Description
3500/72M 140734-08 Mechanical protection system
3500/72M 140734-08 Mechanical protection system
Module Clips Drive controller servo motor
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From the waterfall plot (Plot #3) it was quickly discovered that the increase could be attributed to a component at 3.1X. Rolling element bearings have characteristic frequencies that are used as indicators of damage to a specific bearing part. In this case the vibration at 3.1X matched the BPFO (Ball Pass Frequency Outer ring) of the specific bearing model used for this motor, meaning there was a response in the vibration signal each time a ball rolled over an area in the outer ring. Activity at this frequency is a symptom of damage developing on the outer ring surface. Since it was only visible on vertical measurements, the location of the damage was probably in the loading zone at the bottom of one of the bearings.
Bently Nevada’s solution and added value 3500/72M 140734-08 Mechanical protection system
Based on the MDS analysis and Customer Policy the customer decided to replace the bearings during next planned stop three weeks later.
After bearing replacement the direct vibration level was reduced from 2.0 to 0.7 mm/s rms, while the component at BPFO was reduced from 1.7 to 0.15 mm/s rms. The old bearings were sent to Bently Nevada office in Bergen for validation of the findings. An area of damaged surface was identified in the middle of the outer race on the non-drive-end bearing. No visible damage was found on the drive-end bearing.
Overview 3500/72M 140734-08 Mechanical protection system
The evolution of our current Acceleration and Velocity sensing tools began with velocity sensors that offered a self-generating moving-coil design used by geologists to measure movement in the earth’s crust. Today we still refer to “seismic” sensors in a nod to their origin.
These early sensors yielded to the introduction of rugged solid-state accelerometers, later ushering in today’s integrated accelerometers that deploy signal processing circuitry for output signals using velocity rather than acceleration.
Our experience and expertise developed over decades offer a selection of first-rate casing-mounted accelerometers and velocity sensors with a variety of models for specific applications.
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
