[新聞] 台電:大潭瞬間停機 核一核二也難救消失
1.媒體來源:
聯合新聞網
2.完整新聞標題:
台電:大潭瞬間停機 核一核二也難救
3.完整新聞內文:
2017-08-17 03:51聯合報 記者高詩琴/台北報導
八一五全台大停電,也引發有關電力不少論戰。有學者專家指出,如果有足夠的備轉容量
,就能夠避免八一五大停電事件。但台電高層昨天表示,大潭電廠是瞬間停機,「瞬間少
了四百廿萬瓩,缺口實在太大」,就算當時有核一、核二兩部停用的機組,也無法立刻升
載補足缺口,還是有可能發生跳電。
台電表示,前天下午四點,全台用電量約三千四百七十萬瓩;台電最大供電能力三千七百
六十萬瓩。大潭電廠六部機組跳機後,台電瞬間少了四百廿萬瓩,等於比用電量還少了約
一百卅萬瓩。換句話說,當大潭電廠六部機組跳機後,備轉容量變成「負值」,電網頻率
也跟著下降,系統才會自動啟動低頻電力卸載機制。
台電主管說,平常要隨時保持「供需平衡」,用電量和供電量維持一致水準,但當用電大
於供電量時,系統就會啟動低頻電力卸載機制,目的是減少用電量以確保電流頻率維持一
定水準。
主管表示,前天大潭電廠跳機後,台電接連啟動第五段及第十一段低頻卸載,一共卸載三
百萬瓩。接著啟動緊急分區限電,以維持供需平衡。前天受到低頻卸載而跳電的用戶共有
一百五十四萬戶,實施緊急分區限電的用戶則有四百卅八萬戶,一共有五百九十二萬戶受
到影響。
台電高層表示,以往電廠機組若發生破管意外,會逐步降載,同時連絡控制中心啟用其他
備用電力;但大潭跳機發生時間太快、很難臨時補足。「備轉容量當然會影響跳電機率,
但若跳機的量太大,有再多備轉容量也沒用。因為機組升載需要時間,如果瞬間缺口太大
,也補不了洞」。
4.完整新聞連結 (或短網址):
https://udn.com/news/story/11419/2647112?from=udn-ch1_breaknews-1-cate1-news
5.備註:
寶傑你怎麼看?
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