600万彩票

特高壓交流開關技術取得突破

發布日期: 2017-06-19 信息來源: 陰 少華

        日前,錫盟—泰州±800千伏特高壓直流工程泰州換流站交流場建成投運。1100千伏交流濾波器組斷路器一次帶電成功,性能優異、運行可靠,實現重大技術突破,是我國高壓開關領域取得的又一重要創新成果。

  錫盟—泰州工程是世界上首個分層接入500千伏及1000千伏交流電網的特高壓直流工程,輸送容量高達1000萬千瓦,需大量使用特高壓交流斷路器用于濾波器組投切,容性電流開斷要求苛刻,恢復電壓高達2900千伏,特別是要承受每年近千次的頻繁投切操作考驗,對電壽命要求極高,國內外沒有先例。

公司對此高度重視,組織中國電力科學研究院、西安西電高壓開關有限責任公司、河南平高電氣股份有限公司、西安高壓電器研究院有限責任公司等國內科研、設計、制造和試驗單位聯合攻關,確定了敞開式4斷口串聯的技術方案,解決了高電氣壽命滅弧室研制、機械操作穩定性保障、新型絕緣材料開發、新型試驗與檢測技術開發等關鍵技術難題。去年7月,西開有限率先完成首臺樣機制造,通過了全面嚴格的試驗驗證,機械操作壽命超過10000次,可無檢修可靠投切3000~5000次,滿足安全可靠運行需要。樣機大量采用新結構、新材料、新工藝和新方法,具有完全自主知識產權。

  1100千伏交流濾波器組斷路器的成功研制,使得特高壓直流工程與特高壓交流電網的直接互聯成為可能。該設備性能指標優異、安全可靠性高、施工運行方便、制造成本低,可在確保安全性的基礎上進一步提高特高壓輸電的經濟性,具有廣闊的應用前景。

 

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