ALSTOM NRD108033 8RDC44667G01 SA44667.C

Description

Product Description

The ALSTOM NRD108033 8RDC44667G01 SA44667.C is a comprehensive ordering and configuration code for a high-performance numerical protection relay from Alstom’s extensive grid automation portfolio. This identifier specifies a fully-configured device where NRD108033 denotes the core relay model, 8RDC44667G01 defines the precise hardware assembly and options, and SA44667.C indicates the specific software application package and version. The ALSTOM NRD108033 8RDC44667G01 SA44667.C assembly is engineered to deliver advanced protection, control, and monitoring for critical electrical assets such as transformers, motors, or generators in demanding utility and industrial networks. Selecting the complete NRD108033 8RDC44667G01 SA44667.C configuration ensures that the unit is delivered with all necessary hardware features and software functions pre-validated for a specific application.

Product Parameters

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

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

• Base Model/Series: NRD108033

• Hardware Configuration Code: 8RDC44667G01 – Specifies the physical assembly, including I/O card types and quantities, communication modules, power supply, and chassis.

• Software/Function Code: SA44667.C – Denotes the loaded application software, including the specific protection algorithms (e.g., differential, overcurrent, thermal), control logic, and communication protocol stacks.

• Key Protection Functions: Likely includes differential protection (87T, 87M), restricted earth fault, overcurrent, thermal overload, and mechanical protection (for motors).

• Measurement & Monitoring: Provides comprehensive metering for currents, voltages, power, energy, and harmonics. Includes advanced monitoring like breaker wear, gas-in-oil analysis (for transformers), or rotor temperature (for motors).

• Communication: Supports multiple protocols simultaneously, typically including IEC 61850, Modbus, DNP3, and IEC 60870-5-103.

• Inputs/Outputs: Configured with a specific number of analog inputs (for CTs/VTs), binary inputs, and relay outputs as defined by the hardware code 8RDC44667G01.

Advantages and Features

• Application-Optimized Package: The combination NRD108033 8RDC44667G01 SA44667.C represents a fully integrated solution tailored for a specific asset type, reducing engineering time and configuration risk.

• High-Speed, High-Accuracy Protection: Utilizes advanced algorithms for ultra-sensitive and stable differential protection, ensuring fast fault clearance while remaining secure during external faults and intrush conditions.

• Comprehensive Condition Monitoring: Goes beyond basic protection to provide valuable data on the health of the protected asset, supporting predictive maintenance strategies.

• Flexible Programmable Logic: Incorporates a powerful configurable logic tool, allowing for the creation of custom control sequences, interlocking, and alarm schemes without additional hardware.

• Robust Cyber Security Features: Designed with modern security requirements, including password protection, role-based access control, and secure communication.

• Intuitive Local Interface: Features a high-resolution display and user-friendly menu structure for local commissioning, control, and data review.

Application Cases in Key Fields

• Power Transformer Protection: Serves as the primary and backup protection for large power transformers in transmission and distribution substations, utilizing its differential (87T) and restricted earth fault functions.

• Large Motor Protection: Provides complete protection for high-voltage motors in industries like oil & gas, mining, and water treatment, including differential (87M), thermal overload, stall, and unbalance protection.

• Generator Protection: Can be applied to smaller generators or as dedicated backup protection for functions like 100% stator earth fault.

• Industrial Plant Main Incomer Protection: Used to protect the main transformers feeding large industrial facilities, combining differential protection with comprehensive feeder protection functions.

Comparison with Competing Products

When compared to similar transformer/motor protection relays from Siemens (SIPROTEC 7UT, 7UM), GE (Multilin 869, 750/760), or SEL (SEL-787), the ALSTOM NRD108033 8RDC44667G01 SA44667.C offers comparable core protection performance. Its differentiation lies in its specific integration within the Alstom/Hitachi Energy ecosystem and the particular characteristics of its protection algorithms (stability during CT saturation, intrush restraint). Competing products may have different strengths in user interface design, third-party system integration ease, or specific monitoring features. The ALSTOM NRD108033 assembly is a strong choice for projects standardized on Alstom equipment or where its specific application software package (SA44667.C) is optimally suited to the protected asset.

Selection Suggestions and Precautions

• Decode the Full Specification: Use the manufacturer’s official configuration manual to understand every feature included in the 8RDC44667G01 hardware and SA44667.C software codes. Do not assume functionality.

• Match to the Protected Asset: Ensure the relay’s application software (SA44667.C) is explicitly designed for your asset (e.g., 2-winding transformer, 3-winding transformer, motor) and that its CT requirements match your installation.

• Verify Communication Requirements: Confirm that the hardware assembly provides the necessary physical communication ports (Ethernet, serial) and that the software includes the required protocol licenses.

• Plan for Configuration and Testing: Commissioning such a relay requires specialized software (MiCOM S1 Studio) and a thorough testing procedure, including injection testing for differential schemes.

• Consider CT Requirements: Differential protection schemes require careful CT selection and matching. Review the relay’s CT requirements for ratio, knee-point voltage, and class to ensure compatibility with your existing instrument transformers.

• Source as a Complete Unit: The hardware and software codes are inseparable for a functioning device. Always procure the ALSTOM NRD108033 8RDC44667G01 SA44667.C as the complete, factory-assembled and tested unit.

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