Motor solo run vibration limit In solo run of motor casing vibrations are found to be within limit ( max 2. Feb 21, 2021 · Hello, I'm currently troubleshooting a new horizontal induction motor (API 541), 750 HP, 3583 RPM (59. These tests hold significant importance in ensuring the reliability and efficiency of the equipment across various applications. in an induction motor? Fill Motor Solo Run Test, Edit online. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Instantly. IEEE841 requires 0. Learn about vibration limits for various machine types. I had a high axial vibration in a 1000hp 4 pole 2300VAC motor. Old motor was removed for scheduled maintenance (overhauling) and another motor was placed on the bed. With low stiffness and damping, natural vibration frequencies in the machine operating range are inevitable, as well as reliability issues from excessive vibration Aug 6, 2010 · 1. Motor vibration limits set by ISO 10816-3 should not exceed 0. Is it OK to run it? We also plan to clean the impeller of the motor from dust. Any irregularities that could endanger the motor during the motor no-load test must be terminated. Ensure safety, measure important parameters, and accurately verify motor performance. Visit WWW. Study the standard in order to correctly interpret the chart. more IEC 60034-14:2018 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. Keep track of the voltage and current readings. Use the chart below combined with additional factors described in this manual to judge the overall vibration severity of your equipment. Reply 3 Aug 17, 2018 · Shop the IEC 60034-14:2018 standard on Mechanical Vibration of Certain Machines. Often structural issues involving resonance amplify the vibration. Motor details 600 KW, 2965 RPM, 3300 volts. For example, motor bearing vibration on the drive end was 6. Mesurage, évaluation et limites de l'intensité vibratoire. Electric motors fall into two broad groups: direct current (DC) motors and alternating current (AC) motors; alternating current motors are divided into single-phase and polyphase motors. 3 A, showing high 3x seismic vibrations axially at 3. That is just general run of the mill motors, not necessarily large or critical. For a total of few hours, let the motor run. 8 Motors, electrical components and electrical installa- tions shall be designed and constructed for the area classifica- tion (class, group, and division or zone) specified by the purchaser on the data sheets and shall meet the requirements of NFPA 70, Articles 500, 501, 502, and 504 as well as local codes specified and fwnished by the Sep 30, 2024 · During the FAT test/solo run, we noticed excessive vertical axis vibration. With respect to 2XLF peak alone, i have read a limit of 1. 7 Hz), 4000 V, 75. A working group consisting of motor end-users, consultants and suppliers initially developed API 541 approximately 20 years ago. Since the pump itself was submerged 12 feet below the top of the vessel, vibration Mar 8, 2007 · With mass added to the top of the motor and to the suction bell, the vibration levels were reduced from 1. H/V/A mm/sec RMSMNDE : 1. Solo run vibration data, original installation Table 2. 18 mm/s rms details attached),but the shaft vibrations from proximity probe are of order 85-90 microns (motor DE). This presentation provides an overview of where and how NEMA, IEC, ISO and Hydraulic Institute standards In the solo run test also same phenomena is observed with low level of vibration amplitude. 3kV 593rpm that develops 7. Motor Solo Run or No Load test Motor Solo Run or the commonly called "no load test" will be performed in all of the motors installed in the industrires for efficient process requirement. 59 / 5 Dec 2, 2009 · Dear Sirs, In our plant, AC Induction motor output 200 kW motor, horizontal mounting, rating voltage 6. Jun 13, 2019 · I observed many times the presence of 2FL in FFT of induction motor solo run test, even though vibration level is normal. Can anybody clarify the technical reason behind inducing 2 * line freq. When we measured, we got high vibration on IB Axial at motor. It serves as a general guideline for determining overall machine condition based on the magnitude of vibration and changes in vibration levels over time. The recommended limit (not intended to be used as an acceptance criteria) is 1. By conducting a motor solo run test, businesses can identify potential issues before they escalate, saving time and resources. - YouTube Nov 20, 2019 · An electric motor is an electromechanical machine that converts electrical energy into mechanical energy. Testing of special-purpose motors requiring more stringent tests is specifically addressed. May 7, 2014 · Can anybody please tell me which IEC IEEE NEMA BS any other standard specifies the duration for motor solo run test I am looking for 0. Mar 1, 2017 · Structural vibration can be a problem with most machines, particularly with vertical turbine pumps. May 6, 2013 · What we have here in our plant is a 2mm/s limit for motor solo run. May 4, 2018 · The document reports on vibration analysis of equipment. However, high shaft runout can lead to inaccurate vibration readings, because so Aug 27, 2020 · Vibration amplitudes on motor were recorded as high 0. In this program, data from nameplate is assessed for its correctness after the motor is installed at site through online vibration and a model of induction motor is developed with the help of online measurements and the machine ratings. Yes, the Motor Solo Run Test can help identify various issues such as mechanical faults, electrical faults, insulation breakdown, overheating, abnormal vibration, or excessive noise, which may affect the motor’s performance and reliability. This paper focuses on mechanical faults such as unbalance, Aug 9, 2010 · Hi experts,We are facing high vibration in one of our motor. However, there are those cases where the Machinery Vibration Limits and Dynamic Structural Response Vibration monitoring of rotating machinery has developed over the years to the point where it is an accepted maintenance tool. Reading sound pressure meter with sound recorder meter and digital tachometer on running pump motor. Oct 4, 2016 · Motor is run decoupled and Motor vibrations are measured in x,y,z directions. They were soon found to have unacceptable levels of subsynchronous vibration near half running speed. 19 in/s RMS while running in the POR. Operational balance must be documented The specified limit values apply to tested machines in the testing field and during commissioning. Next, the operating deflection shape was measured on two motor installations. 10816 on mechanical vibrations in machines. . 5 time the limit at the top of the discharge head. The No Load Test is done to evaluate the motor’s performance when We explain how the vibration severity table according to ISO 10816 works. I am facing with the high vibration of the ABB MV motor after overhaul, motor solo run is high vibration in radial NDE bearing, the peak is 2X RPM Velocity, and high value in Envelope (when I greasing the value decrease after 5 minute Envelope increase again). It finds alert levels of vibration in the motor non-drive end and motor drive end, with maximum amplitudes of 5. The SO texts (entry with text blocks) are the 0 2. It includes: 1. The Gene Vogel EASA Pump and Vibration Specialist When motors are installed on top of vertical pumps, high vibration is a common problem. The test will measure bearing vibration, bearing temperature, body motor temperature, starting current, running current, and noise level over Technical specifications for electric motor vibration, balancing, and testing according to IEC & ISO standards. Solo Run Electro Motor (Elmot) LV 3 Phase Dwi Hardi Sang Dhevils Mechanic 3. Aug 11, 2023 · Turn on the motor and make sure everything is working properly. 28 in/s RMS and within the specification limits The main reason to specify and approve only complete fan assemblies (fan, motor, base drive, bearings accessories, etc. vibration quantity), selain DIN EN Presented by Gene Vogel, EASA Pump & Vibration Specialist When it comes to machine vibration, “how much is too much” depends on a number of factors. The vibration, measured using an accelerometer, showed dominant 1/2X and harmonics, with 1X being the most prominent. 5 mm/s 0-p during shop solo run test. Read the full . It is also called No-Load Test of Motor. Jun 15, 2016 · Motor solo run Axial and vertical vibration high Muhammad Faizan 06-15-2016 02:42 The horizontal motor of 145 KW is tested solo, following are the vibration readings: Motor NDE H = 1. Oct 23, 2002 · A 6. It defines vibration levels A and B, with level A for standard motors and level B for motors with special vibration requirements. Aug 16, 2011 · Today we took motor solo run and the vibration reading remains steady without any increase for a period of 3 hours. Apr 24, 2012 · The recorded first and second natural frequencies are shown in Table 2. 59 in/s which is beyond critical limits therefore machine can’t be allowed to operate in such condition. The procedure involves running the motor without a load connected to test that it operates properly and is suitable for its intended service. May 4, 2001 · 2500hp, 1800rpm horizontal sleeve bearing motor During uncoupled run we see high vibration at 1x and harmonics approximately doubling in 5 minutes. 4 The radial shaft vibration, casing vibration, shaft axial position, shaft rotational speed, piston rod drop, overspeed and critical machinery temperature limits for alarm and shutdown setpoints shall be approved, in writing, by Owner. The vibrations were normal until 750 RPM and once it reached 750 RPM abnormal sound and increase in vibration levels observed and max vibration of 6. 7 mm/s velocity on the Non Drive End during our vibration measurements. The majority of which start up and behave as one would expect - normal vibration and temperature profile in line with API-541. Impact test results, original installation Peak-Hold Coast down Test To confirm the resonant frequency issue, engineers performed a second test known as a peak-hold coast down test. ) Bearing misalignment can give rub as rubs tend to be 10-20x higher Solo run test of motor :- Motor solo run test is a test that is subjected to running/spinning of motor without engagement of any load with it's own rotor shaft . 28 mm/s to 45 mm/s depending on their size and mounting type. Monitoring electric motor vibration and discovering warning signs gives you and your workers time to fix vibration problems and stay ahead of any potential motor breakdowns. 3. This standard establishes the test and measurement conditions of, and fixes the limits for, the level of vibration of an electrical machine, when measurements are made on the machine alone in a test area under properly controlled conditions. This process involves a series of steps to verify the motor’s performance, identify any issues, and optimize its operation. This document provides a summary of an individual test on a 7 MW motor. BRITHINEE. The source of the problem can be a mechanical issue with the pump, motor or coupling, or it can be hydraulic forces from the pump. Can your vibration analysts determine the potential causes of electric motor unbalance? Logic: AC motors may have unequal magnetic forces causing unbalance that may be caused by variations in the current in the stator or rotor, or air gap variations between the rotor and stator, or a combination of these conditions. The IEEE disclaims liability for any personal injury, property or other dam-age, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this, or any other IEEE Standard document. Jan 3, 2025 · Learn how to perform a DC motor no-load run test in detail, including a checklist. Norme CEI 60034-14 sur les vibrations mécaniques des machines électriques tournantes. 1 in/s RMS to below 0. Ideal for engineers. It had some issues with the bearing housings and after they were reworked in the machine shop a second time and a rub cured there still remains a puzzling high axial vibration that is at BPFO but also disappears when the power is cut to the motor. Try Now! May 18, 2018 · Figure 32 – Locations for taking vibration readings on vertically suspended (VS) pumps Top of Motor Recommended Vibration Limit A guideline for vibration limits at the top of the motor has been added as to ANSI/HI 9. When evaluating the general vibration of the Installed Electric Motors the RMS vibration velocity is generally tested [mm/s] (frequency bandwidth between 10Hz and 1000Hz). 1 mm/sec observed at Motor DE Horizontal with harmonics of 80 Hz. INTRODUCTION - HISTORY IEEE 841, API 541 and API 547 are all AC induction motor standards developed by the petrochemical industry. The limit values for the vibration severity values are defined by ISO 10816-1 depending on motor classes. It is applicable to DC and three-phase AC machines, with shaft heights 56 mm and higher and a rated output up to 50 MW, at operational speeds from 120 min–1 up to and including 15 000 min–1 Jul 2, 2012 · Figure 2 of the same standard gives housing limits 0. The additional test requirements specified by the API standards, especially with regard to balance and vibration are examined. AC Motor AC Motors Types Single phase (shaded pole; split-phase; capacitor start; capacitor-run; capacitor-start and run). 8 mm/sec is collected during the solo run test, I would not balance or do any corrective action before running the motor to its driven machine and take another measurement under normal operating conditions. 9mm/s for new motors and 3. After the solver validation, the one-way FSI approach is used to find the critical hydraulic eccentricity magnitude of a vertical turbine pump impeller to limit the vibration magnitudes on motor Gene Vogel EASA Pump and Vibration Specialist When a motor is test run in the service center, the two most common vibration frequencies that occur are at 1x rotating speed (1x rpm) and at 2x line frequency (2x lf). Vibration measurement of the radial shaft movement in rotating components is critical to electric motor monitoring and diagnostic testing. This test helps ensure that the motor runs efficiently and meets specified performance standards. The motor comply with EN 60034-14. Problems in rolling element bearings account for the largest number of failures of induction motors, therefore a review is presented on the use of vibration measurements and spectrum analysis to diagnose faults in rolling element bearings. The document classifies vibration levels in industrial electric motors into four classes based on RMS vibration velocity, with Class 1 being the lowest level and Class 4 being the highest level that can cause damage. HT Motor Solo Run (Uncoupled Run): Close and open the breaker/contractor. However, we have two recurring issues vendors are Jun 9, 2022 · The Smart Machine Checker (SMC), and the Falcon (vibration data collector/analyzer) use Accurex™ automatic diagnostic software to determine vibration problems on rotating equipment. Increasing behaviour is observed only in the coupled condition. Those levels can be redefined by the user according to the motor operation Oct 25, 2018 · EN IEC 60034-14:2018 - NEW!IEC 60034-14:2018 is available as IEC 60034-14:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. we decoupled the pump and conducted vibration test for motor solo run (motor coupling hub installed) and found overall vibration for DE&NDE 9 mm/s Peak in one radial direction and other direction is about 3 mm/s Peak. Location for testing Sep 29, 2007 · On site we have a vertical motor 1090kW 6. ) is vibration-tested as a whole and verified as running within allowable vibration limits. This Indian Standard (Part 3) which is identical with ISO 10816-3 : 1998 ‘Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts — Part 3 : Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/rein and 15000 r/rein when measured in sitd issued by the International The document discusses standards and measurements for motor vibration. After 850 RPM the vibration levels decreased to 1. Perfect for electrical machines with shaft In order to achieve the above vibration limits for an assembled motor it is recommended that the following minimum rotor balancing standards be used. Details of the project name, location, equipment specifications, and manufacturer. Feb 5, 2017 · Please measure and record the 1X and 2X vibration amplitude and phase on all 4 motor feet, all 4 hold down bolts, and adjacent to each motor foot on the base plate. Everything you need to know about vibrations in rotating machinery. Measurement of vibration is done at six A motor solo run test is a procedure used to assess the performance and functionality of a motor independently, without any load. The standard alert and critical vibration levels defined in the WEG Motion Fleet Management, in the case of the electric motor asset, are the limits defined in ISO 10816-3 for motors installed in flexible bases, already considering 25 % beyond the vibration limits of zones B and C of the standard (Table 1. Parameter yang dilihat dari sisi mechanical adalah vibration (getaran), kecepatan (rpm), dan temperature (suhu), atau bahkan berserta noise (suara). 5 KW, 415 Vac/ 50 Hz, 2930 rpm (name plate motor) kita tes dengan menggunakan supply tegangan di workshop 3 phase, 380 Vac/ 50 Hz? 2. This technique is generally sufficient. Vibration should not exceed value depending upon design parameters like bearing type, load etc. 6 KV, 1500 HP, 3000 RPM cage horizontal sleeve bearing motor is driving a compressor through an intermediate shaft having 4 flexible plates of 3 mm thick at each end. If you look at the last page, the Apr 21, 2018 · Do a complete functional check ( sequence check ) of the ht motor starter panel, with the breaker /contractor in ‘Test’ position, Check that all motor auxiliaries ( such as lube oil pump, etc) are operating properly. Commissioning of an induction motor is a process that ensures the motor operates efficiently and reliably within its required application. 177 in/s RMS in its allowable running range. 2. The RDI VI-1 is the easiest to use vibration meter we offer. Dec 17, 2011 · NEMA Standards Publication MG 1: Motors and Generators, for example, sets vibration limits for motors by machine type, whereas ISO standards designate different vibration levels for large rigid foundations and large soft foundations. Pump vibration limits specify acceptable range of vibrations for different types of pumps. If the 2. Use of an IEEE Standard is wholly voluntary. Polyphase motors can be induction or synchronous. One case I faced during motor's acceptance test (Solorun test) was to use a roller brake - for motor with roller bearings - after the minimum load calculations. All readings are bearing housing accelerometer readings. Current, power, speed, direction of rotation, vibration and temperature readings are measured and compared to limits. COM for more motor and generator ques Explore ISO 10816 standards for vibration measurement in machinery. When separation of no-load losses is to be accomplished, run this test and read temperature, voltage, current, and power input at rated frequency and at voltages ranging from 125% of rated voltage down to the point where further voltage reduction increases the current. Apr 21, 2025 · vibration limits – Introduction This article talks about Vibration Limits, in machines, according to various criteria. Since 2005 motor stop (not operation)and the previous operated on 28 November 2009 ago. Well, I believe I actually got the BPFO to go away. It is applicable to DC and three-phase AC machines, with shaft heights 56 mm and higher and a rated output up to 50 MW, at operational speeds from 120 min–1 up to and including 15 000 min–1 Oct 1, 2024 · Despite the generally safe and reliable dynamic behaviour of synchronous machines, large synchronous motors and generators can experience high vibration due to various mechanical and electrical faults. Many users request lower. 37kw to 250kW 400V 690V motors. 1 mm/s. Measurement quantities are the vibration levels (velocity, displacement, and/or acceleration) at the machine bearing housings and the shaft vibration By conducting a thorough solo run test, you can ensure your electric motor is ready for integration into your system, minimizing the risk of costly repairs or downtime. This part of IEC 60034 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. While these aren’t always the only factors that Over time, motors can develop vibrations that can later lead to system failures. Nov 23, 2021 · ISO 10816 consists of the following parts, under the general title Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts: — Part 1: General guidelines — Part 2: Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min Are you working with electric motors or there is the need to specify motors and you need to know what standard applies to what area of electric motors? The table below will be of great help as it itemizes the basic standards that define all areas of electric motor design, construction and installation: Aug 9, 2015 · The test conditions and vibration limits described here are those found in IEC 60034-14. feet which do not have solid flat contact with the base prior to the tightening of the holding-down bolts. This involves disconnecting the pump from the motor and running the motor independently to measure its vibration levels. The IEEE Standard 841-2009 Severe Duty, TEFC, Squirrel Cage Motors Up to and Including 370 KW (500 HP) Aug 1, 2018 · scope: This part of IEC 60034 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Three phase Advantages over dc – used in all other applications and due to the brush-less design less maintenance is required. The Vendor introduce the jacking oil system to support to run this motor alone for de-coupling condition with low speed. Results/Solution Findings: The pumps and motors had acceptable vibration within the running speed range: Overall vibration limits set by HI 9. The vibration peak velocity (mm/sec) with the motor decoupled was as below DE - H/V/A - 16/9/7 ODE - 15/8/8 Trim That way, you can test run the motor long enough to get “no-load” current, speed and vibration readings, without potentially damag­ing the bearings. Next, you observe the motor's vibration, temperature, and sounds. The hazards of motor vibration Oct 31, 2022 · These critical variable frequency drive limitations should be considered when selecting the proper VFD for motor speed control applications. The heat run must be conducted at full load, for four hours or until the bearing and stator winding temperatures stabilize. During the solo-run some abnormalities were noticed as below. Motor solo run vibration. 5 mils p-p at 1× running speed during the coupled run, but less than 1 mil p-p during the motor solo run. Accurex™ performs a first order diagnostic based on ISO 10816-3 specifications (based on overall vibration levels in velocity, in inches per second/peak, or mm/sec/rms), and a second order diagnostic based on ISO10816-7 Pump ISO 10816-7 gives instructions for the evaluation of vibration on rotary pumps for industrial applications with nominal power above 1 kW. 4 for a 300 HP system should not exceed 0. 1 ips above 1200rpm for machines rigidly fastened to massive foundation. Also developed an ominous rumbling after 5 minutes getting louder and louder. One of the main reasons to purchase the complete package from Greenheck is that the entire assembled unit (including the fan, motor, drives, base, bearings, accessories, etc. 5. Feb 18, 2009 · If this motor is "general purpose", both the vibration values do not sound high. 1. Knowing which standard and/or tolerance applies requires a working knowledge of the standards and some basics of vibration terminology. I’m working in a new refinery project witnessing about 3,600 motor solo run tests. Also the motor drives an axial flow Oct 17, 2009 · Replies 5 Views 10K Jun 17, 2025 waross 750 HP Motor Solo Run Test Showing High Axial 3x Vibration Amer93 Oct 2, 2023 Electric motors & generators engineering Replies 0 Views 399 Oct 2, 2023 Apr 14, 2025 · This article presents the vibration limits in electric motors as defined in the ISO series of standards. Despite multiple checks and balances including rotor balancing, bearing rebuilds, and motor base corrections, the issue persists. Feb 17, 2021 · Vibration Monitoring of Induction Motors - December 2020Chapter 1 provides an overview of publications on sources of vibration in electrical machines. The classes help A wide variety of published standards describe acceptable vibration limits, including the ISO/7919 series (5 parts) “Mechanical vibration of non-reciprocating machines – Measurements on rotating shafts and evaluation criteria” and the ISO/10816 series (7 parts) “Mechanical vibration – Evaluation of machine vibration by measurements on Feb 4, 2021 · The ISO 10816-3 standard provides criteria for evaluating the vibration of machinery according to measurements taken on non-rotating parts, such as bearings, bearing pedestals, or housings. The detection of possible defects is usually not a rocket science, however very important step in identifying electrical problems on AC motors is to verify that the vibration is, in fact By conducting a thorough solo run, you mitigate the risk of equipment failure and downtime, contributing to the efficiency and longevity of the motor and associated systems. MEP - Vibration Meter- Vibration Limit - Solo Run Test - Motor - Vertical, Horizontal & Axially. We have a motor for BFP Pump with sleeve bearings. Mechanical vibration — Measurement and evaluation of machine vibration — Part 3: Industrial machinery with a power rating above 15 kW and operating speeds between 120 r/min and 30 000 r/min Vibration; vibration readings must fall within acceptable limits when the motor is unloaded, while readings throughout the run test are for trending. e. It outlines IEC/EN 60034-14 as the standard, which specifies vibration acceptance test methods and limits for rotating motors separated from any load. It provides a table showing the maximum recommended RMS vibration velocity for motors from 0. pdf of this story " Understanding Slow Roll Runout in Electric Motors " here for more information and images. I assume it is not a vertical machine since you corrected the foot. Aug 17, 2018 · IEC 60034-14:2018 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. Further analysis and an action plan are recommended. When the motor was sent to site, they have conducted the motor solo run. For safety, make certain that the output shaft has a guard to prevent accidental contact. Balancing for motors below 5 hp is not necessary unless requested. High 1x rpm is often corrected by balancing, and the 2x lf is traditionally attributed to air-gap anomalies or voltage or winding unbalance. A basic understanding of the principles involved, together with a simple trouble-shooting guide and the right Aug 16, 2018 · IEC 60034-14:2018 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. solo run test/no load test for any trouble shooting. The operating speed of the induction motor driven pumps was 3,575 RPM and the largest vibration component was detected at 1,750 CPM. This document should be supplemented by ad-ditional requirements applicable to specialized rotating electrical apparatus including, but not lim-ited to, listed explosion proof, dust-ignition proof, and other listed machines for hazardous locations; and specific or additional requirements for hermetic mo-tors, hydrogen-cooled machines, submersible motors, traction motors, or Class 1E nuclear Dec 15, 2023 · GB10068-2000, "Vibration Limits and Test Methods for Rotating Motors," specifies the vibration limits, measurement methods, and criteria for determining rigid foundations for motors with different center heights. This article is part of a series of articles included in support of Course on Vibration Limits When it takes place vibration analysis gears, in a vibration analyzer when performing predictive maintenance, common vibration analyzer This article presents the vibration limits Vibration levels of local structures, machinery, and equipment are to be measured to verify that vibration responses on board do not exceed the vibration limits defined in Section 2. Jul 9, 2017 · Motor solo run test sheets are also attached, documenting inspection tests to be performed on equipment at the substation, including voltage, current, vibration, temperature, and noise level readings over time. Spectrum obtained from the Casing readings and Buffered output of bently panel are attached herewith. Abstract New vertical pumps were installed in liquid sulfur service. CMVA Canadian Machinery Vibration Association Association Canadienne ACVM n Vibration Machines Guidelines for Evaluating Vibration Based on ISO 10816-3:1998(E). Identifying the vibration problems that can occur in induction-motor drives have an added complexity due to the rotating magnetic-fields in the machine. Thanks for sharing. 4-2016 under Appendix C. Sedangkan pada sisi electrical adalah arus starting dan arus normal motor keadaan no load, dan beberapa motor menggunakan RTD sehingga dapat Jan 30, 2018 · Vibration measurement a requirement on API motors. 6. Sep 20, 2013 · When commissioning or re-commissioning motors, precautions shall be taken to avoid excessive vibration caused by the phenomenon known as ‘ soft foot ‘; i. If the motor vibrates or gets too hot during the test, check it out. Solo Run test of MOTOR. Apr 21, 2018 · Do a complete functional check ( sequence check ) of the ht motor starter panel, with the breaker /contractor in ‘Test’ position, Check that all motor auxiliaries ( such as lube oil pump, etc) are operating properly. Jul 21, 2025 · vibration analysis in electric motors e as f Vibration forms and natural frequencies of stator vibration Depending on the modal pattern and excitation strength frequencies, as described above, the stator will vibrate in one or more of its bending vibration modes. Time waveform Dec 8, 2015 · Tujuan dari Motor Solo Run adalah untuk mengetahui kondisi kinerja motor sebelum dicouple dengan bebannya. It defines the special requirements for evaluation of vibration when the vibration measurements are made on non-rotating parts (bearing housing vibration). These pumps are commonly suspended from the discharge elbow with the motor mounted above, making them difficult to stiffen and damp. No description has been added to this video. 1 on page 7). 2 mm/sec. we suspected balance problem and replaced motor with new one (with the 3. An understanding of the nature of this style pump and the Sep 23, 2023 · How do you do motor solo run test? To do a motor solo run test you need to connect the motor to a power supply. Find vibration test procedures, limits, and technical changes. 2mm/s peak for in-service motors. API bases its tolerances on flow rate, while HI defines them in terms of input power. Apr 1, 2001 · The limits apply to a motor mounted on a seismic mass, and uncoupled or coupled to a piece of equipment in a way that eliminates any vibration in the driven equipment. Click here for product and ordering information. A visual inspection was performed before the test to check for any issues. NEMA MG1 requires 0. ) as a vibration-tested assembly is to ensure the unit will run within allowable vibration limits. 08ips if I remember right. The vibration levels refer to radial vibration on all bearings and axial vibration on thrust bearings. Based on this standard, it can be determined whether the motor meets the requirements. Motor total axial float showing 11mm Carried out solo run test for one hour under observation found full axial movement of the motor to the pump side and we found magnetic center 10mm MEP - Vibration Meter- Vibration Limit - Solo Run Test - Motor - Vertical, Horizontal & Axially. Jul 22, 2013 · The extremely low levels (0. Combining an easy-to-use sensor with a free mobile app,* you can quickly and easily identify machine condition and share machine health data within your organization. Some would say that you are running blind The No Load Test and Mechanical Run Test of the motor are two critical pre-commissioning procedures utilized to examine the performance and functionality of electric motors in all process industries. 12 ips bearing housing vibration for similar condition. Anybody has an idea on how the jacking oil system is effective on single bearing motor running in de-coupling Vibration Diagnostics for Industrial Electric Motor Drives The induction motor is the most widely employed industrial electric-drive. Much effort has been applied towards developing guidelines regarding acceptable absolute levels of vibration. 2-7. Jan 15, 2021 · 3. Adakah standard lain untuk batasan vibrasi dalam pengetesan motor (limits for max. Dec 27, 2022 · K47 series helical gearbox with 71B5 input flange manufacturer planetary gearbox bonfiglioli gearbox price list marathon electric distributors marathon electric motor Initially motor trail taken after alignment on 06/06/18. The severity of vibration is the maximum value of vibration found among all the recommended measurement points and directions. Hello all, I have vertical pump for drain pit and after overhauling the pump found high vibration levels. What in your technical opinion could be the reason behind this given that shaft May 12, 2007 · The testing was found OK. 79K subscribers 8 Apr 28, 2022 · To do a motor solo run test you need to connect the motor to a power supply. Table 1. Mar 28, 2025 · Addressing Shaft Imbalance • Source Identification: Conduct a motor solo run test to isolate whether the imbalance originates from the motor or the pump. Please find the spectrum of the same. Operational balance is performed if the limit values are exceeded for bearing and motor vibrations or in the event of higher rotational frequency vibrations (more than 50 % of the broad band vibration limit). 3kV , LF is 50 Hz with IB and OB bearing are 6224, pole 4 direct couple to centrifugal pump. Vertical motions on the motor, base plate and foundation were very low. 04 ips-pk) of vibration at 7200 cpm generated by the motor were exciting the system natural frequency and causing the large vibration responses. Apakah ada pengaruhnya terhadap besar vibrasi yang muncul, jika sebuah motor 3 phase, 9. Follow me on instagram👇👇👇 / technicalmuhandis Follow me on Facebook 👇👇👇 / technicalmuhandis Your Query - solo run Pump vibrations cause noise and damage to pump and its parts. Mar 1, 2019 · This will be a two part thread. It is applicable to DC and three-phase AC machines, with shaft heights 56 mm and higher and a rated output up to 50 MW, at operational speeds from 120 min -1 up to and including 15 For the motor solo run, the center piece was removed from the coupling and the motor vibration was low. Nonetheless, they have been adopted by other process industries that also require motors with high levels of reliability. Could you please check the spectrum as attached file and give me your advice? Jul 7, 2021 · The fault diagnosis of induction motors, being probably the most common drivers used for industrial machinery plays an important role to reduce the catastrophic failures and production lost tonnage. IEC 60034-14:2018 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when Mar 11, 2018 · Dear Edison, We may need to run this motor alone for maintenance purpose (de-coupling from the compressor) i. 5 I.