Dual-side regulating transformers
Transformers regulating both HV and LV sides with a wide-range OLTC (±10 taps, ±15%), suited to grids with large voltage swings.
6 – 110kV16 – 63MVA

Technical data
- Voltage (kV)
- 6; 10; 35; 110
- Rating (MVA)
- 16; 25; 40; 63
- Tap range
- OLTC (±10 taps, ±15%)
- LV voltage (kV)
- 6.0; 6.3; 6.6; 10.0; 10.5; 11.0; 36; 66
- Cooling
- ONAN; ONAF; ONAN/ONAF
Applications
- Distribution and sub-transmission grids with voltage variation
- Special industrial loads
Proven track record
Featured projects
View all →
MEEPOWER marks a milestone: designing, building, installing and energizing a 220kV–250MVA transformer
16 October 2025 became a historic day for MEEPOWER as the company designed, manufactured, installed and energized its own 220kV–250MVA transformer at Binh Tan substation.

Unit 2 of Xekaman 3 hydropower plant energized
At Xekaman 3 hydropower plant in Sekong province, Laos, DONGANHMEE worked with Xekaman 3 Power Co., Ltd. to put generating unit 2 back into service.

Unit 1 of Xekaman 3 hydropower plant energized
At Xekaman 3 hydropower plant in Sekong province, Laos, DONGANHMEE worked with Xekaman 3 Power Co., Ltd. to put generating unit 1 back into service.






