General
Three-phase oil-immersed seald transformer of type s9-m is used in 11kv, 50hz, and power transmission and distribution system for power distribution in industrial and agricultural fields, power supply and lighting.
Product feature
1. Energy saving
In comparison with old type of s7, the average no-load power loss of s9 decreases 10.25%, the no-load current decreases 37.9%, and the average operation cost decreases 18.9% than the old type.
2. Long service life
Transformer oil tank is fully sealed. The oil tank and its edge shall be connected by bolts or welded. The transformer oils never touch with air, so it can extend service life.
3. High reliability
Some sealing parts of transformer oil tank have been improved and a higher process has been applied sealing, so reliability should be guaranteed.
4. Small area occupied
A kind of corrugated-plate radiator applied in s9-m transformers, through thermal-expansion and shrinking of the corrugated-plate while oil temperature changes, it could be instead of oil storage box. The shape of corrugated-plate radiators is beautiful and occupies a small area.