Product Introduction

The IS2020RKPSG1AI-REP is a high-performance power supply module specifically engineered for the General Electric (GE) Mark VI Speedtronic control system. Designed to provide reliable DC power to the control rack and its associated I/O modules, this unit ensures the stability and longevity of industrial gas and steam turbine control operations. It serves as a critical component in maintaining the internal power bus, offering robust protection against voltage fluctuations and electrical noise.

Technical Description & Parameters

This module functions as a Rack Power Supply (RKPS), converting primary source power into the regulated voltages required by the MK VI backplane.

• Model Number: IS2020RKPSG1AI-REP
• Series: Mark VI Speedtronic Control System
• Input Voltage: Typically supports wide-range DC input (standard 24VDC or 125VDC configurations depending on the specific rack setup).
• Output Voltage: Multiple regulated DC outputs for processor and I/O board power.
• Form Factor: Plug-in module designed for standard GE Mark VI rack mounting.
• Diagnostics: Integrated status LEDs for power “OK” and fault indication.
• Cooling: Convection cooled with integrated heat sinks for high-temperature stability.

Product Datasheet Essentials

The IS2020RKPSG1AI-REP is built with industrial-grade capacitors and transformers to withstand the harsh environments of power plants. It features built-in over-voltage and over-current protection. The “REP” designation often indicates a replacement or refurbished unit tested to meet or exceed original OEM specifications, ensuring seamless integration with existing Mark VI hardware.

Country of Origin

USA (General Electric Company)

Application Fields

The primary application for this power supply is within the energy sector. It is extensively used in:

• Gas Turbine Control Systems (Frame 5, 6, 7, and 9).
• Steam Turbine Control Systems.
• Combined Cycle Power Plants.
• Industrial Co-generation Facilities.

Product Usage Instructions

1. Safety First: Ensure all primary power sources are locked out before installation or removal.
2. Mounting: Slide the module into the designated slot of the Mark VI rack, ensuring the rear connectors align perfectly with the backplane.
3. Securing: Tighten the front panel thumb screws to ensure a proper ground connection and mechanical stability.
4. Verification: Upon powering up, monitor the front-facing LED indicators. A steady green light typically indicates normal operation, while amber or red suggests an input/output fault.

Common Questions & Answers (Q&A)

Q: Can this module be hot-swapped?

A: While the MK VI system has redundancy features, it is highly recommended to follow specific site safety protocols. Generally, power supplies should be replaced while the specific power segment is de-energized to prevent arcing.

Q: What is the difference between the G1 and G1AI versions?

A: The “AI” suffix often denotes a specific revision level or internal component update aimed at improving thermal efficiency or meeting newer environmental compliance standards.

Q: Why is my status LED blinking?

A: A blinking LED usually indicates an “out of range” input voltage or an internal fuse failure. Check the input terminals with a multimeter to verify the source power.

Explore More Control System Components

For more genuine GE Mark VI parts and industrial automation solutions, visit our Industrial Control Shop.

Recommended Similar Models

1. IS2020RKPSG1AJ – A closely related revision of the Mark VI rack power supply.
2. IS215UCVEM08A – The VME Controller Board often powered by the RKPS module.
3. IS2020RKPSG3A – A variation of the power supply used in specific cabinet configurations.
4. IS200EPSMG1A – Exciter Power Supply Module used within the same control ecosystem.
5. IS200TVBAH1A – Vibration Terminal Board frequently used alongside the MK VI power distribution.