Three Phase Oil Immersed Distribution Transformer
| Model Series | S13 |
| Rated Voltage | 2.5～40.5kV |
| Standard | IEC 60076-1/EN 50588-1 |
| Warranty | Two years |
| Application | Outdoor/Indoor |
Standard Features
- 1. Product Range:15kVA-10000kVA, up to 44kV
- 2. System voltage: max. 36 kVA 200 BIL
- 3. Coolers: corrugated wall or radiator
- 4. Oil preservation: hermetically sealed or conservator/free breathing
- 5. Tap changer: off-circuit or on-load
- 6. Cooling medium: mineral oil, Midel
- 7. Steel type core clamping system
- 8. High voltage (HV) multilayer winding
- 9. Low voltage (LV) foil winding or layer winding
- 10. Winding materials:aluminium or copper
- 11. High temperature class transformers
- 12. Low noise solution
- 13. Efficient transformers with reduced losses
- 14. Liquid-filled
- 15. Used in special conditions
- 16. Sophisticated facilities
- 17. Usage of wooden case
- 18. 3D package for drawings
- 19. Special test like Zero Sequence Impedence test
- 20. Cooling: ONAN, ONAN/ONAF, KFAF, KFW
Service Condition
- Altitude above sea level:
Maximum installation altitude:2000m - Max wind speed:35M/s
- No frequent violent shake.
- Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
- Note: Beyond those services condition should enquiry to manufacturer technicial dept during Order.
Tests
- Voltage ratio. Polarity and phase relationship test on each tapping
- Resistance of all windings
- No-load current and no-load losses measurementLoad losses measurement at rated current and frequency
- Impedance voltage measurement
- Induced over-voltage and separate source voltage withstand tests
- Impulse voltage withstand test
- Noise level test
- Oil leakage test
Overload test at 150% rated current for one hour after temperature rise test and hot resistance measurement of (HV – LV)
