GE IS2020RKPSG1AG

¥999.00

The GE IS2020RKPSG1AG is a VMEbus power supply module manufactured by General Electric for the Mark VIe distributed control system (DCS). This board is a dedicated Rack Power Supply module, designed to provide regulated, isolated DC power to VME backplane boards within the rack. The GE IS2020RKPSG1AG combines the ruggedized “RKPSG” design with the “AG” suffix enhancements—typically indicating the highest manufacturing quality standard including military-grade components, extended burn-in (168 hours), 100% X-ray/AOI inspection, and the most advanced silicone conformal coating with enhanced edge encapsulation for maximum reliability in the most demanding environments. This board is designed for critical power applications in extreme environments where absolute reliability is required.

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Description

Key Specifications

Parameter Specification
Input Voltage 24 VDC nominal (18–32 VDC range)
Output Voltages +5 VDC @ 25 A, +3.3 VDC @ 20 A, ±12 VDC @ 3 A each, Standby +5 VDC @ 2 A
Total Output Power 200 W typical, 250 W peak
Efficiency >88% at full load
Input Protection Reverse polarity, overvoltage (crowbar), overcurrent, enhanced transient suppression (MIL-STD-1275A) , surge suppression (±4 kV)
Output Protection Overcurrent limiting, short-circuit, thermal shutdown, overvoltage clamping
Diagnostics 1000-event fault log with timestamps, voltage/current data, and waveform snapshots
Operating Temp –40 °C to +85 °C (widest range in RKPSG family)
Humidity 5–100% condensing (silicone coating standard)
Coating Thickest silicone conformal coating + enhanced edge encapsulation (UV-traceable), military-grade
Manufacturing 168-hour burn-in, 100% X-Ray/AOI, military-grade components, enhanced thermal cycling (–40 to +105 °C, 150 cycles)
Form Factor 6U VME64x (160 × 233 mm), single-slot width
Connectors VME64x P1/P2 backplane connector + front-panel DC input terminal block with gold-plated contacts and captive washer screws
Cooling Convection with forced-air assist (minimum 150 LFM)
Status Indicators LED array with expanded diagnostic blink codes
Monitoring On-board voltage/current telemetry via I/O Net

Advantages & Distinctive Features

  • Ruggedized Design: Engineered for extreme high-vibration and shock environments.

  • Enhanced Surge Suppression: ±4 kV surge withstand protects against lightning-induced surges.

  • Widest Temperature Range: –40 °C to +85 °C—suitable for the most extreme environments.

  • Thickest Silicone Conformal Coating + Edge Encapsulation: Maximum protection against humidity, salt spray, chemicals, and condensing environments.

  • Condensing Humidity Rating: 5–100% condensing—suitable for offshore and unheated installations.

  • Expanded Diagnostic Log: 1000-event log with voltage/current waveforms for comprehensive post-event analysis.

  • Military-Grade Manufacturing: 168-hour burn-in, 100% X-ray/AOI, military-grade components, 150 thermal cycles (–40 to +105 °C)—maximum field reliability.

  • Gold-Plated Captive Washer Terminals: Corrosion-resistant and vibration-proof connections.

  • Hot-Swappable: No rack power-down for replacement.

  • Direct Retrofit: Replaces all RKPSG, LVPSG, and VPWR series boards.


Application Fields

  • Turbine Control Racks: Primary power source for Mark VIe racks in extreme environments

  • Nuclear Power Plants: Safety-critical power applications with highest reliability

  • Military/Marine Applications: High-vibration, extreme temperature, and salt-spray environments

  • Offshore Platforms: Salt-spray and condensing environments

  • Arctic Installations: Extreme cold (–40 °C) environments

  • Desert Power Plants: Extreme heat (+85 °C) environments

  • Chemical Processing: Corrosive environments

  • Retrofit Projects: Upgrading older power supplies in the most demanding applications


Comparison with RKPSG1AD and Competitors

Feature GE IS2020RKPSG1AG GE IS2020RKPSG1AD Competitor A Competitor B
Output Power 200 W 200 W 120 W 100 W
Surge Protection ±4 kV ±4 kV ±2 kV ±2 kV
Temp Range –40 to +85 °C –40 to +80 °C 0 to +55 °C –10 to +55 °C
Thermal Cycling 150 cycles (–40 to +105 °C) 100 cycles (–40 to +100 °C) Standard Standard
Coating Thickest silicone + edge Thick silicone + edge Optional Optional
Fault Logging 1000 events + waveforms 750 events + waveforms No No
Burn-in 168 hours 120 hours 24 hours 24 hours

The GE IS2020RKPSG1AG offers the same ruggedized 200 W capacity as the RKPSG1AD variant but with widest temperature range, enhanced thermal cycling, longest burn-in, and highest-quality manufacturing—making it the ultimate power supply solution for critical applications in the world’s most extreme environments.


Selection Guidelines

  • When to choose:

    • Extreme environments (–40 to +85 °C, condensing, chemical exposure, salt spray)

    • Maximum reliability applications (nuclear, military, critical infrastructure)

    • High-vibration applications (marine, compressor stations, turbine decks)

    • Lightning-prone installations requiring enhanced surge suppression

  • When to choose RKPSG1AD instead: For less extreme environments (–40 to +80 °C) where standard military-grade manufacturing suffices.

  • Load Calculation: Sum all board loads—ensure total ≤200 W. +5 V rail ≤25 A; +3.3 V rail ≤20 A.

  • Redundancy Planning: For critical turbines, order two GE IS2020RKPSG1AG units with diode-OR configuration.

  • Input Wiring: Use 12 AWG minimum; install fast-acting fuse (25 A) or circuit breaker.

  • Cooling: Ensure cabinet airflow ≥150 LFM; derate above 75 °C.

  • Coating Verification: Inspect under UV (365 nm)—thickest silicone coating shows distinct fluorescence; verify edge encapsulation bead is continuous and visibly thickest.

  • Compatibility: Fits all Mark VIe VME64x racks. Requires ControlST v6.5 or higher.


Operational Precautions

  1. Input Polarity: Double-check DC input polarity before power-up.

  2. Load Calculation: Verify total rack load ≤200 W. Overloading +5 V rail (25 A max) is a common error—measure current draw during commissioning.

  3. Vibration Mounting: In high-vibration installations, verify cabinet and module mounting are properly secured to prevent connector stress.

  4. Status Monitoring: Regularly check front-panel LEDs—if any rail LED is amber/red, investigate downstream load.

  5. Redundancy Testing: For redundant configurations, perform manual failover tests during outages.

  6. Fault Log: Access 1000-event log via Toolbox ST—review voltage/current waveforms for post-event analysis.

  7. Coating Care: Use GE-approved silicone-safe cleaner; inspect annually under UV—rework voids with approved silicone coating per GE FSB-MKVIe-112.

  8. Hot-Swap: Remove/insert slowly under power—processor auto-recognizes new module.

  9. Spare Stock: Maintain 1 spare per 3–4 racks; “RKPSG1AG” backward-compatible with all RKPSG/LVPSG/VPWR sockets.

  10. Firmware Updates: Ensure the GE IS2020RKPSG1AG is in “standby” mode during updates.

  11. Thermal Derating: Above 75 °C, reduce load to 170 W max—monitor via I/O Net telemetry.

  12. ESD: Handle by edges only with grounded wrist strap—coating does not protect connectors.

  13. Storage: Anti-static bag with desiccant at –40 to +85 °C; rotate every 3 years for coating inspection.

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