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# IEEE Transactions on Power Delivery

## Filter Results

Displaying Results 1 - 25 of 77
• ### Bibliography of switchgear literature: IEEE committee report

Publication Year: 1990, Page(s):177 - 188
| | PDF (912 KB)

This bibliography of 255 references was prepared by the Recognition and Planning Subcommittee of the IEEE Power Engineering Society Switchgear Committee to be used as a reference for switchgear education. The references generally cover the period of mid-1983 through mid-1988. The last complete switchgear bibliography was published in 1984 covering the period through September of 1983. This referen... View full abstract»

• ### Standard curves for economic application of wood poles and light duty steel poles using a personal computer

Publication Year: 1990, Page(s):493 - 497
| | PDF (292 KB)

A simplified algorithm is presented which models the simultaneous wind and weight span capability for wood and light duty steel poles. The model is based on the mathematical derivation of the significant parameters which influence pole capacity and insulator swing angle considerations and was developed using a personal computer. The advantage is a user friendly, minimum input algorithm, which elim... View full abstract»

• ### EPRI project RP 2592, large scale distribution automation and load control', enters test year

Publication Year: 1990, Page(s):486 - 492
Cited by:  Papers (8)
| | PDF (488 KB)

The Electric Power Research Institute (EPRI) is sponsoring a test of distribution automation. This test aims to demonstrate a system providing a host of automation functions, operating on a scale large enough to provide meaningful projection to utility-wide operation. Beginning in late 1989, the system will be fully operational. During the following year, the system will undergo performance testin... View full abstract»

• ### New method for the analysis of distribution networks

Publication Year: 1990, Page(s):391 - 396
Cited by:  Papers (125)
| | PDF (432 KB)

A new method is presented for the solution of load flow in radially operated distribution networks. The method is based on an electric equivalent and on the elimination of the voltage phase angle in the equations to be solved, which makes it possible to obtain the exact solution working only with voltage magnitudes. In this way, a simple and efficient method for the exact load flow solution for th... View full abstract»

• ### Development and experience of large conductor cable 35 kV joints at the Los Angeles Department of Water and Power

Publication Year: 1990, Page(s):58 - 63
| | PDF (452 KB)

An overview is provided of LADWP's (Los Angeles Department of Water and Power) distribution system, past jointing techniques, the investigation and evaluation of alternative approaches, and the field experience with the joint selected for use. The satisfying of the required test sequences of IEEE 404-1986 and the positive results of further testing showed that the heat-shrinkable joint method prov... View full abstract»

• ### Dispersed generation interconnections via distribution class two-cycle circuit breakers

Publication Year: 1990, Page(s):481 - 485
Cited by:  Papers (2)
| | PDF (396 KB)

Connecting parallel generation to a distribution system may create a situation where, under fault conditions, existing components might be exposed to short-circuit values that would exceed their ratings. A description is given of alternate means of solving this problem. In particular, a unique application of a new two-cycle distribution class circuit breaker is discussed, together with the results... View full abstract»

• ### An integrated load management, distribution automation and distribution SCADA system for Old Dominion Electric Cooperative

Publication Year: 1990, Page(s):384 - 390
Cited by:  Papers (22)
| | PDF (528 KB)

A computer and communications system is presented for controlling the operations of load management, distribution automation, and distribution SCADA for a G&T cooperative, Old Dominion Electric Cooperative, and its 12 member cooperatives. The system is currently being designed and delivered by a team of vendors, which involves an EMS/SCADA system vendor and a load management/distribution autom... View full abstract»

• ### Advantages and disadvantages of embedment to prevent external mechanical damages to submarine cables

Publication Year: 1990, Page(s):54 - 57
Cited by:  Papers (1)
| | PDF (372 KB)

The CIGRE paper Methods to Prevent Mechanical Damage to Submarine Cables' (1986) deals with failures in submarine cable links. However, it does not deal with power transmission availability. Furthermore, it may give the impression that total embedment is recommended. The authors argue that this is much too expensive and might endanger the economic viability of a cable solution. A definition of po... View full abstract»

• ### Measurement of the frequency dependent impedance of major station equipment

Publication Year: 1990, Page(s):474 - 480
Cited by:  Papers (18)
| | PDF (664 KB)

High-voltage direct-current (HVDC) converter stations generate radio frequency (RF) electromagnetic (EM) noise due to valve firing. The noise propagates into the AC and DC switchyards and along their corresponding transmission lines. This noise can affect the performance of adjacent communication, control, and computer equipment, and it can interfere with carrier system operation. Therefore, it is... View full abstract»

• ### Computation of signal propagation from distributed sources on power distribution feeders

Publication Year: 1990, Page(s):358 - 364
Cited by:  Papers (3)
| | PDF (580 KB)

The extension of a computer model developed for the analysis of continuous wave operation of distribution feeders is described. The extension permits computation in an efficient manner of the effects of multiple sources distributed on the feeder. The theory underlying the extension is given, along with applications of this model to the study of the propagation of harmonics and for communication sy... View full abstract»

• ### Distribution transformer BIL reduction feasibility study

Publication Year: 1990, Page(s):509 - 513
| | PDF (472 KB)

A summary is presented of an investigation into the feasibility of reducing basic insulation levels (BILs) for oil-immersed distribution transformers. A projected market make-up of popular kVA and system voltages was determined for the 5-35 kV insulation classes of pole-type and pad-mount distribution transformers. Reduced BIL design cases were used to determine the impact on the transformer's des... View full abstract»

• ### Response of composite insulators to dynamic mechanical loads

Publication Year: 1990, Page(s):379 - 383
Cited by:  Papers (6)
| | PDF (344 KB)

Four types of composite insulator made with the two most commonly used end fitting designs have been subjected to dynamic mechanical loads. It was found that a combination of dynamic flexion and static tension loads had a more severe effect on the insulators than pulsed tension loads, which in turn were more severe than static tension loads. The design of the end fitting has a significant influenc... View full abstract»

• ### The development of underjacket moisture barrier cable as a counter measure against treeing

Publication Year: 1990, Page(s):47 - 53
Cited by:  Papers (5)  |  Patents (1)
| | PDF (612 KB)

Materials have been developed to allow rapid commercialization of underjacket moisture barrier sheathed medium-voltage power cables. Plastic-coated aluminium and copper tapes meet the needs for a radial metallic moisture barrier. These tapes have outstanding initial adhesion to polyethylene, chlorinated polyethylene, or polyvinyl chloride jackets and excellent bond stability during thermal loading... View full abstract»

• ### The world's first use of 500 kV XLPE insulated aluminium sheathed power cables at the Shimogo and Imaichi power stations

Publication Year: 1990, Page(s):26 - 32
Cited by:  Papers (13)
| | PDF (484 KB)

The world's first practical applications of 500 kV XLPE (cross-linked polyethylene) cables took place in 1988 at the Shimogo power station of the Electric Power Development Co. Ltd., and the Imaichi power station of the Tokyo Electric Power Co. Inc.. Research and development work on the cables had been conducted since 1982. Efforts were concentrated on quality control to remove contaminants from t... View full abstract»

• ### Field evaluation of industry's first self-protected, light-triggered thyristor

Publication Year: 1990, Page(s):110 - 116
Cited by:  Papers (2)  |  Patents (1)
| | PDF (616 KB)

A description is given of the industry's first self-protected, light-triggered thyristor to be developed, fabricated, and field-demonstrated. This device is installed on a 13.8 kV, 40 MVAr AC switch using 16 series-connected devices operating in one phase of a static VAr compensator at the Minnesota Power Co.'s Shannon substation. The light-triggered thyristor was designed with internal overvoltag... View full abstract»

• ### A novel electromagnetic field shaper for pipe-type cable systems

Publication Year: 1990, Page(s):1 - 7
Cited by:  Papers (2)
| | PDF (724 KB)

A novel electromagnetic field shaper designed to reduce the electrical losses and increase the current carrying capacity of pipe-type cable systems was conceived in 1983. The salient feature of this field is that, in addition to significantly reducing the eddy current losses in the pipe or cable enclosure, it also reduces the losses in the cables due to their proximity to the metallic enclosure. T... View full abstract»

• ### A practical approach for estimating future outage costs in power distribution networks

Publication Year: 1990, Page(s):311 - 316
Cited by:  Papers (12)
| | PDF (468 KB)

Quantitative reliability analysis is integrated as a part of a distribution network information and design system. The outage rates, outage durations and costs of outages are evaluated using the data included in the network database together with the reliability data for network components and the per unit values for the energy not supplied. Using the reliability calculation program together with ... View full abstract»

• ### An expert system for online security-economic load allocation on distribution systems

Publication Year: 1990, Page(s):467 - 473
Cited by:  Papers (9)
| | PDF (668 KB)

A description is given of the development of a knowledge-based online consultant which assists power-system operators in a distribution SCADA (supervisory control and data acquisition) environment. In particular, the allocation of loads to outgoing feeders during the normal state is performed as a preventive measure for minimizing overloads of apparatus following a fault on a substation. By perfor... View full abstract»

• ### Square Butte HVDC modulation system field tests

Publication Year: 1990, Page(s):351 - 357
Cited by:  Papers (3)
| | PDF (540 KB)

Results are presented of field tests which were part of an EPRI-sponsored project to develop advanced control techniques for the design of HVDC modulation systems. The objectives of the tests were to validate the digital control design models for the rectifier and inverter controllers which were developed from a digital large-scale model of the power system and to assess the dynamic environment in... View full abstract»

• ### Small ion mobility characteristics under the Shiobara HVDC test line

Publication Year: 1990, Page(s):247 - 253
Cited by:  Papers (7)
| | PDF (504 KB)

A summary is presented of the experimental results of small ion mobility characteristics under the Shiobara HVDC (high-voltage direct-current) test line. An aspirator-type ion counter was developed to measure ion densities and ion mobilities simultaneously under a HVDC line where both electric field and ions exist together. Thereafter, ion mobility spectra and mean ion mobilities for positive and ... View full abstract»

• ### Computer aided tools in gas circuit breaker design

Publication Year: 1990, Page(s):163 - 169
Cited by:  Papers (5)
| | PDF (380 KB)

A software tool that allows the numerical investigation of the gas flow in circuit breaker chambers has been devised. A zonal grid methodology, with a corresponding finite-volume flow solver for the Euler equations, has been implemented for the treatment of the intricate geometries of the interrupter. Computational examples to illustrate the validity of the method are presented. Experimental tests... View full abstract»

• ### Long term experience with semiconductive glaze high voltage post insulators

Publication Year: 1990, Page(s):502 - 508
Cited by:  Papers (7)
| | PDF (532 KB)

Insulators using semiconductive glaze have long been known for their superior contamination performance. Early glazes for this type of insulator, however, were not stable, and successful use of semiconductive glazed porcelain insulators was delayed many years until tin-antimony oxide glazes were developed. Service experience of 18 years is now available for line and station post insulators with th... View full abstract»

• ### Natural ageing of EPDM composite insulators

Publication Year: 1990, Page(s):406 - 414
Cited by:  Papers (37)
| | PDF (1708 KB)

Long-rod composite insulators, with weather sheds (sheds) made of ethylene-propylene rubbers (EPDM), were exposed for many years to HVAC (high-voltage alternating-current) and HVDC (high-voltage direct-current) under realistic conditions and natural pollution. The changes of their properties with time and their aging were studied. The results show that the insulator shed material undergoes a slow ... View full abstract»

• ### Analysis of an accelerated trip scheme for faults in the second zone of protection of a transmission line

Publication Year: 1990, Page(s):72 - 78
Cited by:  Papers (8)
| | PDF (464 KB)

An analysis of a scheme of accelerated trips for faults in the second zone of a transmission line distance protection system is given. By the use of the two-port network theory, variations of the sequence currents and voltages are analyzed when the fault occurs on the protected line followed by a trip of the circuit breaker on the other side. The analysis is supported by tests performed on a labor... View full abstract»

• ### Fault analysis and special tests of thyristor for RFX AC/DC converters

Publication Year: 1990, Page(s):372 - 378
Cited by:  Papers (5)
| | PDF (624 KB)

In the RFX nuclear fusion experiment, 20 AC/DC converter units, for a total installed power of over 400 MVA, are used to feed the machine magnets. Due to the special characteristics of the load, and in particular to the expected fault conditions, the converter bridges must withstand a high number (approximately 2000) of severe overloads during the life of the machine; in particular, the thyristors... View full abstract»

## Aims & Scope

Installation and operation of apparatus, equipment, structures, materials and systems for the safe, reliable and economic generation, transmission, distribution, conversion, measurement and control of electric energy.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Wilsun Xu
Ph.D., P.Eng.
Dept. Electrical and Computer Eng.
University of Alberta
(9107 - 116 Street)