motors gearbox and tracks

Ngày tải lên: 26/05/2014, 15:54

... the catalog and in this documentation and only in conjunction with Siemens approved or recommended third-party equipment and components Adequate transport, storage, installation and mounting ... motor and signal cables must be run separately and shielded on both ends The mounting rail and the mains filter must be mounted surface to surface with the mounting plate Note For FM-STEPDRIVE and ... installation and mounting as well as careful use and thorough maintenance are prerequisites for safe and reliable operation of the product Trademarks SIMATIC® and SINEC® are registered trademarks of the...

Ngày tải lên: 21/11/2013, 13:45

... (IEC) sets the standards Or at least many countries base their standards very closely on the IEC standards (for example, Germany's VDE 0530 standard and Great Britain's BS 2613 Standard closely ... temperature class Slip-ring motors, commutator motors and brake motors can all be made in flameproof versions No external parts may cause sparks The motors must have both an internal and an external earthing ... 34-1 standard) The NEMA and IEC standards are quite similar, although they sometimes use different terminology Thus, if one understands the IEC nameplate, it is fairly easy to understand a NEMA...

Ngày tải lên: 12/01/2014, 10:43

... lifting and turning 3BFP 000 050 R0101 REV C Transport and Unpacking - 11 Manual for Induction Motors and Generators 2.4 Checks upon arrival and unpacking 2.4.1 Check upon arrival The machine and ... Induction Motors and Generators Chapter Installation and Alignment 3.1 General Good planning and preparation result in simple and correct installation and assure safe running conditions and maximum ... Establish and maintain safe equipotential bonding The clearances between uninsulated live parts and between such parts and earth must not be below the values of appropriate standards and values...

Ngày tải lên: 26/01/2014, 09:20

... 3 Motors and loads Summary 3.1 Three phase asynchronous motors 38 3.2 Single-phase motors 42 3.3 Synchronous motors 43 3.4 Direct current motors commonly named DC motors 45 3.5 Operating ... synchronised asynchronous motors and stepper motors v Linear motors Their structure is the same as that of rotary synchronous motors: they consist of a stator (plate) and a rotor (forcer) developed ... steps per revolution Step A Fig 14 44 Type of stepper motors Motors and loads 3.3 3.4 Synchronous motors Direct current motors commonly named DC motors The motor rotates discontinuously To improve...

Ngày tải lên: 15/02/2014, 08:37

Ngày tải lên: 18/03/2014, 15:21

... Fabris, and Leonard DeGraaf at the Edison National Historic Site; John Mehlberg; and Brother Russell Several portions of Vocal Tracks appeared in an earlier form in Film Quarterly and Television and ... Meinhardt, Ann Twombly, and two readers offered encouragement and made thoughtful and insightful suggestions that helped me sharpen my arguments and polish my prose Various friends and colleagues have ... friend, interlocutor, collaborator, and mentor My parents were more than generous with their love and support while I wrote Vocal Tracks, and my sons, Jonah and Henry, consistently reminded me...

Ngày tải lên: 11/06/2014, 12:46

... cyclostationarity: theory and application to gear fault monitoring,” Mechanical Systems and Signal Processing, vol 22, no 3, pp 574–587, 2008 [20] J S Bendat and A G Piersol, Random Data: Analysis and Measurement ... the number of the data samples, and x and ψ γ are the mean values of x(k) and ψγ (k), respectively Because of the approximate zero mean property of the wavelet and the vibration signal, (6) can ... application in gearbox vibration: (a) the gearbox vibration signal, (b) the spectrum of the gearbox vibration, (c) the correlation value of CF, (d) the correlation value of CMWCF, and (e) the comparison...

Ngày tải lên: 21/06/2014, 08:20

... 1755849 03/2011 Before you begin Read and understand these instructions before performing any procedure on this drive DANGER RISK OF ELECTRIC SHOCK • Read and understand this manual before installing ... • ATV71HpppY contains: - The drive and one or two DC chokes mounted on the same pallet Handling/Storage To protect the drive prior to installation, handle and store the device in its packaging ... between the PO and PA/+ terminals on the drive (see note and next page) - Connect the grounding strip between the DC choke chassis and the drive - Then mount the cover on the chassis and secure it...

Ngày tải lên: 28/06/2014, 16:20

... ON OFF ON OFF ON OFF ESIM outputs A and B divided by A and B divided by A and B divided by A and B divided by A and B divided by 16 A and B divided by 32 A and B divided by 64 ESIM disabled ON ... Programming Manual 1755843 03/2011 Preliminary recommendations Handling and storage To protect the drive prior to installation, handle and store the device in its packaging Ensure that the ambient ... equipment damage Handling on installation 45° max ALTIVAR 71 drives up to ratings ATV71HD15M3X, ATV71HD18N4 and ATV71HU75S6X can be removed from their packaging and installed without a handling device...

Ngày tải lên: 28/06/2014, 16:20

... sales and business result in Hino Motors Vietnam, Ltd and suggestions for improvement” will point out the importance of having a healthily and effective accounting department for sales and business ... system for sales and business result Because of the importance of accounting for sales and business result, I chose “Accounting for sales and business result in HINO MOTORS Vietnam, Ltd and suggestions ... transactions and movements of each type of goods and products under quantity, quality, model and value; - Fully, timely, accurately reflecting and recording sales, sales deductions and expenses...

Ngày tải lên: 24/08/2014, 05:25

... signals and FFT spectrum, (a) normal, and (b) defective bearing Fig Frequency domain and time domain vibration signals of a rotor unbalance case in three directions Fig Frequency domain and time ... frequency sidebands The quality and effectiveness of a diagnosis procedure is most often limited by the availability of capable and skilled personnel With the equipments becoming more and more complex, ... is becoming a standard practice The real time condition monitoring and diagnosis are becoming the realistic and effective techniques -2- The work deals with some basics of understanding of induction...

Ngày tải lên: 13/11/2014, 06:43

... and kinesin 4.1 Generalized efficiency of biological molecular motors kinesin and F1-ATPase 46 xii 4.2 Generic kinetic diagrams and its implementation by biological nanomotors … 48 kinesin and ... of molecular motors will yield clues of how to design and fabricate a high-performance motor, and also may help to understand the relation between thermodynamics and performance of motors An analysis ... Characters of biological nanomotors kinesin and F1-ATPase: directionality 33 3.3 Generic transition diagram and its implementation by biological nanomotors 35 kinesin and F1-ATPase 3.4 Maximal...

Ngày tải lên: 10/09/2015, 09:27

... Related to Spindle Motors in Hard Disk Drives 1.3 Performance Evaluations and Design Optimization of Spindle Motors 12 1.4 Hard Disk Drives and Permanent Magnet Brushless DC Motors Organization ... eccentricity and 100% whirling speed 144 Figure 5.32 Structure and winding layout of 8-pole 6-slot PM motors 146 Figure 5.33 Structure and winding layout of 8-pole 9-slot PM motors ... Drives and Permanent Magnet Brushless DC Motors Due to the rapid development of computer technologies and microelectronics, the demand for higher processing speed, larger memory size and data...

Ngày tải lên: 15/09/2015, 22:03

... light weight and large continuous and peak torques are required Permanent magnet ac motors combine some of the desirable advantages of conventional induction and synchronous motors and deserve ... my sincere gratitude and appreciation to my supervisors Dr M A Jabbar and Dr Ashwin M Khambadkone for their help and advice Their invaluable and insightful guidance, support and encouragement inspired ... commutation in DC motors This explains why motors with squarewave excitation are called brushless DC motors (BLDC) These two kinds of permanent magnet motors are different in performance and control...

Ngày tải lên: 15/09/2015, 22:06

... spikiness of the vibration signal in the motors slight damage stage However, when the motors degradation level increases, vibration signals become random, and kurtosis and crest factor lack the ability ... vibration data features and studying and comparing related algorithm, and targeting at a robust and highly accurate fault classification In addition to fault detection on induction motors, the platform ... automatic detection and high accuracy and proposes the future work by development of a more powerful SVM and more efficient Zoom-FFT into the system for more types of induction motors and electromechanical...

Ngày tải lên: 30/09/2015, 13:41

... (2.3) Vq = RIq + dλd + ωλd dt (2.4) where Vd and Vq are the d- and q-axis voltages Id and Iq are the d- and q-axis currents λd and λq are the d- and q-axis flux linkages R is the armature resistance ... Combination of RSM and non-linear modelling of the IPSM 106 4.9 Comparison of λd (β) and λq (β) observed and predicted 110 4.10 Comparison of λd (β) and λq (β) observed and predicted ... introduced me to many aspects of their cultures and countries And of course I would like to thank Mr Woo and Mr Chandra who are always so kind and helpful They make the laboratory a nice place...

Ngày tải lên: 04/10/2015, 15:45

... codes and standards design, construction, and testing of are transcending national barriers in an MOTORS IS large fabricated frame motors selected attempt to synchronize, without sacrifor zone and ... Orr, and other colleagues for reviewing this article and proother two motors have an improved manifold system and viding their valuable input an internal enclosure design The first two motors ... WWW.IEEE.ORG/IAS Conclusions The design, construction, and application requirements for purged and pressurized motors are very similar in both NEC and IEC standards other than a few differences discussed...

Ngày tải lên: 26/11/2015, 09:41

... Repair and Rewinding of Electric Motors for the Petroleum and Chemical Industry, IEEE Std 1068-1990 [2] Standard for the Repair and Rewinding of AC Electric Motors in the Petroleum, Chemical and ... [7] Standard Test Procedure for Polyphase Induction Motors and Generators, IEEE Std 112-2004 [8] Form-Wound Squirrel-Cage Induction Motors 500 Horsepower and Larger, 4th ed., ANSI/API Standard ... location and position of critical electrical and mechanical components, and the presence, arrangement, and condition of accessories, such as filters, surge capacitors, lightning arrestors, and space...

Ngày tải lên: 26/11/2015, 09:41

... speed in the coasting period KT and Ke stands for the torque constant and Back-EMF constant respectively In this method, the motor is first driven to its base speed and then shut down the power ... electromagnetic (EM) torque produced by the motor, ia, ib and ic are the currents in the windings of A, B and C phase respectively, and hm is the mth harmonic component Similarly, the Back-EMF ... 7θ + π ⎟ + "⎥ ⎠ ⎠ ⎠ ⎝ ⎝ ⎣ ⎝ ⎦ where, ea, eb and ec are the Back-EMF in the windings of A, B and C phase respectively, n is the motor speed in rpm, and hm is the mth component related to the mth...

Ngày tải lên: 26/11/2015, 12:54