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Chongqing News

Chongqing Rail Transit Line 4 has been “powered on”

2021-12-01 14:21:53

CHONGQING (CQNEWS) -- A reporter learned that the 35kv power transmission of the Phase II of Chongqing Rail Transit Line 4 succeeded, and the whole line has been “powered on”, which lays a foundation for the following station equipment debugging and vehicle debugging.

Technicians were debugging after 35kv power transmission launched at Tongzilin Main Substation of Phase II of Chongqing Rail Transit Line 4

The power supply system project of Phase II of Chongqing Rail Transit Line 4 has 23 substations, with a total of 248 kilometers of high-voltage cables. During construction, workers have to overcome many difficulties such as cross-work and discontinuous working face.

Main electric transducers at Tongzilin Main Substation

Tongzilin Main Substation is the first main substation powered on for the Phase II of Chongqing Rail Transit Line 4. The main substation is called as the “heart” of power supply system, From the 220kV substation of State Grid, the power supply is delivered here by step-down to 110kV; and then from the mixed traction and step-down substation to 35KV, it is delivered to each station and section of the Phase II of Chongqing Rail Transit Line 4 and the rail line to provide power for the operation of rail vehicles.

Overhead lines of the Phase II of Line 4

Map of the Phase II of Line 4 (Photo provided by the interviewee)

The Phase II of Chongqing Rail Transit Line 4 is about 32.8km long in total, with 15 stations including Tieshanping Station, Ganbazi Station, Fuhong Avenue, Yuzui Station, Yumiaolu Station, Gaoshikan Station, Fusheng Station, Wangjiacheng Station, Shengjibao Station, Longxing Station, Gaoshita Station, Pufu Station, Tongzilin Station, Shichuan South Station and Shichuan Station (all these stations’ name is provisional). At present, the construction of the Phase II of CRT Line 4 is accelerating, and the decoration of the stations is under construction too. When it completed and open to traffic, the Phase II of CRT Line 4 will connect Yufu and Longxing of Liangjiang New Area. (Translated by Liu Hongyan, Fathom Language Limited)

Editor:Jiang Yiwei