophisticated numerical algorithms for fast, selective, and reliable fault detection and clearance.

• Flexible Programmable Logic: Includes a configurable logic tool (CFC) for creating custom control sequences, interlocking, and alarm schemes without external hardware.

• Robust Cyber Security: Designed with modern security features such as role-based access control, password policies, and secure communication to protect critical grid assets.

• Comprehensive Data Recording: Offers detailed oscillography, event logs, and disturbance records for thorough post-fault analysis and system diagnostics.

• Intuitive Human-Machine Interface (HMI): Features a clear graphical display and keypad for local configuration, control, and real-time data visualization.

Application Cases in Key Fields

• Industrial Power Distribution: Serves as the main protection and control unit for medium-voltage feeders and transformers in manufacturing plants, mines, and oil & gas facilities.

• Utility Distribution Networks: Protects overhead and underground feeders in substations, often incorporating sensitive earth fault detection and auto-reclosing functions.

• Renewable Energy Plant Interconnection: Manages protection and control for the grid connection of solar farms or wind parks, including functions for voltage ride-through and power quality monitoring.

• Large Motor Protection: Provides complete protection for critical high-voltage motors, including thermal overload, stall, unbalance, and differential protection (if applicable).

Comparison with Competing Products

When compared to feeder protection relays from Siemens (SIPROTEC 7SJ8), Schneider Electric (Sepam), or GE (Multilin), the ALSTOM NRD108034 8RDB44674G01 SA44674.C offers comparable high-level functionality and performance. The key differentiator lies in its specific integration within the Alstom/Hitachi Energy ecosystem and the characteristics of its protection algorithms. Competing products may have strengths in specific areas like user interface design, third-party system integration tools, or a broader library of pre-configured application templates. However, for projects standardized on Alstom equipment or where deep compatibility with other Alstom substation automation products is required, the fully specified NRD108034 8RDB44674G01 SA44674.C provides a validated and optimized solution.

Selection Suggestions and Precautions

• Decode the Full Specification: Use the manufacturer’s official configuration guide to understand every feature included in the 8RDB44674G01 hardware and SA44674.C software. Do not assume functionality based on the base model alone.

• Match to Application Requirements: Ensure the relay’s application software (SA44674.C) is designed for your specific asset (e.g., feeder, transformer with 2 windings) and includes all required protection functions and control logic.

• Verify Communication Needs: Confirm that the hardware assembly provides the necessary physical communication ports (Ethernet, serial) and that the software package includes licenses for the required protocols (e.g., IEC 61850).

• Plan for Configuration Tools: Commissioning requires dedicated software (e.g., MiCOM S1 Studio). Ensure access to the correct software version and obtain the initial configuration file for the device.

• Address Cyber Security Immediately: Upon installation, change all default passwords, configure user roles, and set up communication security in accordance with the facility’s cybersecurity policy.

• Procure as a Complete Unit: The hardware and software codes are inseparable for a functional device. Always procure the ALSTOM NRD108034 8RDB44674G01 SA44674.C as the complete, factory-assembled unit. Attempting to source