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| Vietnam Thai An 220kV Substation |
| There is a three-phase compact auto-transformer installed in Thai An 220kV substation, the rated capacity of transformer is 160/160/50 MVA, transformation ratio: 225±8×1.25%/115/10.5kV. The main function of this substation is to step up the electric energy of Thai An power station and THUAN HOA power station to 220kV, after that to connect to Ha Giang 220kV substation and then connecting to the Vietnam gird. The Station officially connected to the Vietnam gird on Sep 29th 2011.
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