Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
機場捷運完成全線送電概述 Overview of the Completion of TIAA MRT System Power Supply
氣體絕緣斷路器(GIS)。

機場捷運全線總計有青埔、龜山及新莊等3座主變電站(BSS),從99年10月1日正式開工之後,在承包商、監造、捷工處供電隊及全體工作伙伴的共同努力下,一一克服施工過程所面臨的困難與障礙,大致維持每年一座主變電站送電的進度,分別在100年11月1日、101年9月28日及102年12月10日完成161kV送電。
在考量供電系統之安全與穩定的情況下,各主變電站分別由台電引入兩迴路161kV電源,一路經常一路備用,經氣體絕緣斷路器(GIS)至主變壓器將電壓降壓至22.8kV,再將電力分送到牽引動力變電站(TSS)供應電聯車動力用電及車站變電站(SSS)供應車站設施用電。當經常供電迴路電力發生中斷時,備用迴路將取代經常供電迴路;而任何一座主變電站進行歲修保養或發生故障時,可由相臨主變電站轉供,不影響營運。每一主變電站均設有兩座主變壓器,分別供應電聯車牽引動力及車站設施用電,當其中一座主變壓器進行維修或故障時,另一座主變壓器可同時全額供應電聯車及車站所需用電。
在正常運轉下,每一座主變電站各有其供電範圍,新莊主變電站之供電範圍為臺北車站(A1)至體育大學站(A7),龜山主變電站之供電範圍為長庚醫院站(A8)至機場第二航廈站(A13),青埔主變電站之供電範圍為機場第三航廈站(A14A)至環北站(A21),在三座主變電站均已完成送電的情況下,將可配合後續的系統整合測試作業。

The TIAA MRT Construction includes three Bulk Supply Substations (BSS), respectively Chingpu, Xinzhuang and Gueishan. Since the beginning of Power Supply System (PSS) Construction on October 1st, 2010, we managed to overcome all obstacles during construction and maintained a certain progress with cooperation from contractors, supervisors and the Power Supply Team from MRT Engineering Office. In the last three years, we were able to complete power distribution of one BSS a year in which Chingpu BSS started operation on November 1st, 2011 and Gueishan BSS started operation on September 28th, 2012 and Xinzhuang BSS has completed 161kV power distributions on December 10th, 2013.
In consideration of the stability and safety of PSS, all three substations were introduced with two 161kV power distribution loops by Taipower Company. One of the loops is for regular power supply and the other one is backup power supply. First, in the bulk transformer, GIS brings the voltage down to 22.8kV. The electricity is then distributed to TSS for EMU traction and SSS for station facilities. When encountering a power cut in regular power supply loop, the backup loop then replaces power supply of the regular loop. During the annual maintenance or sudden malfunction occurrences of any one of the BSSs, power supply could be provided by another BSS. Under such power transfer situations, full power supply could be provided without interfering with regular operation. Every BSS is equipped with two bulk transformers, one of which is for EMU traction power supply and the other for the power supply of station facilities. When one of the transformers is in maintenance or malfunctioning, the other could provide full power supply replacement.
Under regular operation, each BSS has its power supply areas: for Xinzhuang BBS, its power supply area is Taipei Main Station(A1)- National Taiwan Sport University Station (A7) for station facilities; for Gueishan BBS, its power supply area is Chang Gung Memorial Hospital Station(A8)- Airport Terminal 2 Station(A13) for station facilities; for Chingpu BBS, its power supply area is Airport Terminal 3 Station (A14A)- Huanbei Station (A21) for station facilities. With the completion of all three BSSs, the following integration assessments could proceed fluently.

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