Description
GE IS2020RKPSG3A VME Rack Power Supply Module is a heavy-duty, high-reliability power distribution unit engineered specifically for the General Electric Mark VI and Mark VIe Speedtronic gas and steam turbine control systems. Designed to mount securely on the side of VME control and interface racks, this module converts incoming industrial line power into regulated multi-voltage rails to support critical turbine management electronics.
Product Specifications (Datasheet)
- Brand: GE (General Electric)
- Model: IS2020RKPSG3A (Compatible with variant revisions)
- Series: Mark VI / Mark VIe Speedtronic Turbine Control
- Product Name: VME Rack Power Supply Module (RKPS)
- Place of Origin: United States
- Lifecycle Status: Active / Specialized Industrial Supply
- Dimensions: Approx. 10 in \times 6 in \times 3 in (25.4 cm \times 15.24 cm \times 7.62 cm)
- Weight: Approx. 2.5 lbs (1.13 kg)
- Country of Origin: USA
- Output Power Rating: 400W
- Input Voltage Rating: 125 VDC (sourced via Power Distribution Module / PDM) or low-voltage 24 VDC options
Operating Guidelines and Usage Methods
Proper integration and handling of the VME power supply module require strict adherence to high-voltage safety and standard industrial installation practices.
- ESD Precautions: Always wear a certified grounded electrostatic discharge (ESD) wrist strap when handling the unit or interfacing internal wiring harnesses to protect sensitive components.
- Rack Mounting: Mount the power supply securely to the right-hand sheet metal bracket of the VME control and interface rack using approved fasteners, ensuring proper alignment with backplane mating connectors.
- Environmental Control: Operate the host control cabinet within a clean, climate-controlled environment shielded from excessive humidity, airborne dust, and severe temperature fluctuations.
Power-On and Power-Off Sequence
Adhering to correct energization protocols prevents electrical transients and protects internal VME backplane components.
- Power-On Sequence:
- Confirm that all incoming power cables, wiring harnesses (PSA/PSB connectors), and ground straps are firmly connected to the power supply.
- Switch on the primary cabinet power distribution feeds supplying the system PDM.
- Pull out and engage the locking front-panel power switch to energize the output rails.
- Observe the status LEDs (Green for normal, Yellow for input power, Red for fault) to verify stable initialization.
- Power-Off Sequence:
- Safely take the turbine control rack offline via the operator workstation software if required.
- Toggle the front-panel power switch to the OFF position and cut off incoming primary line voltage.
- Allow adequate time for internal filter capacitors to completely discharge before servicing or unseating the module.
Product Instructions
The power supply delivers regulated +5V, \pm12V, \pm15V, and +28V DC power to the VME backplane, alongside specialized outputs like 335V DC for flame detectors where applicable. The front-panel locking switch also acts as a manual fault reset; toggling it off and back on can clear latched faults if the underlying error condition has been resolved. Inspect terminal connections and cooling clearances during scheduled maintenance outages.
Frequently Asked Questions (Q&A)
- Q: What system utilizes the IS2020RKPSG3A module?
- A: It is deployed as a core VME rack power supply within the GE Mark VI and Mark VIe turbine control architecture.
- Q: What is the purpose of the front-panel toggle switch?
- A: It functions as a low-voltage control switch to enable or double as a manual fault reset to clear non-persistent trips.
- Q: What do the status LED indicators signify?
- A: Green indicates normal operation with no faults, yellow indicates input power presence, and red signifies an active fault or under-voltage condition.
Recommended Alternative Series and Models
- GE Mark VIe IS220PTCCH1A
- GE Mark VIe IS420UCSBH4A
- GE Mark VI IS200VAICH1A
- GE Mark VI IS200TVIBH2B
- GE Mark V DS200TCQAG1AFC
- GE EX2100 IS200EPSMG1A
- GE Fanuc IC695CPU310
- GE Multilin 469
- GE Multilin 850
- GE D400 Substation Gateway Modules
