Handbook of Small Electric Motors MAZ Part 2 docx

... 3.58–3.61 in BLDC motors, 5.19–5 .20 characteristics of, 1.43–1. 52, 2. 1 2. 4, 2. 80 2. 163 and core loss, 2. 46 2. 50 end-frame, 3.4 housing, 3.10–3.11 insulation and, 2. 163 2. 173 lamination steels, 2. 4 2. 46 lead ... 4.117–4.119, 4. 122 –4. 126 and mmf in PMDC motors, 4 .27 –4. 32 and mmf in universal ac motors, 4. 122 –4. 126 in permanent-magnet versus induc- tion motors...

Ngày tải lên: 11/08/2014, 07:23

... functions of 1 .25 1 .28 true lengths of 3.14 Linkages 8 .21 3 applications 8 .22 2 8 .22 8 basic 8 .21 6 crank 8 .21 7 four-bar 8 .21 3 8 .21 5 space 8.183 8 .21 2 toggle-joint ... nonconcurrent 2. 1 2. 3 2. 10 noncoplanar 2. 1 2. 3 2. 5 3.18 parallel 2. 8 resolution of 2. 3 in solenoids 6 .28...

Ngày tải lên: 11/08/2014, 07:23

... area of triangle TR1 is A TR1 = (4.134) The area of the slot SEG2 which is in TR1 is A SEG2 = (4.135) R 2 as θ as (0.017453) ᎏᎏ 2 R 2 as ᎏᎏ 2 tan θ TR1 R as ᎏ tan θ TR1 θ tp ᎏ 2 R 2 a θ tpr ᎏ 2 W ast ᎏ 2R a π ᎏ 180 360° ᎏ N at 4.50 ... pL ff −pL fa ω r L af1 + pL af2 r a +ω r L aa1 + pL aa2 v f v a L max − L min ᎏᎏ 2 L max + L min ᎏᎏ 2 L max − L min ᎏᎏ 2 L max + L min...

Ngày tải lên: 11/08/2014, 07:23

... University. He has worked in sales of servo electric motors at Moog, Inc., and in sales of specialty motors at Doerr Electric. He is currently the vice president of Oven Systems, Inc. ANDREW E. ... electromagnetic CAE software. EARL F. RICHARDS (Secs. 1.14, 4.1, 6 .2, 6.3, and 8.4 to 8.8) is Professor Emeritus of Electrical Engineering in the School of Engineering, University...

Ngày tải lên: 11/08/2014, 07:23

... Materials / 2. 1 2. 2. Lamination Steel Specifications / 2. 4 2. 3. Lamination Annealing / 2. 6 2. 4. Core Loss / 2. 46 2. 5. Pressed Soft Magnetic Material for Motor Applications / 2. 51 2. 6. Powder ... Metallurgy / 2. 59 2. 7. Magnetic Test Methods / 2. 71 2. 8. Characteristics of Permanent Magnets / 2. 80 2. 9. Insulation / 2. 163 2. 10. Magnet Wire / 2. 176 2. 11. L...

Ngày tải lên: 11/08/2014, 07:23

... 0.194 NdFeB -28 10.80 10.10 28 310 150 7.45 0 .26 9 90 22 2.8 3.65 24 .20 6.63 0.151 NdFeB -28 UH 10.90 10.40 28 310 190 7.45 0 .26 9 80 22 2.8 3.65 21 .51 5.89 0.170 NdFeB- 32 SH 11.60 11.10 32 310 180 7.45 0 .26 9 ... 120 175.1 2. 87 35.95 12. 53 0.080 SmCo 26 HS 10.60 9.80 27 820 380 8.30 0.300 150 21 4.9 3. 52 44.94 12. 76 0.078 SmCo 28 10.70 10.30 28 820 350 8.30 0.300 150...

Ngày tải lên: 11/08/2014, 07:23

... constant K 2 = hysteresis loss constant The two equations used are: P 1 = K 1 f 2 1 + K 2 f 1 W (2. 18) P 2 = K 1 f 2 2 + K 2 f 2 W (2. 19) From Eqs. (2. 11) and (2. 12) , K 1 = (2. 20) K 2 = (2. 21) The ... 1.500 2. 250 0.500 35 1.715 2. 941 0.715 30 2. 000 4.000 1.000 25 2. 400 5.760 1.400 MATERIALS 2. 19 FIGURE 2. 28 Core loss versus frequency for 29 G066 (29 06)....

Ngày tải lên: 11/08/2014, 07:23

... 0.0003 0.0004 +0.0000 +0.0000 0–30 −0.00 02 −0.0003 5 0.00015 0.00 02 +0.0000 +0.0000 0–30 −0.00 02 −0.00 02 7 0.0001 0.00015 +0.0000 +0.0000 0–30 −0.00 02 −0.00 02 9 0.000050 0.000050 +0.0000 +0.0000 ... improvements in flexibility, reliability, and speed. 3.11 BEARING SYSTEMS FOR SMALL ELECTRIC MOTORS* Electric motors are devices that convert electrical energy into magnetic e...

Ngày tải lên: 11/08/2014, 07:23

... — 911 1 2 ——— 122 241 — — 15 1 2 1 2 11 1 ⁄4 —— 18 2 3 2 1 1 2 61 — 21 1 3 1 2 11 3 ⁄4 NP* X — 24 2442NPX81 27 1 4 1 2 12 1 ⁄4 31 1 2 11 1 ⁄8 30 2 5 2 2 1 2 NP X 2 1 1 ⁄4 33 1 5 1 2 12 3 ⁄4 ... 5 1 2 12 3 ⁄4 NP X 1 1 3 ⁄8 3 626 436 2 41 1 2 39 1 6 1 ⁄ 2 13 1 ⁄ 4 NP X 1 1 5 ⁄ 8 42 2 7 2 3 1 2 NP X 2 1 3 ⁄4 45 1 7 1 ⁄ 2 13 3 ⁄ 4 32 1 ⁄ 2 1...

Ngày tải lên: 11/08/2014, 07:23

... +φ S ) ΅· I b ᎏ 2 N b ᎏ 2 I a ᎏ 2 N a ᎏ 2 1 ᎏ 2 ෆ 1 ᎏ 2 ෆ N S ᎏ 2 1 ᎏ 2 1 ᎏ 2 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 1 ᎏ 2 1 ᎏ 2 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 N S ᎏ 2 N S ᎏ 2 N S ᎏ 2 6. 12 CHAPTER ... energized simultaneously? 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 dφ S ᎏ dt dφ S ᎏ dt 1 ᎏ 2 1 ᎏ 2 N S ᎏ 2 1 ᎏ 2 1 ᎏ 2 6.10 CHAPTER SIX...

Ngày tải lên: 11/08/2014, 07:23