Handbook of Small Electric Motors MAZ Part 15 potx

... fans Application data Small motors and sump pumps Small motors for gasoline-dispensing pumps Small motors for oil burners Small motors for home laundry equipment Motors and jet pumps Small motors for coolant ... hermetic refrigeration compres- sors Small motors for shaft-mounted fans and blowers Small motors for belted fans and blowers built in frames 56 and smal...

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. ... associate professor in electrical engineering at the University of Maine. He holds PhD and MS degrees from the University of Illinois. He is a senior member of IEEE and an associ...

Ngày tải lên: 11/08/2014, 07:23

... E motors in PMDC motors, 4.45–4.46, 4. 115 in polyphase motors, 6.100 in series dc and ac motors, 4.128–4.130 in single-phase motors, 6.56 in switched-reluctance motors, 5.102 in synchronous motors, ... motors, 4.14 in analysis of PMDC motors, 4.42 in analysis of single-phase motors, 6.13, 6.74 in analysis of three-phase motors, 10.107 Kit encoders, defined, 10.9 Knee...

Ngày tải lên: 11/08/2014, 07:23

... mensuration of 3.2 Parallelopiped 3.18 Partial derivatives 1.4 Particles, velocity of 1.33 Patents 15. 13 design 15. 13 drawing requirements 15. 16 letters 15. 12 ... moments of 2.13 2.16 Inertia of masses, polar moments of 2.13 Institute of Electrical and Electronics Engineers (IEEE) 15. 2 Institute of In...

Ngày tải lên: 11/08/2014, 07:23

... Systems for Small Electric Motors / 3.46 3.12. Sleeve Bearings / 3.72 3.13. Process Control in Commutator Fusing / 3.79 3.14. Armature and Rotor Balancing / 3.87 3 .15. Brush Holders for Small Motors ... Electronically Commutated Motors 5.1 5.1. Brushless Direct-Current (BLDC) Motors / 5.1 5.2. Step Motors / 5.47 5.3. Switched-Reluctance Motors / 5.99 Chapter 6. Alternating-...

Ngày tải lên: 11/08/2014, 07:23

... value of ᏼ 10 = 0.077 µ 0 g, which is slightly smaller than that shown here. ᏼ 10 =µ 0 =µ 0 =µ 0 (1 .152 ) r 10 = (1 .153 ) v 10 =πr 3 10 = 0.1309g 3 (1 .154 ) l 10 = (2r 10 +πr 10 ) = 1.285g (average of ... this steel is 150 lb/in 2 : p == =150 lb/in 2 (1.213) for a single pole, where g is small. This relationship can be converted into the following simple design strategy. If 150 lb...

Ngày tải lên: 11/08/2014, 07:23

... press shop to have a set of dies for each steel 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 σ e = constant based on the quality of the iron, containing an element of resistivity of the material and the material density ∆=thic...

Ngày tải lên: 11/08/2014, 07:23

... improvements in flexibility, reliability, and speed. 3.11 BEARING SYSTEMS FOR SMALL ELECTRIC MOTORS* Electric motors are devices that convert electrical energy into magnetic energy and finally into mechanical ... designs. Producing finished stacks of rotor and stator laminations in the die has many advantages to the manufacturers of electric motors, particularly the eliminatio...

Ngày tải lên: 11/08/2014, 07:23

... only half of the SEG1 section needs to be calculated. For the triangle TR1, at the bottom of the slot, the angle is half of the tooth pitch angle: θ TR1 = (4.131) The length of the base of TR1 is L TR1 = ... circuit, the transient response of the series motor can be calculated. 4.1.3 Permanent-Magnet DC Motors (Shunt PM Field Motors) The general equivalent electrical circuit...

Ngày tải lên: 11/08/2014, 07:23

... in num- ber of turns. For example, an 8-pole design using 10 turn/coil of 22 AWG would have a K ET value of 0.97.A 2-pole design using 60 turn/coil of 22 AWG would have a K ET value of 0.88. The ... step angles of 15 or 7.5°, respectively. ELECTRONICALLY COMMUTATED MOTORS 5.49 FIGURE 5.48 Magnetization pattern of permanent-magnet step-motor rotor. FIGURE 5.49 Cutaway view o...

Ngày tải lên: 11/08/2014, 07:23