Armature Windings of Electric Machines by Horace Field Parshall

By Horace Field Parshall

Show description

Read or Download Armature Windings of Electric Machines PDF

Similar machinery books

Lubricant Additives: Chemistry and Applications (Chemical Industries)

This article info the layout of inexpensive, environmentally pleasant lubricant additive applied sciences and elements for the car, business, production, meals, and aerospace industries. providing ways to increase the functionality and balance of lubricants, shield steel surfaces opposed to put on, and to regulate deposits and contaminants akin to put on particles, sludge, acids, and peroxides, Lubricant ingredients is a helpful addition to libraries utilized by mechanical, lubrication, chemical, car, aerospace, layout, aeronautical, warmth move, and petroleum engineers, tribologists, learn and petroleum chemists, lubricant formulators, and upper-level undergraduate and graduate scholars in those disciplines.

Theory of Parallel Mechanisms

This e-book includes mechanism research and synthesis. In mechanism research, a mobility technique is first systematically awarded. this system, in response to the author's screw concept, proposed in 1997, of which the generality and validity used to be basically proved lately, is a really complicated factor, researched by way of quite a few scientists over the past one hundred fifty years.

Multifunctional materials for tribological applications

An enormous point of engineering surfaces is they have to be multifunctional as designs of computing device elements require more cost-effective, lighter, smarter, longer-wearing, and extra environmentally pleasant surfaces that see purposes which are warmer, speedier, hugely pressurized, and uncovered to different more and more opposed environments.

Operator's guide to general purpose steam turbines: an overview of operating principles, construction, best practices, and troubleshooting

While put in and operated appropriately, basic objective steam generators are trustworthy and have a tendency to be forgotten, i. e. , out of sound and out of mind.  yet, they are often napping giants which could lead to significant complications if ignored.  3 genuine steam turbine bad results that instantly spring to mind are: damage and secondary harm because of an overspeed failure.

Extra info for Armature Windings of Electric Machines

Example text

CHAPTER III. TWO-CIRCUIT, SINGLE-WOUND, MULTIPOLAR RINGS. THE next windings to be considered form a class which, independently of the number of poles, have only two circuits through the armature. the practical advantage that the as great, number These are known as two-circuit windings. of conductors, as hence the space required for insulation 2 is only -^- Such windings possess compared with multiple-circuit windings, 2 is only as great as with the multiple-circuit windings, in consequence of which the diameter of the armature, or the depth of space occupied by the armature conductors, may be less than with the multiple -circuit windings, thereby diminishing the cost of material.

TWO 15 CIRCUIT, SINGLE WINDING. CHA1'. Ill ] TWO-CIRCUIT, SINGLE-WOUND, MULTIPOLAE KINUS, Fig. 15 In is with practice given a winding that has been used in extreme regularity of fact that segments it owing partly to the connections, and still more to the considerable all success, involves the use of twice as Only one as coils. many commutator coil in series is short-circuited at each brush, and the volts per segment are one-half what they would be The number of in the unmodified long-connection winding.

Fig. TWO 1 8 CIRCUIT, SINGLE WINDING. Fig. TWO 1 9 CIRCUIT, SINGLE WINDING. ] TWO-CIRCUIT, SINGLE-WOUND, MULTIPOLAR RINGS. Instead of connecting together in pairs coils lying in fields of opposite polarity, as in Figs. 17 and 18, adjacent and together as shown in Fig. 19, these connected across to coils in the nearest field of like coils may be connected polarity. The number one-half of the of number commutator segments The of coils. is equal to inherent identity of and the "long-connection" winding may be seen by doing away with the leads to the commutator segments, this and substituting leads from the eleven points lettered b, o, d, etc.

Download PDF sample

Rated 4.03 of 5 – based on 45 votes