10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Application

The S11 10kV Three-Phase Oil Immersed Natural Air Cooling Double Winding Off-Circuit Tap Changing Distribution Transformer is an efficient and reliable solution for stepping down medium-voltage power in distribution networks. It is designed for applications where stability, energy efficiency, and lower operational costs are priorities. Its off-circuit tap changer allows for voltage adjustments when the transformer is offline, making it ideal for environments where on-load tap changing is not necessary.

 

Specifications

Technical Specifications (General)

  • Voltage Rating: 10kV (Primary), 0.4kV or 0.24kV (Secondary)
  • Power Rating: Typically from 50 kVA to 2500 kVA, depending on application requirements.
  • Cooling Type: Oil-immersed, natural air cooling (ONAN).
  • Frequency: 50 Hz or 60 Hz, depending on the local power grid standards.
  • Impedance Voltage: Typically between 4% and 6%, depending on the transformer size and rating.

Ambient air temperature
Maximum temperature: +40℃
Minimum temperature: -45℃
Average temperature of the warmest month: +30℃
The hottest annual average temperature: +20℃
Altitude: ≤ 1000m
Contamination class: III;
Seismic intensity: VIII
Power supply voltage waveform: approximately sinusoidal;
Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameter

S11 10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

TypeRated
Power(kVA
Rated
Voltage(kV)
Vecor
Group
Impedance

Voltage(%)

Tota
Weight(t)
Reference
Dimension(mm)
No Load
Loss (M)
Load
Loss (M)
S11-30/1030H.V.

6,6.3,10,10.5

±2×2.5%

±5%

L.V.

0.4

 

Dyn11

Yyn0

 

40.35720*480*850100630/600
S11-50/10500.4750*500*900130910/870
S11-63/10630.5800*600*9501501090/1040
S11-80/10800.551000*720*9801801310/1250
S11-100/101000.61050*750*10002001580/1500
S11-125/101250.71100*760*10502401890/1800
S11-160/101600.751120*770*10702802310/2200
S11-200/102000.81150*800*11003402730/2600
S11-250/102501.01300*950*11004003200/3050
S11-315/103151.21400*1000*11004803830/3650
S11-400/104001.41400*1000*12005704520/4300
S11-500/105002.01700*1200*14006805410/5150
S11-630/106304.52.51800*1300*15008106200
S11-800/108002.82150*1950*20009807500
S11-1000/1010003.22200*2000*2050115010300
S11-1250/1012503.72300*2100*2100136012000
S11-1600/1016004.52400*2200*2200164014500
S11-2000/10200055.52500*2400*2300194018300
S11-2500/1025006.42700*2600*2500229021200

S13 10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

TypeRated
Power(kVA
Rated
Voltage(kV)
Vector
Group
Impedance
Voltage(%)
Total
Weight(t)
Reference
Dimension(mm)
No Load
Loss (W)
Load
Loss (M)
S13-30/1030H.V.
6,6.3,10,10.5
±2×2.5%
±5%L.V.
0.4
Dyn11
YynO
40.35720*480*85080630/600
S13-50/10500.4750*500*900100910/870
S13-63/10630.5800*600*9501101090/1040
S13-80/10800.551000*720*9801301310/1250
S13-100/101000.61050*750*10001501580/1500
S13-125/101250.71100*760*10501701890/1800
S13-160/101600.751120*770*10702002310/2200
S13-200/102000.81150*800*11002402730/2600
S13-250/102501.01300*950*11002903200/3050
S13-315/103151.21400*1000*11003403830/3650
S13-400/104001.41400*1000*12004104520/4300
S13-500/105002.01700*1200*14004805410/5150
S13-630/106304.52.51800*1300*15005706200
S13-800/108002.82150*1950*20007007500
S13-1000/1010003.22200*2000*205083010300
S13-1250/1012503.72300*2100*210097012000
S13-1600/1016004.52400*2200*2200117014500
S13-2000/10200055.52500*2400*2300139018300
S13-2500/1025006.42700*2600*2500165021200

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hot-sale product

Application: High Voltage Transmission and Low Voltage Power Distribution
Rated Voltage: 35kV
Frequency: 50Hz / 60Hz
Cooling Type: Oil-Immersed, ONAN
Type: Three-Phase

Application: Power Distribution
Country of Origin: China
Certifications: ISO9001, CB, CE, KEMA

Professional oil immersed distribution transformer manufacturer
Transformer rated voltage: 6.3kV,10kV,11kV,13.2kV,13.8kV,15kV, 20kV, 22kV, 33kV, 35kV

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Quality assurance
Competitive production capacity
Factory direct sale, most competitive price.

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