By Topic

Power Apparatus and Systems, IEEE Transactions on

Issue 6 • Date June 1967

Filter Results

Displaying Results 1 - 19 of 19
  • IEEE Transactions on Power Apparatus and Systems - Table of contents

    Page(s): c1
    Save to Project icon | Request Permissions | PDF file iconPDF (762 KB)  
    Freely Available from IEEE
  • IEEE Power Group

    Page(s): c2
    Save to Project icon | Request Permissions | PDF file iconPDF (156 KB)  
    Freely Available from IEEE
  • News

    Page(s): 1a - 4a
    Save to Project icon | Request Permissions | PDF file iconPDF (822 KB)  
    Freely Available from IEEE
  • Insulation Coordination in APS 500-kV Stations

    Page(s): 655 - 665
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2300 KB)  

    This paper presents the results of an insulation coordination study for the 500-kV Fort Martin and Yukon stations of the Allegheny Power System. The station parameters determined 1) lightning arrester rating, 2) transformer, circuit breaker, disconnecting switch, and bus support BILs, 3) minimum electrical clearances, and 4) number and location of lightning arresters. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Calculation of Double Circuit Outage Rate of Transmission Lines

    Page(s): 665 - 678
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4505 KB)  

    A method has been developed to predict the probability of a double circuit outage on double circuit lines. Traveling wave techniques are used to account for nonlinearities such as corona, attenuation, and phase conductor flashover as its time iterative approach enables alteration of design parameters at each time increment. A geometrical model technique, involving comparison of lightning voltages measured on the models with those obtained from linear traveling wave calculations, enables realistic estimation of the value ascribed to tower surge impedance, an important parameter in the calculations. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fault Generated Impulse Noise Voltage in a Transmission Line

    Page(s): 678 - 684
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (5822 KB)  

    A high-frequency noise voltage in a faulty transmission line generated by arcing fault is described. Many artificial arcing fault tests were conducted to clarify the features of this noise voltage, and field investigations were conducted to record the noise voltage generated by actual lightning faults. The noise voltage varies according to the value of fault current, types of fault, and time interval after the occurrence of the fault. A theoretical analysis of the method for calculating this impulse noise voltage is also presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Design and Testing of EHV Shunt Reactors

    Page(s): 684 - 692
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4434 KB)  

    The design and testing of high-voltage shunt reactors is discussed. The advantages of a gapped-core construction employing radial laminated limb sections with a relatively small number of air gaps, resulting in a simple mechanical construction, are described. A comparison is made between testing methods for transformers and reactors, special attention being paid to test power, loss measurement, measuring accuracy, and special tests. A bridge method for loss measurements is described. Among the various dielectric tests discussed, particular mention is made of the induced voltage test and its unrealistic representation of actual service conditions. It is suggested that this test be replaced by one utilizing a lightly damped oscillation produced by an impulse generator. The need for vibration measurements as a check on mechanical behavior is stressed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of Line Insulators Under Rime Ice

    Page(s): 692 - 698
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (6210 KB)  

    Single suspension insulator units of several types as well as multi-unit strings were studied in a large refrigerated chamber. Rime ice of various densities was deposited on these insulators. The increase of leakage currents, the reduction of flashover voltages, and the alteration of voltage distributions along insulator strings caused by the presence of the ice were measured. The effects of various protective coatings on the insulator performance were examined. The process of insulator flashover under rime ice is compared with that under the usual types of industrial and marine pollution at temperatures above freezing point. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Evaluation of Surge Suppression Resistors in High-Voltage Circuit Breakers

    Page(s): 698 - 707
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2116 KB)  

    The switching surge insulation level of steel tower and wood pole transmission lines operating at system voltage levels of 115 through 500 kV are compared with the switching surge magnitudes that can occur on these systems. High-side and low-side switching with and without surge suppression resistors is considered. The results indicate that at 345 kV and above surge suppression resistors should be used, while below 345 kV these resistors cannot, in general, be justified. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimum Design of Electrical Machines

    Page(s): 707 - 711
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1170 KB)  

    A unified method of designing electrical machines is presented, utilizing the capabilities of modern, high-speed digital computers. The objective is to meet all performance requirements at minimum cost. The general approach is described by means of two examples, a program for design of power transformers and a program for design of hydroelectric generators. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimizing the Performance of Synchronous Generators

    Page(s): 712 - 722
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2156 KB)  

    Self-excitation is proved to be a simple, reliable, and theoretically economical method for increasing the range of stable operation in a synchronous generator with particular reference to large turbine generators. When the excitation is realized following some general criteria derived in this paper, much greater stability is achieved than with conventional systems. This liberates the design of the generator itself from the limitations normally imposed by stability considerations. A specific example shows that the excitation method described here theoretically allows for a 26 percent increase in power output for a given size generating unit. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital Computer Analysis of Induction Machines in Dynamic Systems

    Page(s): 722 - 728
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1282 KB)  

    An all-digital simulation of an induction machine and its associated control system is described. The simulation is suitable for analyzing operation either from a constant frequency, constant voltage supply, or analyzing a complete control loop with a variable frequency power source. The computer program which is described calculates both the transient and steady-state performance of the machine from its equivalent circuit constants. The principal element in the program is a differential equation solving algorithm using a predictor-corrector method. This predictor-corrector technique is relatively easy to program and is suitable for use with a medium size digital computer. A discussion of the various steps in the program as well as an example of an application of the program are given. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Differential Principle Applied to the Measurement of Stray Load Losses in Squirrel-Cage Induction Motors

    Page(s): 728 - 733
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1126 KB)  

    The paper demonstrates how the differential principle may be used to measure stray load losses in squirrel-cage induction motors under full-load conditions, while only a fraction of full-load power is drawn from the supply. A full analysis together with the test results for a mechanical differential are included in this paper and, in addition, the results obtained by using an electrical differential are given, showing the close correlation between the measurements obtained from these two types of differential device. The particular advantages of each arrangement are discussed, and it is concluded that the mechanical differential is likely to prove the more suitable for large-scale industrial use. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Versatile Phase-Angle Meter for Power System Analysis

    Page(s): 734 - 750
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4764 KB)  

    The phase-angle meter is an instrument that can be of considerable value to industry. It is simple to use, but there is a problem in understanding its readings. This paper endeavors to impart an understanding of its use and to clarify interpretation of results obtained. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Z Diakoptics - Torn Subdivisions Radially Attached

    Page(s): 751 - 769
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3168 KB)  

    The Piecewise Method of solution, better known as Diakoptics, is a procedure for solving large-scale system problems by tearing or decomposing. The problems to be analyzed seem to grow at a very rapid pace. Neither the increased computer speeds nor the computer core storages seem to keep up with the size and complexity of the problems to be solved. Diakoptics appears to be a good tool with which to supplement the computer, or computers, to solve large-scale system problems. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • AC Resistance and Reactance of Isolated Rectangular Conductors

    Page(s): 770 - 774
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1068 KB)  

    The recently proposed normal mode theory of current flow in straight, long conductors is applied to nonmagnetic, isolated, rectangular bars of various side ratios. Sufficient modal parameters have been computed to permit families of conductor resistance ratio and inductance variation curves to be given. These curves may be used to estimate the alternating current parameters of nearly any rectangular conductor with an accuracy of about 0.5 percent for the resistance, and about one nanohenry per meter for inductance. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Guide for Welding Aluminum in Substations

    Page(s): 775 - 786
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2660 KB)  

    The Working Group on Project 63.2 of the Transmission Substations Subcommittee of the IEEE Substations Committee has prepared a guide for welding aluminum in substations. This paper presents a final report on the work, which covers the many unique properties of aluminum with respect to welding. Recommendations are made relative to the choice of welding methods and techniques, and selection of materials. Evaluations are presented on the chemical and physical properties of materials, on welder qualification and evaluation, safety, and preparation of joints. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Contributors

    Page(s): 787 - 789
    Save to Project icon | Request Permissions | PDF file iconPDF (4516 KB)  
    Freely Available from IEEE
  • Blank Page

    Page(s): 789a
    Save to Project icon | Request Permissions | PDF file iconPDF (14 KB)  
    Freely Available from IEEE

Aims & Scope

This Transactions ceased production in 1985. The current retitled publication is IEEE Transactions on Energy Conversion and IEEE Transactions on Power Delivery, and IEEE Transactions on Power Systems.

Full Aims & Scope