Arrangement for limiting dynamic overvoltages

Details Arrangement for limiting dynamic overvoltages Arrangement for limiting dynamic overvoltages

H - Electricity

02

H

317/6

H02H 1/04 (2006.01)

Patent

CA 1074853

ARRANGEMENT FOR LIMITING DYNAMIC OVERVOITAGES ABSTRACT According to the invention, the arrangement for limit- ing dynamic overvoltages in a long-distance power transmis- sion line for commercial-frequency current, interconnecting a transmitting power system and a receiving power system, includes batteries of static capacitors and switching devices connecting these batteries of static capacitors to the power transmission line the moment relative swinging of the power systems occurs, at points spaced, respectively, from the transmitting power system and from the respecting one by a distance of which wavelenth equals one half of the wavelength of the commercial-fre- quency voltage. The disclosed arrangement enables to limit the dynamic overvoltages without affecting the level of the dynamic stability of the interconnected power systems. - 16 -

247401

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