GE DS2020DACAG2 Overview

GE DS2020DACAG2 is an industrial control module used in GE Speedtronic Mark V / Mark VIe / EX2100 turbine control and excitation systems. It is most commonly identified as an AC-to-DC power conversion (DACA) module / transformer assembly, providing stable DC power for turbine control cabinets and automation systems.

Basic Product Information

• Manufacturer: General Electric
• Part number: DS2020DACAG2
• Series: Speedtronic Mark V / EX2100 / Mark VIe
• Module type: AC-to-DC Power Conversion Assembly (DACA)
• Origin: USA

Main Function

AC → DC Power Conversion

The primary role of the DS2020DACAG2 is to convert 115–230 VAC into regulated 125 VDC to power turbine control modules and drive electronics.

Key purposes:

• Supplies stable DC bus power for control systems
• Feeds gate pulse amplifier boards and other controller modules
• Ensures consistent voltage for reliable turbine operation

Key Features

1) Reliable Power Supply for Turbine Control

• Provides regulated 125 VDC output
• Supports parallel operation for higher current capacity
• Efficiency up to 98%

2) Ride-Through Capability During Power Loss

When main power fails, the module helps the system ride through short outages by supporting local energy storage.

3) Industrial-Grade Design

• Works in harsh environments
• Designed for long-term continuous operation
• Metal housing for protection against vibration and electrical noise

4) System Integration

Compatible with:

• GE Mark V turbine control
• EX2100 excitation system
• Mark VIe platform

Technical Specifications (Typical)

Applications

Typical industries:

• Gas turbine control systems
• Steam turbine control
• Power plants & energy generation
• Industrial automation
• Excitation control cabinets

In short: this module is critical power infrastructure inside GE turbine control panels.

Summary

The GE DS2020DACAG2 is a high-reliability AC-to-DC power conversion module designed for mission-critical turbine control systems. It provides stable 125 VDC power, supports system ride-through during outages, and ensures long-term industrial reliability.