Description

Application Scenarios

At a major offshore oil&gas platform in the North Sea,the integrity of gas compression systems is critical to operational safety and production continuity.The platform’s Bently Nevada 3500 system was originally equipped with single power supplies,leading to a near-miss incident when a power module failure caused a temporary loss of vibration monitoring.To eliminate single points of failure,engineers upgraded to dual BENTLY 3500/15E power supplies in redundant mode.Since the upgrade,the system has maintained 100%uptime,even during controlled power cycling and brownout events.The 3500/15E’s built-in diagnostics and LED indicators allow technicians to quickly verify power health during routine inspections,significantly improving system reliability and compliance with safety standards(e.g.,API 670).

Parameter

Main Parameters Value/Description

Product Model 3500/15E/176449-01

Manufacturer Bently Nevada(a Baker Hughes company)

Product Category Rack Power Supply Module

Input Voltage Dual 18–30 VDC inputs–Supports redundant power sources

Output Voltage 24 VDC(regulated)–Stable power for sensitive monitoring circuits

Maximum Output Current 20 A–Powers full 3500 rack with multiple modules

Redundancy Hot-swappable,auto-load sharing–Seamless failover between dual units

Efficiency>85%–Minimizes heat generation and energy loss

Operating Temperature-10°C to+70°C–Suitable for extreme environments

Cooling Natural convection–Fanless design for high reliability

Mounting 3500 rack chassis(19-inch rack compatible)–Standard industrial integration

Status Indicators LED for Power OK,Input OK,Fault–Real-time health monitoring

Compliance IEC 61010-1,IEC 61326,ATEX(when installed in approved cabinet),CE,UL,CSA–Meets global industrial safety and EMC standards

MTBF>100,000 hours–High reliability for continuous operation

Technical Principles and Innovative Values

Innovation Point 1:Dual-Redundant Input Design

The BENTLY 3500/15E accepts two independent 18–30VDC inputs,allowing connection to separate power sources(e.g.,battery-backed and main-supplied).If one input fails,the other automatically takes full load without interruption,ensuring continuous operation of the protection system—critical for SIL-rated applications.

Innovation Point 2:High-Current Capacity for Full-Rack Support

With a 20A output,the 3500/15E can power a fully loaded 3500 rack,including up to 16 monitoring channels,communication modules(3500/45,3500/92),and interface cards.This eliminates the need for external power distribution and simplifies system design.

Innovation Point 3:Integrated Diagnostics and LED Feedback

The module features front-panel LEDs that indicate input power status,output health,and fault conditions.This enables quick visual verification during commissioning,maintenance,or troubleshooting,reducing downtime and improving operational confidence.

Innovation Point 4:Hot-Swappable and Field-Repairable

The 3500/15E can be replaced without powering down the rack,enabling maintenance under live conditions.Its modular design allows for rapid replacement in mission-critical environments where system uptime is paramount.

Application Cases and Industry Value

In a combined-cycle power plant in Texas,the BENTLY 3500/15E powers the 3500 system monitoring two steam turbines and a generator.Prior to using redundant 3500/15E modules,the plant experienced nuisance trips during power fluctuations.After upgrading,the system remained online during a major grid disturbance,allowing operators to safely shut down equipment based on real-time vibration data.The plant’s reliability team credited the 3500/15E with preventing a potential catastrophic failure and avoiding over$2M in potential downtime costs.

A petrochemical refinery in South Korea implemented dual 3500/15E power supplies across all critical compressor trains.The fanless,convection-cooled design proved ideal in the high-temperature,dusty environment of the compressor room.Over five years of operation,there were zero power supply failures,and the LED indicators helped maintenance teams perform predictive checks during routine rounds.The refinery achieved ISO 10816 compliance with confidence,knowing their protection system was always powered and ready.

Installation,Maintenance,and Full-Cycle Support

Installing the BENTLY 3500/15E involves sliding the module into the leftmost slot of the 3500 rack(primary power position)and connecting two redundant 24VDC power sources to the terminal block.The module automatically synchronizes and shares load when two units are used.After power-up,verify the”Power OK”and”Input OK”LEDs are green;a red”Fault”LED indicates issues such as overcurrent or overheating.

Routine maintenance includes periodic inspection of input wiring,cleaning of ventilation areas,and checking LED status.The 3500/15E has no user-serviceable parts but is designed for easy replacement in the field.Its long MTBF and robust construction minimize lifecycle costs.

Our technical team provides full support for system integration,redundancy setup,and troubleshooting.With access to genuine Bently Nevada parts,documentation,and engineering expertise,we ensure your 3500 system remains powered,protected,and performing at its best.

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