Analytical investigation on OPGW strands melting due to DC arc discharge simulating lightning strike

Iwata, Mikimasa; Ohtaka, Toshiya; Kuzuma, Yasukuni; Goda, Yutaka

doi:10.1109/iclp.2012.6344238

Cited by 4 publications

(1 citation statement)

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“…La idea es la obtención de un criterio único de nivel de daño aceptable que se podría aplicar a ambos tipos de corriente, directa o alterna. Efectivamente, se espera que la elección de la polaridad positiva o negativa muestre diferentes N. N. C. Corona, F. Trillaud, and F. R. P. Segura Direct Current Lightning Tests on Optical Ground Wires L resultados en las pruebas, como se señala en [8]. También se analiza en el arreglo de la prueba de AP el impacto de ambas polaridades del arco sobre la integridad física del CGFO [9].…”

Section: Introduccionunclassified

Direct current lightning tests on Optical Ground Wires

Corona

Trillaud

Segura³

2015

IEEE Latin Am. Trans.

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In the last 19 years, the Mexican Federal Electricity Commission (CFE), proprietary of the transmission lines in all the country, has proceeded to replace its conventional overhead earth wires by Optical Ground Wires (OPGW) which is expected to lead to a better incentive. Indeed, those wires include in addition to the traditional protection aspect against atmospheric discharges, the ability to remotely control and operate the grid as well as passing telecommunications. The OPGW's are designed based on the electrical and mechanical specifications required by the end user to fit a given application. Nevertheless, the position of the wire at the top of the transmission towers is to protect the power phases below against lightnings. Therefore, the designer should guaranty its physical integrity as well as its additional functionalities under any atmospheric conditions which can be realized through direct current lightning tests as defined by the national specification given in CFE E000-21-2011 and the international standard IEC 60794-1-2. In addition, it is necessary to define the polarity applied during the tests in order to obtain a representative level of damages found in the field. Implementations of the this specification and the international standard has been carried out and various tests have been conducted on OPGW's for the Mexican utility grid. The results have been compared to actual damages found in the field.

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Section: Introduccionunclassified