| Second hand generator step-up transformer with following main technical data |
:
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| Quantity |
: 3 pcs
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| Availablity |
: 1 pce October 2013
|
| |
: 2 pcs December 2014
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| Brand |
: ABB
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| Year of Manufacture |
: 1996
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| Condition |
: Second Hand
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| Application |
: Generator Step-up Transformers (GSU)
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| Basic Transformer Concept |
: oil-immersed, conservator tank
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| Tank Design |
: Rigid tank, detachable cooling radiators
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| Number of Phases |
: 3-phase
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| Rated Power |
: 24000/30000 kVA
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| Method of Cooling |
: ONAN/ONAF
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| Voltage Ratio (prim./sec.) |
: 66000/10000 V
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| Current (prim.) |
: 210 A / 262 A (ONAN/ONAF)
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| Current (sec.) |
: 1386 A / 1732 A (ONAN/ONAF)
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| Voltage Regulation |
: on-load tap changer (OLTC)
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| Tapping Range |
: +-8x1,25%, see table below for tapping range
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| Frequency |
: 50 Hz
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| Impedance |
: 10% at 30 MVA 66/10 kV
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| Insulatin Class |
: Class A
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| Temperature Rise (oil/wind) |
: 50/55 K
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| Connection |
: YNd1
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|
|
| Total Weight |
: ~42000 kg
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| Weight of Oil |
: ~9000 kg
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|
|
| Further documentation (complete rating plate data etc.) is available and can be sent
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| upon request!
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| Table of primary tappings |
:
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| 1. 59400 / 10000 V
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| 2. 60225 / 10000 V
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| 3. 61050 / 10000 V
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| 4. 61875 / 10000 V
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| 5. 62700 / 10000 V
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| 6. 63525 / 10000 V
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| 7. 64350 / 10000 V
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| 8. 65175 / 10000 V
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| 9. 66000 / 10000 V
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| 10. 66825 / 10000 V
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| 11. 67650 / 10000 V
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| 12. 68475 / 10000 V
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| 13. 69300 / 10000 V
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| 14. 70125 / 10000 V
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| 15. 70950 / 10000 V
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| 16. 71775 / 10000 V
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| 17. 72600 / 10000 V |
