Distribution Transformer

  • 33KV S11 Series Oil Immersed Distribution Transformer 
  • 33KV S11 Series Oil Immersed Distribution Transformer 

33KV S11 Series Oil Immersed Distribution Transformer 

The product conforms to the technical parameters and requirements of China National Standard GB1094 and GB/T6451, and a series of significant innovation is applies in aspects of material, design and structure. 

The product conforms to the technical parameters and requirements of China National Standard GB1094 and GB/T6451, and a series of significant innovation is applies in aspects of material, design and structure. It has the features of high efficiency and low loss. It can save a lot of operation cost, and the social benefits are very significant. In conclusion, it is a nationally promoted new product and it is deeply favored by customers.

The oil distribution transformer conforms to the technical parameters and requirements of China National Standard GB1094 and GB/T6451, and a series of significant innovation is applies in aspects of material, design and structure. The oil immersed distribution transformer has the features of high efficiency and low loss. It can save a lot of operation cost, and the social benefits are very significant. In conclusion, it is a nationally promoted new product and it is deeply favored by customers.

Model specification

Work condition

Installation type: indoor/outdoor/type

  • Ambient temperature: -25°C ~+40°C
  • Altitude: ≤1000m
  • Installation site: in places without corrosive gases and obvious dusts.

Reference standards

  • Power transformer: GB1094.1 -2-1996,GB1094.3-2003,GB1094.5-2008
  • Three-phase oil-immersed transformers: GB/T6451-2008

Performance characteristics

1.The features of this oil immersed power transformer are high efficiency and low loss. It can save a lot of operation cost, and the social benefits are very significant.

2.The iron cores are made of the imported high-conduction magnetism, cold-roll, and grain-oriented silicon-steel sheets. The iron cores and windings adopt the vacuum drying and vacuum oil-filling processes, which make the internal moisture down to the very low level.

3.The conservator is hermetically sealed, which make the internal running oil to insolate with oxygen and moisture efficiently.

4. The above features guarantee the transformer does not need to replace the oil during the operation, greatly decrease the maintenance cost, and prolong the service life.

Order information

Transformer type:

Rated capacity: KVA

Number of phases: three-phase 口 single-phase 口

High voltage: KV Low voltage: KV

Frequency: 50HZ 口 60HZ 口

Tapping range: ±4 x 2.5% 口 ±3 x 2.5% 口 other 口

Connection group: YynO 口 Dyn11 口 other 口

Impedance voltage: standard 口 other 口

Technical parameters of S11-50-2500/33 series distribution transformers

Rated capacity (kVA)Voltage combination (kV)Connec
ting
group
No-load
loss
y (w)
Load-loss
(W)(75℃)
Short ciruit
impedance
(%)
No-load
current
(%)
Weight (kg)Overail dimension (mm)Gauge
(mm)
High
voltage
(kV)
Tapping
(%)
Low
voltage
(kV)
TareOilTotalLength x
Width * Height
5035±5%0.4Dyn11  YynO2101270/12106.522303206501150x720x1200550×550
1002902120/20201.83804009801200x740x1300550×550
1253402500/23801.744043011001250x780x1380550×550
1603602970/28301.651046012001300x800x1400660×660
2004303500/33301.560050014001400x840x1500660×660
2505104160/39601.469053015001530x860x1580660×660
3156105010/47701.480057016701600x890x1630660×660
4007306050/57601.365019501730x950x1700660×660
5008607280/69301.2107071023001800x980x1800820×820
630104082801.1130083026501900x1000x1850820×820
800123099001160090031001950x1060x1900820×820
100014401215011800108037001980x1100x1950820×820
12501760146700.92100115040002010x1160x1980820×820
16002120175500.82550125047302040x1310x2000820×820
20002500206800.73100140056002170x1380x27001070×1070
25002975245000.63650150063002300x1450x29001070×1070

Technical parameters of S11-800 20000/33 series power transformers

Rated capacity (kVA)Voltage combination (kV)Connec
ting
group
No-load
loss
y (w)
Load-loss
(W)(75℃)
Short ciruit
impedance
(%)
No-load
current
(%)
Weight (kg)Overail dimension (mm)Gauge
(mm)
High
voltage
(kV)
Tapping
(%)
Low
voltage
(kV)
TareOilTotalLength x
Width * Height
80035±5%3.15
6.3
10.5
Yd11123099oi6.51151089032102020x1630x2400820×820
100014401215012060104037801880x1030x26401070×1070
12501760146700.9205094538902580x1300x25201070×1070
16002120175500.82430114545002270x1210x24501070×1070
20002720193500.72820142057202250x1380x22101070×1070
25003200207000.63330155060002300x1400x23001070×1070
315035  
36.5
38002430070.563670163070802520x2720x25601070×1070
40004520288000.564500183082002800x2250x25001070×1070
50005400330300.485255190091402600x21900x28801070×1070
63006560369007.50.4866502200112402830x3020x29251070×1070
8000±2×2.5%YNd119000405000.4294703050155503300x2970x30501475×1475
1000010880477000.42101803160170303250x2850x30001475×1475
12500126005670080.4110003660188003500x2850x30001475×1475
1600015200693000.4136504300222503620x3040x36001475×1475
2000018000837000.4152005260266403930x3720x35401475×1475
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