Customization: | Available |
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Application: | Power, Electronic, Lighting, Rectifier, Audio |
Phase: | Three |
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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 |