IS200EPSDG1AAB - Power Supply Daughterboard

SPECIFICATIONS

Part No.: IS200EPSDG1AAB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Technology: Surface-mount
Operating temperature: -30 to 65oC
Product Type: Exciter Regulator Power Supply Daughterboard
Availability: In Stock
Series: EX2100

Functional Description

IS200EPSDG1AAB is an Exciter Regulator Power Supply Daughterboard developed by GE. It is a part of EX2100 excitation system. This daughterboard is specifically designed to mount onto the Exciter Power Supply Module (EPSM). It plays a role in enhancing the high-voltage capability and protection features of the excitation regulator system.

Function and Purpose

• It is not a standalone component; it functions as an integral part of the EPSMG2 power supply assembly. Its core responsibilities include:
• Modifying the input power path to accommodate higher input voltage levels.
• Improving electrical isolation by increasing creepage and clearance distances.
• Protecting downstream components through an integrated fuse between the DC link and buck-regulator.
• These enhancements make the EPSMG2 (when combined with EPSD) suitable for regulator-based control applications where higher voltages are present.

Design Characteristics

• Mounted on EPSMG2: The EPSD is physically attached to the EPSMG2 main board via two board-to-board connectors. This configuration is only present in EPSMG2 assemblies used in EX2100 Regulator Control Systems.
• Power Path Modification: The daughterboard alters the standard input path on the EPSMG2 to allow for safe operation at elevated DC input levels, improving insulation and minimizing risk of electrical tracking.
• Integrated Fuse Protection: A fuse placed between the DC power source (dc link) and the buck-regulator protects against overcurrent or fault conditions, acting as a critical safety feature for regulator operation.
• Passive Design: It has no adjustable jumpers or configuration switches. It is a passive component designed for fixed integration, ensuring consistency across all EPSMG2 regulator units.

Electrical Isolation and Safety

The addition of the EPSD to the EPSMG2 enhances the insulation coordination of the power supply circuit by increasing creepage (surface distance) and clearance (air distance) between high-voltage and low-voltage conductors. This is essential for compliance with high-voltage operational standards and reducing the risk of dielectric breakdown.

Operational Use

• The EPSM with the EPSDG1AAB is typically deployed in EX2100 Regulator Control Systems, where:
• Input voltages may exceed the limits safely handled by EPSMG1 alone.
• Additional protection is required between the regulator’s DC input and internal converter stages.
• Reliable operation under varying field conditions demands increased safety margins.

The WOC team is always available to help you with your EX2100 requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200EPSDG1AAB?
It is an Exciter Regulator Power Supply Daughterboard developed by GE under the EX2100 series.

What specific enhancements does the EPSD board provide?
It increases creepage and clearance distances for insulation, allowing safe operation at higher DC voltages, and integrates a series fuse to protect the buck-regulator stage from fault conditions.

Does the EPSDG1AAB contain any configurable jumpers or settings?
No. The board is passive and has no adjustable jumpers or configuration options. It is designed for fixed integration with EPSMG2.