ALSTOM DX21 is a high-performance digital excitation controller belonging to the MICROTECH series, designed for generator excitation regulation and voltage control in power generation and industrial automation systems. It delivers precise, reliable excitation current adjustment to maintain stable generator terminal voltage under varying loads, widely used in utility and heavy industrial power plants.

Core Specifications

• Brand: ALSTOM
• Model: DX21
• Availability: In stock
• Delivery time: Within 3 days after payment
• Guarantee: 12 months warranty
• Condition: New / Refurbished (original packaging)
• Input/Output: Excitation signal input, PWM control output, LCD display, LED status indicators
• Working temperature: 0°C to +55°C
• Size/Weight: Compact panel-mount, approx. 2.9 kg
• Communication: Modbus-compatible, supports remote monitoring
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Key Features

1. Precision Digital Regulation: Advanced PID control ensures accurate excitation current and voltage regulation for stable generator output.
2. Multi-Mode Operation: Supports automatic, manual, and fault-tolerant control modes to adapt to diverse load and grid conditions.
3. Integrated Monitoring & Diagnostics: Built-in LCD and LEDs provide real-time status; fault logging enables quick troubleshooting.

Industry Applications

• Power Generation: Thermal, hydroelectric, and gas turbine power plants for generator excitation control.
• Petrochemicals: Critical for stable operation of large on-site generators in refineries and chemical complexes.
• Heavy Manufacturing: Steel mills and mining facilities relying on robust generator voltage regulation.
• Industrial Automation: Backup and grid-parallel power systems for continuous-process industries.