The BENTLY 3500/15-05-05-CN 106M1079-01 is a critical, high-reliability power supply module, serving as the designated power source for the Bently Nevada 3500 Machinery Health Monitoring System. Specifically, the 3500/15 model is the modular, redundant power supply that provides clean, regulated, and isolated power to all monitoring, relay, and communication modules within a 3500 rack framework. The suffix code -05-05-CNindicates specific configuration details, typically related to input voltage ranges and output power ratings, which in this case suggests a dual-input configuration tailored for specific global voltage standards. The 106M1079-01is a unique hardware revision or manufacturing part number. As the «heart» of the 3500 rack, this module converts incoming AC or DC plant power into the precise DC voltages required by the sensitive analog and digital electronics of the monitoring system, ensuring the entire protection system operates with maximum stability and integrity.
The primary function of the BENTLY 3500/15-05-05-CN extends beyond simple power conversion; it is engineered for continuous, fault-tolerant operation in mission-critical environments. It is designed to be installed in pairs to provide automatic, bumpless redundant operation. If the primary power supply fails, the secondary unit instantly and seamlessly takes over the full load without causing any disruption to the monitoring and protection functions—a feature paramount for systems guarding high-value assets like turbines, compressors, and generators. Its value lies in its unwavering reliability, built-in diagnostics, and hot-swappable design, which together maximize system uptime, ensure the continuous availability of machinery protection data, and facilitate easy maintenance without requiring a system shutdown.
Technical Specifications
Parameter Name
Parameter Value
Product Model
BENTLY 3500/15-05-05-CN 106M1079-01
Manufacturer
Bently Nevada (a Baker Hughes business)
Product Type
Redundant, Modular Power Supply Module for 3500 System
Series/Platform
3500 Machinery Health Monitoring System
Input Voltage
Dual Input Channels (typically 85-265 V AC, 47-63 Hz, and/or 110-250 V DC) — specific to -05-05suffix
Output Voltages
+5 V DC (Logic), ±15 V DC (Analog), +24 V DC (for external transducers/relays)
Output Power Rating
Typically 55 Watts or 110 Watts per module (suffix dependent)
Redundancy
N+1 Redundant configuration supported (two modules share load; one carries full load if the other fails)
Efficiency
High efficiency design to minimize heat generation
LED indicators for Power OK, Fault, and Load Share status
Hot Swap Capable
Yes, modules can be inserted or removed from a powered-on rack without interruption
Isolation
1500 V RMS isolation (input to output, channel to channel)
Operating Temperature
0°C to +65°C (32°F to 149°F)
Agency Approvals
cULus Listed, ATEX, IECEx, CE Marked (for hazardous area use when in approved enclosure)
Key Features and Advantages
The BENTLY 3500/15-05-05-CN is engineered for unparalleled reliability and system availability. Its foremost advantage is true N+1 redundant, hot-swappable operation. Two modules plug into a rack, automatically sharing the load. If one fails or is deliberately removed for maintenance, the other instantly assumes 100% of the load with zero interruption to the monitoring system. This design is critical for continuous protection applications where even a momentary loss of power could mean a loss of protection data or a false trip.
106M1079-01
Robust power conditioning and diagnostic intelligence are integral to its design. The module provides exceptionally clean and stable power, free from noise and transients that could interfere with sensitive vibration and position measurements. It features comprehensive self-diagnostics that monitor its health and status. LED indicators and communication via the rack’s backplane provide clear local and remote alerts for conditions such as loss of input power, overload, overtemperature, or module failure. This enables predictive maintenance—replacing a module at the first sign of degradation during a planned outage rather than reacting to a failure.
Global flexibility and safety certifications make it suitable for worldwide deployment. The wide-range, dual-input voltage capability (as indicated by the suffix) allows it to be installed in virtually any plant’s electrical environment without needing a custom version. Its certifications for use in Class I, Division 2 / Zone 2 hazardous areas (when installed in a suitably certified enclosure) make it safe for installation in oil & gas, chemical, and other potentially explosive atmospheres. The BENTLY 3500/15-05-05-CN is not merely a commodity power supply; it is a system-critical component whose design is harmonized with the entire 3500 system to ensure the highest possible mean time between failures (MTBF) and the lowest mean time to repair (MTTR).
Application Areas
The BENTLY 3500/15-05-05-CN is an indispensable component in any industry that relies on the Bently Nevada 3500 system for protecting critical rotating machinery. Its application is defined by the criticality of the machinery it helps to protect.
In power generation, it is found in every 3500 rack monitoring gas turbines, steam turbines, hydro turbines, generators, and large boiler feed pumps. The redundant power ensures that machinery protection is never compromised, which is vital for grid stability and preventing catastrophic equipment damage. Within oil & gas production, refining, and pipelines, the power supply modules operate in 3500 systems protecting centrifugal and reciprocating compressors, gas and steam turbines, and pumps on offshore platforms, LNG trains, and refineries. Their rugged design and hazardous area certifications are essential here.
For petrochemical and chemical plants, the modules power monitoring systems on critical reactors, large motors, and compressors where process safety is paramount. In marine propulsion on LNG carriers and naval vessels, the 3500/15 provides reliable power for monitoring propulsion turbines and gears. In essence, wherever there is a 3500 rack safeguarding expensive, hard-to-replace rotating equipment that is vital to continuous production or safety, the BENTLY 3500/15-05-05-CN is at work, providing the foundational electrical integrity for the entire monitoring system.
Related Products
BENTLY 3500/15-01-01-CN: A likely variant with different input voltage ranges (e.g., 20-32 V DC).
BENTLY 3500 Rack Framework (4, 8, 12-Slot): The physical chassis that houses the power supply modules and all other monitoring modules.
BENTLY 3500/92 Communication Gateway: A module powered by the 3500/15, which transmits data to plant networks.
BENTLY 3500/22M / 3500/25 Vibration Monitors: The primary monitoring modules that rely on the clean power from the 3500/15.
BENTLY 3500/32 Relay Module: A module providing relay outputs for alarms and trips, powered by the same supply.
BENTLY 3500/93 Transient Data Interface (TDI): A module for capturing startup/shutdown data, also powered by the 3500/15.
BENTLY System 1™ Software: The asset performance management software that receives data from the 3500 system, whose reliability depends on the continuous operation enabled by this power supply.
External Redundant AC/DC Power Sources: The plant power feeds that are connected to the dual inputs of the 3500/15 modules to provide source-level redundancy.
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