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Technical specifications for 133396-01
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Manufacturer:Bently Nevada
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Product Category:Machinery Monitoring Systems
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Spare Part Number:133396-01
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Estimated shipping dimensions:2.5x11.2x24.2cm
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Weight:0.45 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Communication Protocol:Supports MODBUS RTU, CANopen, Ethernet/IP
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Operating Temperature:-30 °C to +65 °C
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Operating Frequency:50 Hz
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Input Signal Range:4-20 mA
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Power Supply Voltage:24 VDC
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Power Consumption:12V DC, 100mA max
Information
Overview
Manuals
Common Applications
Product Precautions
The 133396-01 is a specialized Overspeed Detection Input/Output (I/O) Module engineered to function within the 3500/53 Overspeed Detection System framework, a vital component of the 3500 series Machinery Protection System. Positioned at the rear position of the standard 3500 machinery monitoring rack, this hardware serves as the primary physical termination and wiring interface for speed sensors located on high-speed critical rotating equipment, such as steam turbines, gas turbines, and large industrial expanders.
- Multi-channel speed acquisition
- High-level physical protection
- Hardware-level security output
The entire module assembly is packaged within a rugged industrial frame to operate reliably within harsh, high-noise ambient power plant environments, providing a standardized, line-replaceable unit (LRU) solution for plant turnarounds and scheduled hardware maintenance cycles. The Bently Nevada 133396-01 module is positioned as a rear-mount component that secures via fixed mounting screws directly onto the 3500 rack chassis backplane. Wiring integration is managed through high-density terminal blocks featuring Euro-style or barrier strip connection options to maintain continuous physical clamping on external pickup conductors.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 133396-01 Overspeed Detection I/O Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Monitors the rotational speed of gas turbine-driven compressors in large natural gas pipelines. If the speed exceeds the safety threshold, the module triggers an Emergency Shutdown (ESD) to prevent high-pressure gas leaks and compressor catastrophic failure.
Petrochemical & Refining
Used for hydrocracking recycle hydrogen compressors in refineries. Since the handled medium is flammable and explosive high-pressure hydrogen, the module ensures shaft stability via overspeed protection to avoid severe mechanical accidents.
Thermal Power Generation
Monitors large coal-fired or gas-fired steam turbine generator sets. Generators are prone to overspeed (runaway) during sudden grid load rejection, this module closes main steam valves within milliseconds to protect turbine blades.
Nuclear Power Plants
Applied to main feedwater pump steam turbines and main generator units in nuclear power plants. It provides redundant overspeed voting logic (e.g., 2-out-of-3) to ensure the absolute safety of mechanical equipment in primary and secondary loops.
Hydroelectric Power Generation
Monitors the speed of large hydro turbines (such as Francis or Kaplan turbines). If the governor fails and water flow goes out of control, the module commands the guide vanes or emergency gates to close, preventing overspeed destruction.
First, ensure the correct configuration of channel redundancy and voting logic (e.g., 2-out-of-3), and perform regular non-destructive online overspeed testing to prevent false trips or failures to trip. Second, strictly standardize the installation gap and cable shielding of sensors (such as eddy current or magnetic pickups) to eliminate speed signal distortion caused by electromagnetic interference.
Lastly, module hot-swapping or wiring changes must be conducted under power-off conditions, and verify that its firmware version is fully compatible with the 3500 rack and configuration software to maintain its high-standard intrinsic safety ratings.
Lastly, module hot-swapping or wiring changes must be conducted under power-off conditions, and verify that its firmware version is fully compatible with the 3500 rack and configuration software to maintain its high-standard intrinsic safety ratings.
Alternative Names
133396-O1
133396-0I
I33396-01
133396-OI
I33396-O1
I33396-OI
133396 01
Technical notes
The 133396-01 overspeed detection I/O module incorporates multiple input channels constructed with high galvanic and transient isolation barriers to structurally segregate sensitive internal rack processing circuitry from volatile field lines and external electromagnetic interference (EMI).
FAQ View All FAQ
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What is 133396-01?The 133396-01 is an Overspeed Detection I/O Module within the Bently Nevada 3500/53 Electronic Overspeed Detection System.
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What is the core function of 133396-01?Its core function is to continuously measure the rotational speed of the equipment shaft in real time and immediately trigger protection or alarm signals if an overspeed condition exceeding the safe setpoint is detected.
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How to install and connect 133396-01?The module must be inserted into the rear slot of a Bently Nevada 3500 rack (as an I/O module) and connected to external speed sensors, such as proximity probes or proximitors, via terminal blocks.
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How does 133396-01 receive signals?It receives magnetic or eddy-current signals from proximity probes, where the frequency is proportional to the shaft rotational speed.
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What critical machinery does 133396-01 monitor?Used in critical machinery such as steam turbines and compressors in petrochem and power industries.
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