Product Overview

• Part No: V4555724-0100
• Brand: ALSTOM

• Category: Turbine Control UnitV4555724-0100 is a SIRE series dedicated control unit developed by ALSTOM for steam turbine governing systems. The module collects field sensor analog and digital signals, executes turbine speed control, valve position regulation and sequence logic algorithms. It outputs drive commands to hydraulic actuator modules, realizes closed-loop control of turbine main valves and auxiliary valves, and communicates with upper DCS monitoring system to upload operating parameters, alarm and fault information. Equipped with multi-channel terminal interfaces and built-in signal conditioning circuit, it is a core spare component for overhaul, maintenance and renovation of thermal power plant turbine control systems.

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Core Features

• Integrated high-speed signal acquisition and closed-loop governing control logic for steam turbine
• Support analog signal 4-20mA, voltage signal and digital switching signal input and output
• Built-in comprehensive hardware self-diagnosis, real-time monitoring internal operating status and fault alarm
• Multi-terminal plug interface design, convenient wiring and quick replacement during on-site maintenance
• Optimized EMC circuit layout, strong anti-interference capability adapting power plant cabinet electromagnetic environment
• Robust metal housing structure, good heat dissipation and vibration resistance for long-term continuous operation

• Compatible with ALSTOM legacy turbine control platform, supports system parameter calibration and debugging

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Technical Specifications

• Supply Voltage: 220V AC
• Operating Temperature: -20°C ~ +70°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Fixed mounting inside turbine control cabinet

• Protection Class: IP20

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Compatibility & Application

• Matched with ALSTOM steam turbine governing control system, compatible with related signal board and servo drive modules
• Widely applied in thermal power plant steam turbine control cabinet maintenance and transformation projects
• Used for turbine rotating speed monitoring, control valve position adjustment, protection interlock and auxiliary equipment sequence control