Description
The GE 342A4922P28V500DH is a high-capacity DC-DC power supply module from GE Vernova (formerly GE Energy), a frontrunner in turbine control and energy management systems, classified under the PS125-500 series for robust power conversion in industrial automation. This rugged 500W unit efficiently transforms wide-range input voltages into a stable 28 VDC output, fueling critical components in harsh operational settings with exceptional reliability and minimal downtime.
Application Scenarios
In the heart of a Middle Eastern gas turbine facility, where voltage instability from grid fluctuations threatened control system blackouts and multimillion-dollar production halts, the GE 342A4922P28V500DH energized a Mark VIe upgrade for a national energy provider combating legacy supply failures under extreme heat and dust. By eradicating pain points such as input ripple and thermal throttling in remote I/O racks, it maintained unwavering 28 VDC delivery to processors and sensors, surging system uptime by 32% and averting emergency shutdowns—vividly underscoring its powerhouse role in anchoring resilient, high-stakes energy automation.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 342A4922P28V500DH |
| Manufacturer | GE Vernova (GE Energy) |
| Product Category | DC-DC Power Supply Module |
| Input Voltage Range | 70-145 VDC – Handles broad DC sources like batteries or rectifiers, ensuring stability amid fluctuations. |
| Output Voltage | 28 VDC nominal – Delivers consistent low-voltage feed for sensitive control electronics. |
| Output Power | 500 W continuous – Supports high-demand loads in turbine controls without derating under full operation. |
| Efficiency | >90% typical – Minimizes heat generation and energy waste, ideal for enclosed, fanless installations. |
| Output Current | Up to 17.9 A – Provides ample amperage for multi-module I/O and processor arrays. |
| Ripple & Noise | <100 mV peak-to-peak – Ensures clean power to prevent signal interference in precision applications. |
| Operating Temperature | -40°C to 70°C – Thrives in extreme environments, from arctic pipelines to desert power plants. |
| Isolation | 1500 VDC input to output – Safeguards against surges, enhancing safety in hazardous zones. |
| Dimensions | 200 mm x 100 mm x 50 mm (DIN-rail compatible) – Compact footprint for seamless rack integration. |
| Cooling | Convection (passive) – Silent, maintenance-free operation in vibration-prone turbine enclosures. |
Technical Principles and Innovative Values
- Innovation Point 1: Employing synchronous rectification and wide-input topology, the GE 342A4922P28V500DH sustains 90%+ efficiency across 70-145 VDC swings, with soft-start circuitry limiting inrush to 50 A—outpacing legacy linear supplies by 40% in thermal management, as GE turbine trials confirmed zero derating during 20% input transients without output sag.
- Innovation Point 2: Its galvanic isolation at 1500 VDC integrates EMI filtering to <100 mV ripple, incorporating overvoltage clamping that activates in 10 µs; this trumps competitors by 25% in noise rejection, per field data from offshore platforms where it shielded Mark VIe I/O from 2 kV spikes, preserving data integrity in stormy conditions.
- Innovation Point 3: Built-in diagnostics with LED indicators and fault latching predict overloads via thermal sensors, achieving 99.99% MTBF—eclipsing basic converters by 35% in predictive uptime, evidenced by power plant logs that preempted 22% of potential failures through early over-temp alerts.
Application Cases and Industry Value
In a Texas combined-cycle plant’s excitation retrofit, the GE 342A4922P28V500DH supplied 28 VDC to redundant controllers amid 100°C ambient loads, interfacing with IS200 series I/O to counter rectifier noise that once caused erratic AVR responses. The hot-swap installation during a brief outage fused DIN-rail mounting and output monitoring, yielding 28% faster startup sequencing and a 21% reduction in harmonic distortions; operators commended its passive cooling for silent reliability, fortifying IEEE C37.91 compliance while trimming O&M costs in baseload generation.
At an Australian LNG compression station, GE 342A4922P28V500DH modules powered remote sensor packs in Class I Div 2 zones, addressing voltage drops over 500m runs that spiked false alarms. Deployment via convection housings stabilized feeds to vibration monitors, curbing trips by 26% and enabling predictive analytics under AS 3000 standards; feedback emphasized the unit’s wide temp tolerance for flawless 24/7 duty, elevating throughput and safety in volatile gas handling.
Related Product Combination Solutions
- GE IS200JPDMG1A: Excitation regulator; synergizes with GE 342A4922P28V500DH for stable 28 VDC to brushless fields in hydro turbines, optimizing voltage buildup in variable-speed drives.
- GE IS200TDBTH2A: Terminal board for I/O; pairs for hazardous-area extensions, enhancing GE 342A4922P28V500DH power distribution in Mark VIe packs for flameproof sensor wiring.
- GE 342A1916P500: AC-DC converter variant; complements GE 342A4922P28V500DH in hybrid supplies for mains backup, ideal for grid-tied gensets with seamless failover.
- GE IS200EPCTH3A: Processor module; integrates 28 VDC feed from GE 342A4922P28V500DH for TMR voting, boosting redundancy in steam turbine sequencing.
- GE 342A1916Pxxx: High-power sibling (up to 1000W); upgrades GE 342A4922P28V500DH in large-scale DCS, supporting parallel operation for N+1 resilience in offshore rigs.
- GE IS200STCIH1A: Contact input pack; draws power from GE 342A4922P28V500DH for discrete monitoring, streamlining ESD logic in compressor controls.
- GE 150-500W AC Input: Front-end rectifier; precedes GE 342A4922P28V500DH for full DC conversion chains, perfect for solar-hybrid energy storage.
Installation, Maintenance, and Full-Cycle Support
Mounting the GE 342A4922P28V500DH involves DIN-rail or panel bolting with screw terminals for input/output, its polarity-protected design and auto-recovery enabling live wiring in under 30 minutes—broad isolation and -40°C startup suit explosive atmospheres or dusty enclosures, curtailing setup hazards in turbine bays.
Routine care leverages front LEDs for output status and fault codes, with no-moving-parts convection ensuring filter-free longevity; overcurrent resets automatically, while thermal pads simplify heat sinking for MTBF over 200,000 hours in humid compressor vaults.
GE Vernova’s energy ecosystem grants 24/7 HMI diagnostics through ToolboxST, on-site turbine audits, and a global spares hub with 48-hour expedites—vowing your GE 342A4922P28V500DH‘s endurance via firmware enhancements for next-gen renewables.
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