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| Customization: | Available |
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| Application: | Power, Electronic, Lighting, Rectifier, Audio |
| Phase: | Three |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| 16800kVA 220-6.6kV Oil-immersed On-load tap changer Type Transformer | ||||||
| No. | Name | Unit | Guaranteed Value | |||
| 1 | Product name | Oil Immersed Transformer | ||||
| 2 | Country of origin | China | ||||
| 3 | Standard | IEC60076 | ||||
| 4 | Type | Oil-immersed type transformer | ||||
| 5 | Installation | Outdoor | ||||
| 6 | Altitude | m | ≤1000 | |||
| 7 | Ambient temperature | ºC | -10~40 | |||
| 8 | Transformer model | SFZ-16800/220-6.6 | ||||
| 9 | Rated |
|
kVA | 12000/15000/16800 | ||
|
kV | 220 | ||||
| Tapping range | ±16x0.625% @ 220kV side | |||||
|
kV | 6.6 | ||||
| 11 | Rated frequency | Hz | 50 | |||
| 12 | Number of phase | 3 | ||||
| 13 | Number of winding | 2 | ||||
| 14 | Transformer oil model | Mineral oil #25 NO PCB(Petro china)#25 PCB | ||||
| 15 | Cooling system | ONAN/ONAF1/ONAF2 | ||||
| 16 | Vector group | Dyn11 | ||||
| 17 | No-load current (%) | 0.3% | ||||
| 18 | No-load loss (kW) | 14kw | ||||
| 19 | On-load loss(kW,75ºC) | 96kw(at 15000KVA) | ||||
| 20 | Short circuit impedance | % | 12.6 | |||
| 21 | Temperature rise | Top oil | K | ≤55 | ||
| Winding | K | ≤65 | ||||
| 22 | Insulation level |
Primary | ||||
| a) Power frequency withstand voltage | kV | 400 | ||||
| b)Lightning impulse (full wave) | kV | 950 | ||||
| Secondary | ||||||
| a) Power frequency withstand voltage | kV | 25 | ||||
| b)Lightning impulse (full wave) | kV | 55 | ||||
| 23 | Winding Material (HV / LV) | Copper / Copper | ||||
| 24 | Core material | Grain oriented silicon steel | ||||
| 25 | Location of HV Bushings | Top | ||||
| 26 | Location of LV Bushings | Top | ||||
| 27 | HV Bushing | Porcelain(Oil paper capacitive type) / Brown color | ||||
| 28 | LV Bushing | Porcelain / Brown color | ||||
| 29 | Tap changer | Specification | On-load Tap Changer | |||
| Rated current | A | 300 or 500A | ||||
| Country of origin | China | |||||
| Tests | ||||||
| 30 | Measurement of insulation resistance between the core and tank. | Yes/No | Yes | |||
| 31 | Deformation of transformer winding resistance |
Yes/No | Yes | |||
| 32 | Measurement of voltage ratio and check of vector group |
Yes/No | Yes | |||
| 33 | Measurement of winding resistance | Yes/No | Yes | |||
| 34 | Measurement of insulation resistance of windings | Yes/No | Yes | |||
| 35 | Measurement of the capacitance and insulation power factor of windings | Yes/No | Yes | |||
| 36 | Measurement of load losses and impedance voltage | Yes/No | Yes | |||
| 37 | Measurement of no-load losses and current | Yes/No | Yes | |||
| 38 | Separate-source AC withstand voltage test | Yes/No | Yes | |||
| 39 | Partial discharge test | Yes/No | Yes | |||
| 40 | Induced AC voltage test | Yes/No | Yes | |||
| 41 | Transformer Oil Test | Yes/No | Yes | |||
| 42 | Sealing Test | Yes/No | Yes | |||
| Accessories | ||||||
| 43 | Oil temperature indicator | Yes/No | Yes | |||
| 44 | Winding temperature indicator | Yes/No | Yes | |||
| 45 | Pressure relief valve | Yes/No | Yes | |||
| 46 | Oil level indicator | Yes/No | Yes | |||
| 47 | Buchholz relay | Yes/No | Yes | |||
| 48 | Silica Gel Breather | Yes/No | Yes | |||
| 49 | Oil sample valve | Yes/No | Yes | |||
| 50 | Filling and draining oil valve | Yes/No | Yes | |||
| 51 | Earthling bolts | Yes/No | Yes | |||
| 52 | Lifting lugs | Yes/No | Yes | |||
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