errata for electric machinery
English for industrial machinery and equipment(Tiếng anh chuyên ngành máy móc và thiết bị
... only used for the exhaust system? 4. How many basic types of filter are used? 5. Which type of filter is used mainly for the lubrication and fuel-injection systems? TEXT: FILTERS FOR DIESEL ... SYSTEMS The need for filters in systems 1. The most common cause of engine trouble is contaminants in the system; therefore, the most sensible way to maintain and preserve a high-performance hydraulic ... involves the transformation of mechanical energy from one form to another; hence, 100 percent efficiency is theoretically possible. On the other hand, all present-day methods for the large-scale...
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Tài liệu Electric Machinery Fundamentals docx
... this transformer. (b) Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. (c) Assume that the primary voltage of this transformer is ... the primary side of the transformer. (a) Find the equivalent circuit of this transformer referred to the low-voltage side of the transformer. (b) Find the transformer’s voltage regulation at ... WINDINGS 288 APPENDIX C: SALIENT POLE THEORY OF SYNCHRONOUS MACHINES 295 APPENDIX D: ERRATA FOR ELECTRIC MACHINERY FUNDAMENTALS 4/E 301 ...
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Research on field weakening based on reactive power with BLDC motor for electric vehicle application
... withBLDC Motor for Electric Vehicle Application∗Jinsong KangDepartment of Electrical Engineering,TongJi University,Shanghai,P.R.C.,Email:kjs@mail.tongji.edu.cnDepartment of Electrical and ... based on reactive power with BLDC for Electric Vehicle Application.Index Terms— BLDC motor; Electric vehicle; field-weakening; reactive power;I. INTRODUCTIONThe electric vehicle(EV) is the cleanenergy ... Types for Electric Vehicle Application. Proc. of the 12th International Electric 440 Fig. 2. Chart of field-weakening vector control of BLDC motor.The instantaneous value of three-phase electric...
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Chapter 15 introduction to the design of electric machinery
... INTRODUCTION TO THE DESIGN OF ELECTRIC MACHINERY In the following subsections, we will establish expression for each term in (15.6-5), and then use these to establish an expression for the radial flux density ... by John Wiley & Sons, Inc.INTRODUCTION TO THE DESIGN OF ELECTRIC MACHINERY 15616 INTRODUCTION TO THE DESIGN OF ELECTRIC MACHINERY however, no design is better than any of the others in ... DESIGN OF ELECTRIC MACHINERY REFERENCES[1] S.D. Sudhoff, J. Cale, B. Cassimere, and M. Swinney, “Genetic Algorithm Based Design of a Permanent Magnet Synchronous Machine,” 2005 International Electric...
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electric machinery
... discussion of electric machinery. Practically all transformers and electric machinery use ferro-magnetic material for shaping and directing the magnetic fields which act as the medium for transfer- ... quadrant of hysteresis loop for Alnico 5; (b) second quadrant of hysteresis loop for M-5 electrical steel; (c) hysteresis loop for M-5 electrical steel expanded for small B. (Armco Inc.) 14 ... Electric Machinery continues to be to build a strong foundation in the basic principles of electromechanics and electric machinery. Through all of its editions, the emphasis of Electric Machinery...
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Advanced network solutions for electric power applications
... prioritization, and layer 2 addressing services for user data.•Created to allow interoperability between various vendors' SCADA components for the electrical grid•Developed by GE-Harris Canada ... - Negative sequence voltage50 - Instantaneous overcurrent (N for neutral, G for ground current)51 - Inverse Time overcurrent (N for neutral, G from ground current)59 - Over Voltage (59LL ... in Substations• Need channel banks for voice (phones) and data• Need mux to connect to a radio• Dry contact for house keeping alarms• Data Bridge for the subrate data• Some customers...
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M4 Macros for Electric Circuit Diagrams in LATEX Document
... CorelDrawR and Adobe IllustratorR for further processing. With raw Postscript output, the user is responsible for ensuring that the correctfonts are provided and for formatting labels.Many thanks ... gpic.m4 for historical compatibility. The processor optionsmust be chosen correspondly, gpic -t for gpic.m4 and, most often, dpic -p or dpic -gwhen dpic is employed. For example, the pipeline for ... macro internal coordinates adjusted for L|Rtrxy init(origin, unit size, sign )cct initialize trxytransformer(linespec,L|R,np,[A][W|L],ns)cct 2-winding transformer: left or right, np primary...
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robotics designing the mechanisms for automated machinery - sandier
... between the arms is large, the deformations become significant; for example, for a distance of 1.5-2 m, a force of 8 kg causes a linear deformation of50-60 mm and angular ... Publisher, p. 910,1973.2. "A Glossary of Terms for Robotics," prepared for Air Force Materials Laboratory,Wright-Patterson Air Force Base, Ohio. National Bureau of Standards, ... return on the expenses.3. For bang-bang robots, but not for flexible manufacturing systems, the condi-tion T > 7\ must be met.Thus, for example, for the production of paper...
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Electric Machinery Fundamentals Power & Energy_2 potx
... higher percentage of the full-load current for the 50 Hz case than for the 60 Hz case. This is true because the peak flux is higher for the 50 Hz waveform, driving the core further into saturation. ... transformer. (a) Find the equivalent circuit of this transformer referred to the high-voltage side. (b) Find the per-unit equivalent circuit of this transformer. (c) Assume that this transformer ... this transformer. (b) Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. (c) Assume that the primary voltage of this transformer is...
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Electric Machinery Fundamentals Power & Energy_3 docx
... power rating of the two transformers, implying that the apparent power rating of each transformer must be 231 kVA. The ratings for each transformer in the bank for each connection are given ... step-down autotransformer. (c) What is the kilovoltampere rating of this transformer when it is used in the autotransformer connection? (d) Answer the questions in (a) for the autotransformer connection. ... questions of Problem 2-15 for this transformer. SOLUTION (a) For this configuration, the common winding must be the larger of the two windings, and SE4CNN= . The transformer connection is...
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Electric Machinery Fundamentals Power & Energy_4 pptx
... half-wave % rectifier waveform = zeros(1,128); for ii = 1:128 waveform(ii) = half wave3(ii*pi/64); end % Now calculate the ripple factor r = ripple(waveform); % Print out the result ... The forced response is the steady-state solution to the equation 1sinMCCdVvv tdt RC RCω+= It must have a form similar to the forcing function, so the solution will be of the form ... three-phase full-wave % rectifier waveform = zeros(1,128); for ii = 1:128 waveform(ii) = fullwave3(ii*pi/64); end % Now calculate the ripple factor r = ripple(waveform); % Print out the result...
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Electric Machinery Fundamentals Power & Energy_5 docx
... The forced response is the steady-state solution to the equation 1sinMCCdVvv tdt RC RCω+= It must have a form similar to the forcing function, so the solution will be of the form ... loop for the conditions in (b). (d) Calculate the electric power being generated by the loop for the conditions in (b). (e) Calculate the mechanical power being consumed by the loop for the ... resulting equation for vC(t). 120ii+= (since the PNPN diode is an open circuit at this time) 103 Chapter 4: AC Machinery Fundamentals 4-1. The simple loop is rotating in a uniform magnetic...
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Electric Machinery Fundamentals Power & Energy_6 doc
... display a capability curve for a % synchronous generator. % Calculate the waveforms for times from 0 to 1/30 s Q = -4810; DE = 5567; S = 1000; % Get points for stator current limit theta ... nl2 sysPPs f f=− The power curve’s slope for generator 1 is 1nl fl0.1 MW0.1 MW/Hz60.5 Hz 59.5 HzPPsff== =−− The power curve’s slope for generator 1 is 2nl fl0.075 MW0.150 ... provide a separate 60 Hz power system for lighting? SOLUTION (a) The equation relating the speed of magnetic field rotation to the number of poles and electrical frequency is 120 emfnP=...
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Electric Machinery Fundamentals Power & Energy_8 ppt
... sin 3 3811 V 931 A sin 20.2 3.68 MVARAQVIφθ== °= Therefore, the field current limit occurs before the stator current limit for these conditions, and the maximum reactive power that the ... sinAEδ will be constant as AE changes. Therefore, ()111212603 Vsin sin sin sin 19.5 21.8543 VAAEEδδ−− ==−°=−° Therefore, 440 0 V 543 21.870.5 17.7 A3.0AASjX ... 2450 V / 3 = 1415 V. Therefore, the new torque angle δ will be ()1112121376 Vsin sin sin sin 25.3 24.61415 VAAEEδδ−− == −°=−° Therefore, the new armature current...
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