Overview

The ABB PD D405 A101 is part of ABB’s D400 series, engineered for demanding excitation control in large-scale synchronous generators. This unit ensures stable voltage output with ±0.25% regulation accuracy, supporting generators up to 800 MVA. Moreover, its rugged construction and advanced control algorithms make it suitable for continuous operation in harsh industrial environments.

In addition to voltage regulation, the PD D405 A101 offers real-time monitoring, fault diagnostics, and flexible I/O configuration. Therefore, it’s widely deployed in power plants, substations, and heavy industrial facilities where generator reliability is critical. The unit is manufactured in Switzerland and complies with international standards for safety and performance.

For instance, operators in thermal and hydroelectric plants benefit from its fast response and modular integration with ABB’s automation systems. In addition, its compact design simplifies panel installation and maintenance.

Technical Data

Typical Applications

• Power Generation Plants: Provides excitation control for large synchronous generators in thermal, hydro, and nuclear facilities.

• Industrial Utilities: Ensures stable voltage output for internal power distribution systems.

• Substation Automation: Integrates with protection and control systems for grid-connected generators.

• OEM Generator Systems: Embedded in custom generator packages for high-precision voltage regulation.

• Renewable Energy Facilities: Supports hybrid systems requiring synchronous generator stabilization.

For instance, facilities with fluctuating grid conditions rely on its fast regulation to maintain voltage stability. In addition, its modular design allows easy integration with ABB’s control platforms such as AC 800M.

FAQ

Q: What type of generators is the PD D405 A101 compatible with?

A: It is designed for synchronous generators up to 800 MVA.

Q: What is the voltage regulation accuracy?

A: The unit offers ±0.25% accuracy for precise excitation control.

Q: Can it be used in renewable energy systems?

A: Yes, it supports hybrid and grid-tied systems requiring synchronous generator stabilization.

Q: What is the typical lead time for delivery?

A: Most distributors offer 1–3 working days, depending on stock availability.