Results 261 to 270 of about 20,648 (304)

A high-capacity high-voltage three-cycle oil circuit breaker

Electrical Engineering, 1945
POWER-system designers and operating engineers quite properly are constantly endeavoring to improve the quality of their services. Increases in connected capacity inevitably accentuate the demand for reducing both the frequency and the duration of interruptions in the flow of power. This is particularly true in the case of high-voltage lines which form
H. L. Byrd, E. B. Rietz
openaire   +1 more source

Modelling and simulation of nozzle ablation in high-voltage circuit-breakers

Journal of Physics D: Applied Physics, 2000
In the present paper, a new approach to modelling the ablation phenomenon using computational fluid dynamics (CFD) tools coupled with a physical radiation model is proposed, implemented and validated for application in circuit-breaker arc studies. The present work shows that the principal characteristics of ablation-dominated arcs can be simulated ...
D Godin, J Y Trépanier, M Reggio, X D Zhang, R Camarero   +4 more
openaire   +1 more source

A New Artificial Line for Testing High-Voltage Circuit Breakers

IEEE Power Engineering Review, 1983
In a high-power laboratory, artificial lines are used for short-line fault testing on high-voltage circuit breakers. Over the years, several different configurations of artificial lines have been designed and used in testing laboratories. This article describes an artificial line for testing circuit breakers with current ratings up to 100 kArms.
W.a. Der Linden, L. Der Sluis
openaire   +1 more source

High-voltage oil circuit breakers for rapid reclosing duty

Electrical Engineering, 1944
Experience has shown that high-speed reclosing of circuit breakers on high-voltage transmission lines is of considerable value in maintaining system stability and continuity of service. This paper describes a new line of outdoor oil circuit breakers and the special design features which make them suitable for 20- and 35-cycle reclosing duty at voltages
A. W. Hill, W. M. Leeds
openaire   +1 more source

Computer aided design of synthetic test circuits for high voltage circuit-breakers

IEEE Transactions on Power Delivery, 1989
Developments in electrical power transmission systems require the use of circuit-breakers with increasing breaking capacity. To test these equipments, direct testing is no longer feasible. This means that synthetic tests are necessary. These tests require circuits with a response specified by ANSI, IEC, ..., standards.
W. P. Legros, A. M. Genon, M. M. Morant, P. G. Scarpa, R. Planche, C. Guilloux   +5 more
openaire   +1 more source

Fault Analysis of 220kV High Voltage Circuit Breaker

2019 6th International Conference on Information Science and Control Engineering (ICISCE), 2019
As the switch and protection equipment of power system, the reliable work of high voltage circuit breaker is of great significance to the safe operation of the whole power system. Mechanical fault is still the main fault of high voltage circuit breaker.
Lin Yan, Wei Wang
openaire   +1 more source

Climatic Investigation of a Drive for High Voltage Circuit-Breakers

2009 Asia-Pacific Power and Energy Engineering Conference, 2009
After a short introduction to the technique of high voltage circuit-breakers, their most popular drives and the ways to test them are presented. Afterwards the investigated test drive is introduced, as well as the design and realisation of the experiment.
Matthias Schmidt, Hubertus Murrenhoff
openaire   +1 more source

Switching of Extra-High-Voltage Circuits IV-Compound Circuit Test Facility for High-Voltage Circuit Breakers

IEEE Transactions on Power Apparatus and Systems, 1964
A compound circuit is described for development and acceptance testing of circuit-breaker modules and circuit breakers up to 50,000 equivalent 3-phase module mva (megavoltamperes). The paper discusses high-current-source voltage requirements, synchronization of high-voltage-source application with final current zero, and high-voltage-source impedance ...
T. W. Liao, H. N. Schneider, W. F. Skeats, C. H. Titus   +3 more
openaire   +1 more source

High-Voltage SF6 Circuit Breaker Maintenance

Nowadays, the need for uninterrupted power supply is greater than ever. One of the most effective ways to ensure an uninterrupted supply of electricity is the correct selection of the method and interval of maintenance of elements in a high-voltage substation.
Luka Soldo, Goran Knežević, Mario Zovko   +2 more
openaire   +1 more source

High-voltage oil circuit breakers for transmission networks

Journal of the A.I.E.E., 1927
Roy Wilkins, E. A. Crellin
openaire   +1 more source