Description
1. Product Overview
BENTLY 133442-01 is a high-performance power supply module engineered by Bently Nevada (a Baker Hughes company), exclusively designed to provide reliable, redundant power to the Bently 3500 machinery health monitoring system. As the critical energy backbone of the 3500 rack, BENTLY 133442-01 delivers stable DC power to all connected modules (e.g., vibration, displacement, communication modules) while supporting hot-swappable operation for uninterrupted system uptime. In power plant turbine monitoring systems, BENTLY 133442-01 ensures continuous power to the 3500 rack even during main power fluctuations, preventing loss of critical machinery data; in offshore oil platform compressor monitoring setups, BENTLY 133442-01’s redundant design eliminates single points of failure, safeguarding against unplanned downtime in remote, harsh environments. Additionally, BENTLY 133442-01 features built-in fault detection and diagnostic capabilities, enabling maintenance teams to identify power issues before they impact system performance.
2. Product Parameters
2.1 Core Power Specifications
- Input Voltage: 100–240 VAC (50/60 Hz) or 120–300 VDC (dual input options)
- Output Voltage: 24 VDC ±1% (regulated)
- Output Current: 10 A (continuous), 15 A (peak for 10 seconds)
- Redundancy Support: N+1 configuration (up to 4 modules per 3500 rack)
- Efficiency: ≥92% (full load)
2.2 Electrical Protection Features
- Overvoltage Protection: 28 VDC threshold (automatic shutdown)
- Overcurrent Protection: 16 A threshold (current limiting)
- Short Circuit Protection: Crowbar circuit (self-resetting after fault clearance)
- Surge Protection: IEC 61000-4-5 compliant (2 kV surge immunity)
- Isolation: 4000 VAC input-output isolation
2.3 Environmental & Mechanical Parameters
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -55°C to +100°C
- Relative Humidity: 5%–95% (non-condensing, MIL-STD-810G)
- Protection Rating: IP20 (rack-mounted)
- Mounting: Bently 3500 series chassis (2-slot width, 3U height)
- Hot-Swap Capability: Yes (no power interruption to rack during replacement)
- Dimensions: 175 mm × 250 mm × 48 mm (L×W×H)
- Weight: ~2.1 kg
2.4 Certification & Compatibility
- Certifications: ATEX II 2G Ex ib IIC T4, IECEx, UL 60950-1, CE, SIL 2 (IEC 61508)
- Compatible Systems: Bently 3500/05, 3500/15, 3500/20 chassis (all 3500 series racks)
- Compliance Standards: EN 50155 (railway applications), EN 61010 (industrial control equipment)
3. Advantages & Features
- High-Reliability Redundancy: BENTLY 133442-01 supports N+1 redundant configurations, ensuring the 3500 monitoring system remains operational even if one power module fails—critical for safety-critical applications like nuclear power plant machinery monitoring.
- Hot-Swappable Design: Field technicians can replace BENTLY 133442-01 without powering down the 3500 rack, eliminating downtime during maintenance and reducing the risk of data loss.
- Wide Input Voltage Range: Accepts 100–240 VAC or 120–300 VDC input, making BENTLY 133442-01 compatible with global power grids and backup battery systems, ideal for remote or unstable power environments.
- Comprehensive Protection: Built-in overvoltage, overcurrent, short circuit, and surge protection shields BENTLY 133442-01 and connected modules from power anomalies, extending system lifespan and reducing repair costs.
- Advanced Diagnostics: Real-time output voltage/current monitoring and fault logging (via 3500 rack controller) enable predictive maintenance, allowing operators to address potential issues before they cause system failures.
4. Application Fields & Cases
4.1 Application Fields
- Power Generation: Nuclear/thermal/hydro power plant 3500 monitoring system power supply, wind turbine gearbox monitoring rack power
- Oil & Gas: Offshore platform compressor monitoring systems, pipeline pump health monitoring racks, LNG plant machinery control systems
- Petrochemical: Refinery reactor monitoring racks, chemical plant agitator condition monitoring systems
- Transportation: Railway locomotive engine monitoring systems, marine vessel propulsion machinery health racks
4.2 Typical Cases
- Nuclear Power Plant Turbine Monitoring: A nuclear power plant deployed BENTLY 133442-01 in N+1 redundant configuration for its 3500 turbine vibration monitoring system. During a main power surge, one module triggered overvoltage protection and shut down, while the redundant module seamlessly took over—preventing loss of critical turbine health data and avoiding a potential safety incident.
- Offshore Oil Platform Compressor Monitoring: An offshore platform used BENTLY 133442-01 to power 3500 racks monitoring centrifugal compressors. When a module failed due to saltwater corrosion (detected via diagnostic alerts), technicians hot-swapped BENTLY 133442-01 without interrupting compressor monitoring, ensuring continuous gas production and avoiding a $500,000 downtime loss.
- Refinery Reactor Monitoring System: A petrochemical refinery integrated BENTLY 133442-01 into its 3500 reactor agitator monitoring racks. The module’s wide input voltage range allowed it to operate with unstable plant power, and its surge protection survived a lightning-induced power spike—protecting $20,000 worth of monitoring modules and maintaining reactor safety.
5. Competitor Comparison
| Parameter | BENTLY 133442-01 | Competitor X Industrial Power Supply |
|---|---|---|
| Output Current | 10 A (continuous) | 8 A (continuous) |
| Redundancy Support | N+1 (4 modules/rack) | N+1 (2 modules/rack) |
| Hot-Swap Capability | Yes | No |
| Input Voltage Range | 100–240 VAC/120–300 VDC | 110–220 VAC only |
| Efficiency | ≥92% | ≥85% |
| MTBF (Mean Time Between Failures) | ≥500,000 hours | ≥200,000 hours |
6. Selection Suggestions & Precautions
6.1 Selection Suggestions
- System Load Matching: BENTLY 133442-01 (10 A output) is ideal for 3500 racks with ≥8 modules; for smaller racks (≤4 modules), select Bently 133442-02 (5 A output, cost-optimized).
- Redundancy Requirements: Choose N+1 configuration for safety-critical applications (e.g., nuclear power, offshore platforms); single modules suffice for non-critical machinery monitoring (e.g., factory pumps).
- Input Power Type: Select AC/DC dual-input versions for sites with unstable power or backup battery systems; AC-only versions are suitable for reliable grid power environments.
6.2 Precautions
- Installation Guidelines: Install BENTLY 133442-01 in the dedicated power slots of the 3500 rack (front-left positions); ensure proper airflow (≥30 CFM) around the module to prevent overheating.
- Redundancy Setup: Configure redundant modules via the 3500 rack controller to enable automatic failover; test failover functionality quarterly to verify operation.
- Maintenance Checks: Inspect input/output connections every 6 months for tightness and corrosion; replace air filters (if equipped) annually to maintain cooling efficiency.
- Hot-Swap Procedure: Follow Bently’s official hot-swap protocol when replacing BENTLY 133442-01—ensure the redundant module is active before removing the faulty unit to avoid power interruption.

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