When multiple applications are running, they sense each others presence and automatically interoperate to support your amateur radio dxing activities. Transceiver control with bandspread controls up to 4 alinco, dzkit. The application spectrum of the qiagility setup manager software will be expanded in the future with development of plugins for genotyping, pathogen. Insufficient oxidation between aluminum rotor bar and steel core resulting in the. Your motor shop may have a record of the rotor bar count for your particular motor or another identical motor. Once completed, a confirmation email will be sent to you. Its main function is that of an insulation tester designed to safely detect weak or unstable insulation at voltages far below what the apparatus being tested is designed to withstand. Keys formatted like asdfqwerzxcvasdf will not work.
The rxradiofrequency signal shows how effectively the cranks communicate with the computer in order to avoid failures during the wireless updating process. A torque spectrum showing slip frequency peak and two multiples is shown in figure 10. The materials can be imported from the software database or they can be defined by the user. This paper investigates the effect of the rotor slots bars number of a three phase. The universitys manufacturing department helped with the creation of the prototypes. Software applications like mcegold can help identify the number of bars, but. A condition monitoring vector database approach for broken bar fault diagnostics of induction machines.
So1, so2, so3 impeller energy bearing whirl slot magnitude rotor bar fault dynamic eccentricity short indicator. Run the machine at its operating speed be sure that operating speed is far from resonance frequency of. Windows vista, windows 7, windows 10 32 and 64 bit. Gao, and ruqiang yan2 1 department of mechanical engineering, university of connecticut, storrs, ct, usa 2 school of instrument science and engineering, southeast university, nanjing, china email. Schematic representation of the modeling of a broken rotor cage bar. It has a status window to the left colour bar, status in text, and a. Tandem station for change of test rotor during testing. The rotor in the squirrel cage induction motor are shorted end to end by aluminium bars. The detection of broken rotor bars in variable speed. Before understanding how rotor bar analysis works, it is important to understand how the rotor works with the stator, and the effect a broken rotor bar has on the system.
Cold soldered or missing connection between bar and end ring. Pstrotator is a windows program used to control antenna rotators also called rotors in azimuth and elevation or just azimuth figure 1. If you dont have an account, select create an account and register your product. Equally important is an improved function for updating data between the. Service contracts, on demand repair, preventive maintenance, and service center repair. Detecting broken rotor bars prevents catastrophic damage.
This paper presents the use of a fuzzybased statistical feature extraction from the air gap disturbances for diagnosing broken rotor bars in large induction motors fed by line or an inverter. Database software are those kinds of software which let you manage and organize your data on your computer system or pc. There are many free and paid database software for windows but it can be difficult to select the best ones. The shaft also carries the commutator a longlasting rotary electrical switch that periodically reverses the flow of current in the rotor windings as the rotor bar rotates.
Rotor bars a brushed dc motor has a set of rotating windings wound on an armature mounted on a rotating shaft. Alltest pro online ii software is used to analyze and report both the electrical and mechanical condition of the entire motor or generator system. The itig is a complete all in one winding analyzer. Fem modeling of the induction motor with rotor faults. Emerson csi 2140 user manual pdf download manualslib. Developing a smart, problemoriented analysis system that uses the internet of things iot to remotely monitor the facility in real time, quickly convert large amounts of data to facility management, and. Browse through a list of free utilities, drivers, software, and links to topicrelated sites. Increasing the efficiency and determination of the number of broken rotor bars in. Rotor control software category is a curation of 10 web resources on, pstrotator, rotorcraft, satellite tracking with winrotor. Lessons in this case study include a demonstration that the load does not impact the relative relationship between peak voltage and current frequencies while tr ending a fault. Since 1994, rma has been helping engineers model and analyze rotating equipment quickly, efficiently, and reliably. Pstrotator antenna rotator software application for radio astronomy whitham d.
During data analysis or a troubleshooting effort on a threephas e squirrel cage induction motor, we are often left wondering ho w many rotor bars are manufactured into the rotor. Control software using the zl1bpu native protocol, it would be quite straightforward to develop pc dos, linux or windows software to control the rotator. Wide range of application up to rotor od of 125 mm. Dsxr solution for smart railway transportation delphi sonic. Model the dynamics of threephase roundrotor or salient. Skew angle in squirrel cage induction motor electrical. Toast customers can easily fulfill orders, update online and inhouse menus, and manage staff payroll. Pstrotator antenna rotator software application for. Diagnosing rotor bar issues with torque and current. Cyme power engineering software motor starting analysis. The method is based on the analysis of the magnetic flux density variation in a hall effect sensor, installed between two stator slots of the motor.
Our solution includes both hardware dsxr and software dsx. These softwares can be easily downloaded from the internet and can be placed in the system for quick access. A database of rotor fingerprints can be used to allow for further statistical comparisons. The proposed method combines a fuzzy inference system. Modern highlevel languages are pretty straightforward in. From our original q rings to our unprecedented dualsided power meter, 2inpower, we apply technology to help you become a stronger, faster, and moreefficient cyclist. Software designed to track inventories, manage schedules, aggregate data, provide resource visibility, and integrate with other lab systems. Rotor updates power meter firmware, software to improve. Electrom instruments itig winding analyzer now offering daily rental rates on this item. To access software downloads for your product, you need to create an account. Pdf determination of the number of broken rotor bars in. A condition monitoring vector database approach for broken. From the analyze main menu, press f7 more experts f6 rotor bar test motor current.
Rma develops and supports software for rotating machinery analysis. Toast is an allinone pos and restaurant and bar management system. Like wspf, it will be surrounded by 2 x fline sidebands. Think of bar cop as an excel application on steroids. Motor ebay link utilizes motors industryleading fleetcross to create better listings on ebay.
Electrom instruments itig winding analyzer sales, rent. Download ham radio deluxe software, user guides, manuals. Dxlab is a freeware suite of eight interoperating applications that can be installed independently in any order. Significance of rotor slots number on induction motor operation. Bar cop downloads to your computer and uses excel to power its core functionality, so if you have used excel you can learn how to use bar cop in about 15 minutes. The guesswork about rotor bars being good or bad can easily and quickly be eliminated for a motor that can run. Induction motors faults detection and diagnosis by using dedicated software. Listed under the softwareantenna rotor control category that is about rotor control. Abb diagnostic software suite, monitoring the motor or generator and processing the vibration and temperature data onboard. The basic idea of the rotor system comes from this school where some students developed the initial prototype in 1995. Fully automatic testing with goodbad evaluation according to preselected parameter tolerances. Includes rotor bar and stator slot database for over 8000 motors.
Many problems, including high 2x line frequency and brokencracked rotor bar problems, will almost always cause an audible, pulsing hum in the motor that anyone can notice. Evaluation of individual bar properties and overall performance. Kindly guide from where i can get datasets for induction motor rotor bar fault detection. Electrical problems are often apparent through means other than a velocity spectrum. Motor automotive data repair guides shop solutions. Porosity either in the end rings or the rotor bars due to faulty injection processes, inferior aluminum alloy quality, andor gaseous contamination. Industry software applies the complex algorithms necessary to make these signals more meaningful for analysis. A lot of time is wasted on diagnosis when a rotor bar issue is not obvious. Like the number of winding slots, we wont know the number of rotor bars but its not important the pattern of peaks separated by 2. Base values, transformation ratio, and rotor parameters referred to the stator. Induction motors faults detection and diagnosis by using. The dedicated software is based on the access database and the decision support system. Proposed fault diagnostics of a broken rotor bar induction. The developed system is capable of identifying the number of rotor broken bars.
The reason for the failure was the detachement of the tangential keys from the rotor causing damage to the stator core fig. To find the root cause a detailed analysis of the data from the database of the installed monitoring system was performed. Rotor bike components crafts products with a specific intention. The vibration frequency, therefore, is the number of rotor bars x rpm rotor bar pass frequency rbpf. There is one good arguument against bothering to collect the two special electrical readings. These faults may be detected by examining the frequency spectrum of the stator current, while the motor is operating under loaded conditions, for the presence of characteristic frequency components.
Does the software contain a complete bearing database. Inventory can be complicated, but the software you use shouldnt be. Page 128 analyze and advanced analyze the analyzer averages vibration from other shafts turning at other speeds and vibration from the reference shaft that is not harmonically related to the turning speed. Generally, there is an inherent static eccentricity below 10% in a broken rotor bar induction motor and therefore study of the mixedfault case could be considered as a real case. The fingerprints can be compared with subsequent fingerprints in the future to determine if a progressive rotor bar failure is occurring even though the rotor bar magnetic field performance is still within the bar to bar comparative limits. Brokenrotorbar diagnosis for induction motors jinjiang wang 1, robert x. With online ordering, advanced realtime reporting and loyalty programs built in, toast eliminates the. Download ham radio deluxe software and hrd product manuals ham radio deluxe software. Whether you need a refresher on database software basics, or are looking to deepen your understanding of core concepts, read on. Specifically does any one have access to data from laii laboratory of. Qiagility setup manager software offers a complete solution for qpcr setup optimized for use with qiagen gene expression kits, such as quantitect, quantifast, quantinova and rotorgene kits. It delivers superior ac diagnostics for the evaluation of the health of the stator electrically and mechanically, rotor, air gap, and evaluates the entire driven load belted, geared, bladed, etc. Broken rotor bar is one of the commonly encountered induction motor faults that. Read this before you download and install this software.
Wikipedia states that the conductors are often skewed slightly along the length of the rotor to reduce noise and smooth out torque fluctuations that might result at some speeds due to interactions. The proposed fault diagnostics system has resulted in a logged data that provides the fault condition according to the data base status. Fuzzybased statistical feature extraction for detecting. Introduction this article describes the pstrotator application software pstr. In addition, it is adequate for use in an online fault diagnostics system in induction motor drive. Rotor bar defects for squirrel cage induction motors. Built specifically for foodservice, toast is remarkably easy to use. The running speed peak for a two pole motor is very close to the fundamental frequency. Sell medium and heavyduty truck parts on ebay profitably and easily.
Rotor bike components comes from one of the nerve centers of technological development in spain, the aeronautical engineering school of madrid. The cyme power engineering software features an optional motor starting analysis module for dynamic, locked rotor and maximum start size analysis which is dedicated to simulating the effects of induction and synchronous motor starting in threephase electric power systems. Although the actually code is quite simple, it is the configuration issues such as importing right library, drivers to use, how to access them, and so forth, that make it an uphill battle. Many current methods of rotor testing lack the sensitivity to detect rotor bar defects beyond major issues such as a broken rotor bar. A novel high impedance fault detection and location approach based on wavelet transform and ann was shown in 97. Rotor bar failures are not common in properly applied systems. After the user has logged in, the selected mode is displayed in the status bar. That software license server was replaced in july 2019. In this case st udy a 400 0 hp motor without starting restrictions is followed through to rotor bar failure. Large statorrotor eccentricity a unit failure case. Rqawin software for windows with extensive package for statistics and zoom. Rotor bar problems are infrequent, in most applications. Rotortester rotor test for squirrel cache rotors rotortest.
299 1366 817 252 1343 393 1403 1363 132 1472 778 148 17 1146 634 1253 598 392 355 1416 1314 551 1185 362 738 691 1163 27 243 528 531 436 669 643 1310 668 881 557 1223 1092 887 465 898 416 1238 618