0
  1. Trang chủ >
  2. Kỹ Thuật - Công Nghệ >
  3. Kĩ thuật Viễn thông >

Handbook of Small Electric Motors MAZ Part 9 doc

Handbook of Small Electric Motors MAZ Part 9 doc

Handbook of Small Electric Motors MAZ Part 9 doc

... improvementsin flexibility, reliability, and speed.3.11 BEARING SYSTEMS FOR SMALL ELECTRIC MOTORS* Electric motors are devices that convert electrical energy into magnetic energy andfinally into mechanical ... designs.Producing finished stacks of rotor and stator laminations in the die has manyadvantages to the manufacturers of electric motors, particularly the elimination of downstream manual or mechanical ... impossible to achieve the slot fillsand production rates of equivalent concentric windings. Almost all of the lap-type motors, probably 90 to 95 percent, are hand wound.This section therefore deals...
  • 147
  • 331
  • 0
Handbook of Small Electric Motors MAZ Part 2 docx

Handbook of Small Electric Motors MAZ Part 2 docx

... assemblies, 9. 42 9. 43computerized, 9. 43 9. 47dc motors, 9. 9 9. 15fatigue and lubrication, 9. 36 9. 41resonance, 9. 27 9. 36spectral analysis, 9. 15 9. 27speed-torque curve, 9. 1 9. 5thermal analysis, 9. 8INDEX I .9 IEEE:on brush ... 2.51nMagnetizers:capacitive-discharge, 2 .93 –2 .97 ,3.138–3.147fixtures for, 2 .97 –2 .99 , 3.133–3.137overview, 2 .91 –2 .93 , 3.124–3.130safety factors, 2 .99 –2.100, 3.141,3.146–3.147types of, 2 .93 –2 .97 , 3.130–3.133Magnetizing ... 2.74–2.80automation of, 9. 43 9. 47bond strength, 3.114commutator fuse, 3.80–3.82dc motor testing, 9. 9 9. 15direct-current tests, 2.71–2.74fatigue and lubrication tests, 9. 36 9. 41magnetizer, 3.1 29 3.130 of motors...
  • 28
  • 324
  • 0
Handbook of Small Electric Motors MAZ Part 3 docx

Handbook of Small Electric Motors MAZ Part 3 docx

... airflow in 9. 3 compressed airflow in 9. 4 hydraulic discharge in pressurized 9. 9 oil flow in 9. 6 standard dimensions 4. 49 types of materials used for 9. 9 Pitch ... equivalents 9. 16 fan requirements for enclosed equipment 9. 18 liquid temperatures and 9. 15 properties of common liquids 9. 17 thermal capacity 9. 14 transmission of 9. 13 ... Newton's First Law of 2. 39 Newton's Second Law of 2.22 2. 39 Newton's Third Law of 2. 39 rectilinear 1.36 2. 19 rotary 2.21 Motors ac 6.44 ...
  • 37
  • 299
  • 0
Handbook of Small Electric Motors MAZ Part 6 doc

Handbook of Small Electric Motors MAZ Part 6 doc

... slightly smaller than that shown here.ᏼ 9 =µ0=µ0(1.145)g < r 9 < g + h (1.146)l 9 = r 9 (1.147)dv 9 = 4πr2 9 dr 9 (1.148)dᏼ 9 =µ0=µ02 (1.1 49)9 =µ0͵g + hgdr 9 (1.150)ᏼ 9 = ... pathv10ᎏl2101ᎏ24ᎏ31ᎏ4gᎏ2v10ᎏl210l10ᎏl10a10ᎏl10a10ᎏl102ᎏππr2 9 dr 9 ᎏπ2r2 9 dv 9 ᎏl2 9 1ᎏ8πᎏ2v 9 ᎏl2 9 l 9 ᎏl 9 a 9 ᎏl 9 BASIC MAGNETICS 1.27length and the mean path area, resulting in a permeance with a value of 9 = 0.25µ0h, ... 3.25 1.05 450 300 4 .99 0.180 2 8.4 0.14 0.36 2.63 0.380Ceramic 5 3 .95 2.45 3.50 450 300 4 .99 0.180 3 27 .9 0.46 0.54 1.18 0.845Ceramic 8 3 .90 3.25 3.50 450 300 4 .99 0.180 4 27 .9 0.46 0.72 1.58...
  • 96
  • 227
  • 0
Handbook of Small Electric Motors MAZ Part 10 docx

Handbook of Small Electric Motors MAZ Part 10 docx

... cos θ+0.467 cos 3θ+1.41 cos 5θ+0 .92 4 cos 7θ− 0.028 cos 9 −0.02 cos 11θ+0.523 cos 13θ+0.0 094 cos 15θ+иии (4 .9) Of course, changing the PM pole arc or magnitudes of the armature and PMmmfs will ... cos θ+0.467 cos 3θ+1.41 cos 5θ+0 .92 4 cos 7θ− 0.028 cos 9 −0.02 cos 11θ+0.523 cos 13θ+0.0 094 cos 15θ+иии (4 .9) Of course, changing the pole arc or magnitudes of the armature and field mmfswill ... performance of shunt- and compound-connected dc motors. Finally, Secs. 4.8 and 4 .9 discuss dc motor windings and automatic armaturewinding.4.1 THEORY OF DC MOTORS* 4.1.1 DC Series Motors A series...
  • 96
  • 291
  • 0
Handbook of Small Electric Motors MAZ Part 12 doc

Handbook of Small Electric Motors MAZ Part 12 doc

... 0 .96 0 0.8444 0 .90 6 0 .95 8 0.8375 0 .90 4 0 .95 7 0.8336 0 .90 3 0 .95 6 0.831∞ 0 .90 0 0 .95 5 8.27011⁄20 .91 1 0 .96 0 0.844All other fractional 0 .90 0 0 .95 5 0.827slot windingsTABLE 5 .9 Summary of ... 0 .92 4 0 .92 412 2 Fractional5⁄8 1-6 30 1 1.000 0 .96 6 0 .96 6 9 8 Half-pitch 11⁄8 1-2 40 1 1.000 0 .98 5 0 .98 524 4 Integral 1 1-7 15 2 0 .96 6 1.000 0 .96 6If one uses a 12-slot stator winding, there ... Integral 1 1-7 30 2 0 .96 6 1.000 0 .96 612 4 Integral 1 1-4 30 1 1.000 1.000 1.00012 2 Variable 1 (average) 1-8/1-6 30 2 0 .96 6 1.000 0 .96 615 4 Fractional 11⁄4 1-4 24 1 1.000 0 .92 4 0 .92 412 2 Fractional5⁄8...
  • 107
  • 391
  • 0
Handbook of Small Electric Motors MAZ Part 14 doc

Handbook of Small Electric Motors MAZ Part 14 doc

... way.Other PM synchronous motors are essentially PM stepper motors run as PSC motors. The motor shown in Fig. 7. 19 has a stator consisting of two sets of coils withthe teeth offset from each other ... length of air gapLmet= mean end-turn length of coilLs= stator stack lengthlg= effective length of air gapLt1= length of teethLy1= length of yokeMTL = mean turn lengthm = number of ... Half-tooth-pitch offset consisting of two sets of coils with offset teeth.FIGURE 7.21 Rotor with magnetized poles.7.14 CHAPTER SEVENFIGURE 7.18 Uneven distribution of magnetic stator poles.FIGURE 7. 19 Permanent-magnet...
  • 24
  • 257
  • 0
Handbook of Small Electric Motors MAZ Part 1 pptx

Handbook of Small Electric Motors MAZ Part 1 pptx

... on the board of directors of SMMA( 199 5–present) and EMERF ( 199 7–present). He is the Company Representative and VotingMember of NEMA ( 199 2–present), EMCWA ( 199 2–present) and NAM ( 199 2–present).WARREN ... engineer in 199 1, hereceived a PhD from the University of Bath, England, in 199 3. He was appointed to the posi-tion of vice president of Vector Fields, Inc., United States, in 199 5. He is a ... University, Princeton,New Jersey, in 198 9. He was an assistant professor of chemistry at Lycoming College, Williamsport, Pennsylvania, from 198 7 to 198 9. He has sevenyears of experience in magnetic materials...
  • 12
  • 330
  • 0
Handbook of Small Electric Motors MAZ Part 5 ppsx

Handbook of Small Electric Motors MAZ Part 5 ppsx

... Electronically Commutated Motors 5.15.1. Brushless Direct-Current (BLDC) Motors / 5.15.2. Step Motors / 5.475.3. Switched-Reluctance Motors / 5 .99 Chapter 6. Alternating-Current Induction Motors 6.16.1. ... Commutator Fusing / 3. 79 3.14. Armature and Rotor Balancing / 3.873.15. Brush Holders for Small Motors / 3 .99 3.16. Varnish Impregnation / 3.1033.17. Adhesives / 3.1 09 3.18. Magnetizers, Magnetizing ... Synchronous Motors / 7.17.2. Hysteresis Synchronous Motors / 7.57.3. Permanent-Magnet Synchronous Motors / 7 .9 7.4. Performance Calculation and Analysis / 7.16Chapter 8. Application of Motors 8.18.1....
  • 3
  • 275
  • 0
Handbook of Small Electric Motors MAZ Part 7 ppsx

Handbook of Small Electric Motors MAZ Part 7 ppsx

... press shop to have a set of dies for eachsteel supplier of a given part. This can raise the costs of keeping several steel suppli-ers for one part. Also,the subtleties of producing flat,round ... Hysteresis curves of magnetic material.where σe= constant based on the quality of the iron, containing an element of resistivity of the material and the material density∆=thickness of the laminationsf ... 1.715 2 .94 1 0.71530 2.000 4.000 1.00025 2.400 5.760 1.400MATERIALS 2. 19 FIGURE 2.28 Core loss versus frequency for 29G066 ( 29 06).2.10 CHAPTER TWOFIGURE 2.10 24N208 (2.08 W/lb maximum 24 19) ....
  • 71
  • 244
  • 0

Xem thêm

Từ khóa: hướng dẫn sử dụng microsoft project 2002 trong lập và quản lý dự án part 9 doca history of britain part 9electric motors and drives handbook pdfhandbook of shaft alignment part 13 pdfeuropean conquest and the rights of indigenous peoples part 9 pdfselection testing controls and protection of electric motorsinstallation and maintenance of electric motorsprotection of electric motorsabdominal cavity 9 mesocolons and mesentery of small intestinepart of the spectrum of small vessel disease in the brainelectric motors and drivesebook electric motors and drivesthe handbook of brain theory and neural networkshandbook of couples therapysimulation of small chemicalBáo cáo quy trình mua hàng CT CP Công Nghệ NPVMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPđề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giảiGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngĐịnh tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinThiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíBT Tieng anh 6 UNIT 2Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)chuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtBÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘIQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ