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# Electrical Engineers, Proceedings of the Institution of

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Displaying Results 1 - 22 of 22
• ### New topological method for laying out printed circuits

Publication Year: 1973, Page(s):325 - 328
Cited by:  Papers (1)
| | PDF (590 KB)

Topological methods of designing printed and integrated circuits have recently been the subject of much interest. A new algorithm is now presented for the construction of the graph of a circuit. Not only does this algorithm produce simpler graphs than it was possible to produce by the use of earlier methods, but it also retains much of the freedom normally associated with manual routing. Using thi... View full abstract»

• ### Design technique for nonlinear equalisers

Publication Year: 1973, Page(s):329 - 333
| | PDF (597 KB)

A theoretical analysis, using the properties of linear vector spaces, is applied to the design of a nonlinear equaliser. The design minimises the probability of error in the detection of a serial digital signal, subject to the accurate equalisation of the time-invariant channel, when the signal is received in the presence of additive white Gaussian noise with a high signal/noise ratio. The equalis... View full abstract»

• ### IEE Northern Ireland Centre: Chairman's address. Going round in circlesÂ¿a review of Earth-satellite applications

Publication Year: 1973, Page(s):334 - 335
| | PDF (306 KB)

First Page of the Article
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• ### Analysis of hollow elliptical waveguides by polygon approximation

Publication Year: 1973
| PDF (102 KB)
• ### Linear-motor topology

Publication Year: 1973, Page(s):337 - 343
Cited by:  Papers (7)
| | PDF (967 KB)

In rotating electric motors, the working magnetic flux is usually assumed to cross the airgap substantially in radial planes, and, in this respect, the working flux could be said to be 1-dimensionalÂ¿. In transverse-flux machines, 2- or 3-dimensional flux loops are possible, and the number of different shapes of transverse-flux machine which can be built is far greater than when only one dimensio... View full abstract»

• ### Power-system load representation

Publication Year: 1973, Page(s):344 - 348
Cited by:  Papers (21)
| | PDF (507 KB)

The paper concerns the representation of distributed loads of mixed but known composition. A general load model is employed which relates relative changes in active-and reactive-load demand to relative changes in applied voltage and frequency in terms of a set of four characteristic parameters. The object is to identify analytically the resultant characteristic parameters at a principal load busba... View full abstract»

• ### Identification of principal factors causing unbalanced magnetic pull in cage induction motors

Publication Year: 1973, Page(s):349 - 354
Cited by:  Papers (16)
| | PDF (903 KB)

The precise effect of the static eccentricity of the rotor of an induction machine on the magnetic field in the airgap is demonstrated and explained. The relation between the unbalanced pull and the eccentricity of a cage rotor is determined through measurements of the electromagnetic field at the rotor surface, and the significance of the tangential-flux component in the machine airgap is assesse... View full abstract»

• ### Performance and parameters of the electric differential

Publication Year: 1973, Page(s):355 - 358
| | PDF (553 KB)

A complete theoretical statement about the performance of the electrical differential can be expressed in terms of four parameters. The paper describes two simple tests for determining these parameters, and compares predicted results with observed results for three different arrangements: an orthodox cylindrical salient-pole machine in commercial production, a motor with orthodox stator and a spec... View full abstract»

• ### Neville's tooth-ripple wavelength spectra

Publication Year: 1973, Page(s):359 - 361
Cited by:  Papers (2)
| | PDF (284 KB)

Tooth-ripple harmonics in electrical machines are important in the calculation of losses and noise. S.Neville has shown that, by employing wavelength spectraÂ¿, their calculation and presentation may be simplified. The idea is extended and the ranges of the variables are increased. The resulting form of the calculated data is more convenient for use in a computer program. View full abstract»

• ### Regions of transient stability for power systems involving saliency using the Popov criterion

Publication Year: 1973
| PDF (171 KB)
• ### Summation of harmonics with random phase angles

Publication Year: 1973, Page(s):362 - 363
| PDF (298 KB)
• ### Matrix method for the steady-state analysis of invertor-fed induction motors

Publication Year: 1973, Page(s):363 - 364
| PDF (187 KB)
• ### Erratum: Regions of transient stability for power systems involving saliency using the Popov criterion

Publication Year: 1973
| PDF (67 KB)
• ### Erratum: Asynchronous starting of synchronous machines with or without rectifiers in the field circuit

Publication Year: 1973
| PDF (67 KB)
• ### Online optimal control of arc impedance for an electric-arc-furnace model

Publication Year: 1973, Page(s):365 - 370
Cited by:  Papers (1)
| | PDF (690 KB)

The dynamic behaviour of an electrode-position control system for an industrial direct electric-arc furnace is investigated. The electrode-positioning servomechanism is modelled as an electromechanical system with transfer-function relationships and nonlinear valve characteristics defining the hydromechanical system. The electrical-power-transmission-system model is based on single-phase circuit e... View full abstract»

• ### Fast governing of turbogenerators during transients

Publication Year: 1973, Page(s):371 - 378
Cited by:  Papers (2)
| | PDF (808 KB)

A mainly theoretical investigation is made of the effects of fast mechanical torque control on the transient stability of turbogenerators. Two aspects of the problem are considered. First the likely improvement in 1st-swing stability is examined, and a method is described of obtaining the stability boundaries in state space for different controls. Secondly, a time optimal-control strategy for redu... View full abstract»

• ### Stability of linear constant multivariable systems

Publication Year: 1973, Page(s):379 - 384
Cited by:  Papers (1)
| | PDF (735 KB)

Linear multivariable systems are considered for which the elements of the plant and compensation transfer-function matrices are holomorphic functions in the right halfplane. By phrasing the problem in a functional-analytic setting, a stability criterion is developed which is a generalisation of Nyquist's criterion and Rosenbrock's diagonal-dominance stability criterion. The new criterion is applic... View full abstract»

• ### Output-prediction equation with minimum-time control of linear multivariable systems

Publication Year: 1973, Page(s):385 - 389
Cited by:  Papers (2)
| | PDF (537 KB)

The paper develops an equation for the prediction of the output of a linear time-invariant multivariable system that is based on process past inputs and outputs. To demonstrate that the output-prediction equation is a realistic model of process dynamics, a derivation is included to establish the inputs necessary to generate a minimum-time deadbeat response. A computer simulation study illustrates ... View full abstract»

• ### Electric strength of a gas subjected to acceleration or retardation

Publication Year: 1973, Page(s):390 - 393
| | PDF (454 KB)

An enclosed volume incorporating electrically stressed parallel plates subjected to mechanical acceleration or deceleration is considered. At atmospheric pressure, the electric strength of the gas is lowered by acceleration, but the reduction in strength is lowest when the acceleration is across the electric-field direction. Near the Paschen minimum, it is possible to increase the strength, and th... View full abstract»

• ### Model for corona modes in point-to-plane device with coated electrodes

Publication Year: 1973, Page(s):394 - 399
| | PDF (961 KB)

A corona device with point-to-plane electrode geometry is used to simulate electrical operating conditions in industrial electrostatic precipitators. The particular aspect investigated is the effect of electrode coating by precipitated particulates of high resistivity, and as simulated by layers of porous insulating materials. The typical measured d.c.characteristics and square-wave response of th... View full abstract»

• ### IEE Western Centre: Chairman's address. Unusual electrical equipment for warships

Publication Year: 1973, Page(s):399 - 400
| | PDF (390 KB)

First Page of the Article
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• ### Computer program. Method of calculating the electromagnetic field and power losses in ferromagnetic materials, taking into account hysteresis

Publication Year: 1973
| | PDF (201 KB)

First Page of the Article
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## Aims & Scope

The Proceedings of the Institution of Electrical Engineers was published by the IET between 1963 and 1979.

Full Aims & Scope