Wind Uibration Analysis And Prevention Research Of Transmission Lines In Binhai Area Of Shengli Oil Field

The main types of vibrations to electrical transmission lines include:Aeolian vibration,galloping andwake-induced oscillations.Aeolian is the most common,frequent one and can sustain longest when vibrate.Terein it is the commonest vibration type to endanger the normal function of electrical transmission lines.The occurring of the galloping is related to given areas and special weather conditions. However,once it occurs,it can cause great damage to the safe operation of electrical transmission lines such as causing frequent tripping and outage,wearing,burning and breakage of the conductor,evermore,leading the accident of tower collapse.It can cause great economic loss and social affection.wake-induced oscillations are a special vibration type to bundled conductor lines. With the increase of the transmission volume and to decrease the corona loss and corona interfere;high voltage lines and super high voltage lines both adopt split-phase conductors. It becomes an urgent problem to study the influence of wake-induced oscillations to disruption of bundle transmission line. Hence,the paper is mainly focused on the analysis of the two fundamental wind-induced vibrations to long span electrical transmission lines.and provide the reference for the research and prevention of transmission and distribution lines’dancing in the future.As one of participaters in the task team which mainly prevents the dancing of electrical lines of electrified wire netting in Shengli Oilfield,the author of this paper simplely explains the method of prevention of transmission and distribution lines’ dancing in certain areas.The main point of this paper is initially analyses and prevents the tatally three times of transmission lines’ dancing phenomenons in the author’s working electrified wire netting in winter,this three accidents resulted in great damage of the production and living conditions in oilfield,it caused in tatally outage of6converting station,concluding3110kV lines,835kV lines and446kV oil well lines,they all triped one after another,cast off more than5,0000kW, it made great threaten to the safe operation of electrical transmission lines.Hence,the effective way of prevention of transmission and distribution lines’ dancing becomes a critical point of needed solution.Through systematiclly research of line’s dancing problem,this paper is based on the practical work of electrified wire netting in oilfield,and takes effective provention measures where the line’s dancing happens in electric towe,largely reduces the damage of electrified wire netting in oilfield for this dancing reason.This paper also makes theoretic reseach and practical work on vibrations to electrical transmission lines,but considering the complicated reason of lines’vibrations element,this paper also need improved and need more deeply research in some certain point. Some parameter need observed in long period and the effect of working on these problom need more time to test.