GE IS2020RKPSG2A Turbine Control System Frame Power Supply

Product Description

Model: IS2020RKPSG2A Manufacturer: GE General Electric Product Name: Mark VI VME Rack Power Supply Module (RKPS Rack Power Supply Unit) Product Type: Turbine Control System Rack Power Supply Origin: USA

IS2020RKPSG2A belongs to GE Speedtronic Mark VI turbine control system. It is a multi-output rack power supply dedicated for VME control cabinet, named RKPS (Rack Power Supply). Taking 125VDC as input, it supplies multiple regulated DC outputs, delivering clean and stable power for all VME backplane processor boards, I/O boards, relay boards and flame detector circuits. Optional 335VDC output is available for TRPG flame detector loop. It adopts fanless convection cooling, built-in overvoltage, overcurrent and thermal shutdown protection, reverse polarity protection and inrush current limiting. Front panel LED status indicators are equipped. It supports N+1 redundant parallel configuration. It is the core power component inside gas & steam turbine Mark VI control cabinets, ensuring uninterrupted power supply for unit control and protection circuits.

Note: This module is designed for Mark VI (VME architecture), not directly compatible with Mark VIe system.

Technical Specifications

• Model: IS2020RKPSG2A
• Input Voltage: 125VDC nominal
• Total Output Power: 400W
• Output Rails: +5VDC, ±12VDC, ±15VDC, ±28VDC; optional 335VDC for flame detector circuit
• Cooling: Natural convection, fanless
• Protection: Overvoltage, overcurrent, thermal shutdown, reverse polarity protection, inrush current limit
• Mounting: Installed on right side bracket of VME rack, connected to backplane via PSA / PSB harness
• Operating Temperature: 0℃ ~ +60℃
• Relative Humidity: 5%~95%, non-condensing
• Status Indication: Front panel LED for power healthy / fault alarm
• Redundancy: N+1 or 2N parallel redundancy supported
• Dimension: approx. 333mm × 85mm × 400mm
• Weight: approx.7.24kg

Application

1. Heavy-duty gas turbine: GE Frame5 / Frame6B / Frame7EA / Frame7FA / Frame9E / Frame9FA units with Mark VI control system
2. Steam turbine power plant: Combined-cycle power plant steam turbine control cabinets
3. Compressor control: VME control cabinets for large industrial compressors and power turbines
4. Power generation protection: Provide uninterrupted regulated power for unit protection, trip circuits and flame detection systems
5. Backup power application: Power station DC battery distribution architecture, immune to grid disturbance and short blackout

Related Series Models

IS2020RKPSG1A, IS2020RKPSG2, IS2020RKPSG3A, IS2020RKPSH1A