This authoritative reference enables the design of virtually every type of inductor. It features a single simple formula for each type of inductor, together with tables containing essential numerical factors. 1946 edition.

Author: Frederick W Grover

Publisher: Courier Corporation

ISBN: 9780486318356

Category: Science

Page: 304

View: 404

This authoritative reference enables the design of virtually every type of inductor. It features a single simple formula for each type of inductor, together with tables containing essential numerical factors. 1946 edition.

By combining the mutual inductances of two or more pairs of solid coils the inductance of any thick coil whatever may be accurately treated . As might be
expected , these valuable formulas are somewhat formidable in appearance ,
and ...

A great many formulæ have been given for calculating the mutual and self - inductance of the various cases of electrical circuits occurring in practice . Some
of these formulæ have subsequently been shown to be wrong , and of those
which ...

( 25 ) 2a These give very accurate values of the inductance for coils as long as
one - half the radius of the circumscribed circle , and may be used for somewhat
longer coils with a very satisfactory degree of accuracy . To calculate the
equivalent ...

Formulas for Computing Capacitance and Inductance Chester Snow Explicit formulas are given for the computation of ( 1 ) the capacitance between
conductors having a great variety of geometrical configurations , ( 2 ) the inductance , both ...

This book deals with the two fundamental subjects of electromagnetism.

Author: Marcelo de Almeida Bueno

Publisher: Nova Publishers

ISBN: 1560729171

Category: Technology & Engineering

Page: 134

View: 850

This book deals with the two fundamental subjects of electromagnetism. It is a useful text for courses in electromagnetism, electrical circuits, mathematical methods of physics, and the history and philosophy of science. It covers how to calculate force between two current carrying circuits, and net force on a part of a closed circuit. The calculation of the mutual inductance between two circuits and self-inductance of a single closed circuit is also described. Experiments explain the main expressions of Ampere and Grassmann. A must to help deepen the knowledge of the mind of any student of science.

For very high frequencies, where the current is confined to a thin layer at the
outer surface of the inner conductor and the inner surface of the outer conductor,
the limiting formula for the inductance of the return circuit is =21 [log* -1 abhenrys
.

Author: Frederick Warren Grover

Publisher: Dover Books on Engineering

ISBN: CORNELL:31924004186122

Category: Science

Page: 286

View: 859

This authoritative compilation of formulas and tables simplifies the design of inductors for electrical engineers. It features a single simple formula for virtually every type of inductor, together with tables from which essential numerical factors may be interpolated. An esteemed reference, it belongs in the library of every electrical engineer. 1946 edition.

For making approximate calculations of the inductance of a coil , Table 2 has
been worked out . This ta ble gives the inductance of coils of diameters ranging
from 4 to 18 cms . in diameter , and from 1 to 34 cms . long . The inductance given
is ...

Additionally, from the results it is concluded that the toroidal-winding machine has the highest inductance and DC resistance values among considered machines. Helical-winding machine has lowest inductance and DC resistance values.

Author:

Publisher:

ISBN: OCLC:1014416929

Category:

Page:

View: 408

TitleAbstract/titlePurpose– The purpose of this paper is to give a simple, fast and universal inductance calculation approach of slotless-winding machines and comparison of inductances of toroidal, concentrated and helical-winding machines, since these winding types are widely used among low-power PM machines.Design/methodology/approach– Harmonic modeling approach is applied to model the magnetic field of the windings in order to calculate the synchronous inductances. The method is based on distinction between electromagnetic properties of different regions in the machine where each region is represented by its own governing equation describing the magnetic field. The governing equations are obtained from Maxwell’s equations by introducing vector potential in order to simplify the calculations.Findings– Results of the inductances of toroidal, concentrated and helical-winding slotless PM machines, which have the same torque and dimensions, obtained by the proposed analytical method are in good agreement with 3D FEM, where the relative difference is smaller than 15 percent. However, the calculation time of the analytical method is significantly less than in 3D FEM: seconds vs hours. Additionally, from the results it is concluded that the toroidal-winding machine has the highest inductance and DC resistance values among considered machines. Helical-winding machine has lowest inductance and DC resistance values. Inductance of concentrated-winding machine is between inductance of helical and toroidal windings; however, DC resistance of the concentrated windings is comparable with resistance toroidal windings.Originality/value– In this paper the inductance calculation based on harmonic modeling approach is extended for toroidal and helical-winding machines which makes the method applicable for most of the slotless machine types.

... solution for the inductance is determined by using equations 23 and 24 to find
the exact values for the components , 171 and 1721 of the inductance , Iz ,
associated with one of the outer conductors . Substituting appropriately in equations 23 ...

A SIMPLIFIED NEUMANN ' S FORMULA FOR CALCULATION OF INDUCTANCE
OF SPIRAL COIL H . L . Chan , K . W . E . Cheng and D . Sutanto The Hong Kong
Polytechnic University , Hong Kong Power Electronics and Variable Speed ...

Author:

Publisher: Inst of Engineering & Technology

ISBN: UCSD:31822028468932

Category: Technology & Engineering

Page: 565

View: 915

This title constitutes the proceedings of the Eighth International Conference on Power Electronics and Variable Speed Drives. There are 99 papers altogether.

Author: Joseph F. McPartlandPublish On: 1998-01-22

Inductance is measured in units of henrys ( H ) and represented by the symbol L .
A circuit is said to have an inductance of ... When connected in parallel , the
equivalent inductance Le is found from the formula 1 / Lε = 1 / L , + 1 / L2 + 1 / L2
+ .

Author: Joseph F. McPartland

Publisher: McGraw-Hill Professional Pub

ISBN: UOM:39015043817207

Category: Technology & Engineering

Page: 464

View: 474

The only book of its kind on the market today, this invaluable handbook gives you every essential calculation used in day-to-day electrical construction work - for wiring ... lighting and appliance branch circuits ... feeders for power and light ... motor circuits ... and transformers. With more than 350 detailed illustrations, this updated handbook will enable anyone involved in the electrical construction industry to determine the most efficient and cost-effective approach to the design, layout, installation, operation, and maintenance of electric circuits, systems, and equipment.

About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work.

Author: Edward B. Rosa

Publisher: Forgotten Books

ISBN: 1333936117

Category: Technology & Engineering

Page: 140

View: 248

Excerpt from Formulae and Tables for the Calculation of Mutual and Self-Inductance A great 'many formula have been given for calculating the mutual and self-inductance of the various cases of electrical circuits occurring in practice. Some of these formula have subsequently been shown to be wrong, and of those which are correct and appli cable to any given case there is usually a choice, because of the greater accuracy or greater convenience of one as compared with the others. For the convenience of those having such calculations to make we have brought together in this paper all the formula with which we are acquainted which are of value in the calculation of mutual and self-inductance, particularly in nonmagnetic circuits where the frequency of the current is low enough to assure sensibly uniform distribution of current. A considerable number of formula which have been shown to be unreliable or which have been replaced by others that are less complicated or more accurate have been omitted, although in most cases we have given references to such omitted formula. Where several formula are applicable to the same case we have pointed out the especial advantage of each and indicated which one is best adapted to precision work. In the second part of the paper we give a large number of exam ples to illustrate and test the formula. Some of these examples are taken from previous papers by the present authors, but many are new. We have given the work in many cases in full to serve as a guide in such calculations in order to make the formula as useful as possible to students and others not familiar with such calcula tions, and also to facilitate the work of checking up the results by anyone going over the subject. We have been impressed with the advantage of this in reading the work of others. In the appendix to the paper are a number of tables that will be found useful in numerical calculations of inductance. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

inductance calculations in the first approximation , boundary conditions for , 108 -
112 inductance calculations in the first approximation , examples of flat bus , 113
- 122 inductance calculations of a singleturn solenoid situated near to a coaxial ...

Author: G. A. Shneerson

Publisher: Nova Science Pub Incorporated

ISBN: UVA:X004145315

Category: Technology & Engineering

Page: 561

View: 901

Generalizes calculations relating to strong pulsed currents and magnetic fields, which are being used increasingly in laboratory research and industry. Discusses electromagnetic field calculation outside conductors under conditions of pronounced skin effect, the diffusion of fields into conductors,

Maddock , A. J. “ Mutual inductance : simplified calculations for concentric
solenoids " W.E. 22.263 ( Aug. 1945 ) 373 . 15. Grover , F. W. ( book ) “ Inductance calculations : Working Formulae and Tables " ( New York , D. Van
Nostrand Co. , Inc.

xo I yo Lamp B Lamp A Unknown phase sequence Vzx = Vez Inductance ܘ ܐ
Fig . 13 Determination of phase sequence with two resistance lamps and an inductance . Calculation Procedure : 1 . Assume per - Unit Values of Lamps and ...

Author: Arthur H. Seidman

Publisher: McGraw-Hill Companies

ISBN: UCAL:B4590335

Category: Technology & Engineering

Page: 6

View: 415

A powerful calculations tool for electric power engineers and technicians; this book offers essential; step-by-step procedures and examples for solving a wide array of electric power problems. --

Author: United States. Dept. of Commerce. Radio DivisionPublish On: 1923

In the design of electrical apparatus it is very desirable that it shall be possible to
calculate the inductance of the various ... collected in convenient form the
available formulas for inductance calculations , added certain new formulas , and
also ...

Author: United States. Dept. of Commerce. Radio Division

Author: United States. National Bureau of StandardsPublish On: 1953

Formulas for Computing Capacitance and Inductance Chester Snow Explicit formulas are given for the computation of ( 1 ) the capacitance between
conductors having a great variety of geometrical configurations , ( 2 ) the inductance , both ...

Author: United States. National Bureau of Standards