Oil filled transformers are designed to withstand extreme cold temperatures in China due to the country’s harsh winter climate. These transformers are designed to operate in temperatures as low as -40°C, and are equipped with a variety of features to ensure their reliable operation in such extreme conditions.
First, Oil filled transformers are designed with a high-grade insulation system that is able to withstand the cold temperatures. This insulation system is composed of a combination of materials, such as paper, mica, and polyester, which are designed to maintain their insulation properties even in extreme cold. Additionally, the insulation system is designed to be highly resistant to moisture, which is a common problem in cold climates.
Second, Oil filled transformers are designed with a special type of oil that is able to remain fluid even in extremely cold temperatures. This oil is composed of a combination of mineral oils and synthetic oils, which are designed to remain fluid even at temperatures as low as -40°C. Additionally, the oil is designed to be highly resistant to oxidation, which helps to ensure the transformer’s long-term reliability.
Type
Rated capacity （KVA）
Voltage combination（KV）
No-load losses（W）
Load losses（W）
No-load current (%)
Short-circuit impedance (%)
S11-630
630
33,35/6.3,6.6,10.5,11
830
7870
1.10
6.5
S11-800
800
33,35/6.3,6.6,10.5,11
980
9410
1.00
6.5
S11-1000
1000
33,35/6.3,6.6,10.5,11
1150
11540
1.00
6.5
S11-1250
1250
33,35/6.3,6.6,10.5,11
1410
13940
0.90
6.5
S11-1600
1600
33,35/6.3,6.6,10.5,11
1700
16670
0.80
6.5
S11-2000
2000
33,35/6.3,6.6,10.5,11
2180
18380
0.70
6.5
S11-2500
2500
33,35/6.3,6.6,10.5,11
2560
19670
0.60
6.5
S11-3150
3150
33,35/6.3,6.6,10.5,11
3040
23090
0.56
7.0
S11-4000
4000
33,35/6.3,6.6,10.5,11
3620
27360
0.56
7.0
S11-5000
5000
33,35/6.3,6.6,10.5,11
4320
31380
0.48
7.0
S11-6300
6300
33,35/6.3,6.6,10.5,11
5250
35060
0.48
7.5
S11-8000
8000
33,35/6.3,6.6,10.5,11
7200
38500
0.42
7.5
S11-10000
10000
33,35/6.3,6.6,10.5,11
8700
45300
0.42
7.5
S11-12500
12500
33,35/6.3,6.6,10.5,11
10080
53900
0.40
8.0
S11-16000
16000
33,35/6.3,6.6,10.5,11
12160
65800
0.40
8.0
S11-20000
20000
33,35/6.3,6.6,10.5,11
14400
79500
0.40
8.0
S11-25000
25000
33,35/6.3,6.6,10.5,11
17020
94100
0.32
8.0
S11-31500
31500
33,35/6.3,6.6,10.5,11
20220
112900
0.32
8.0
Finally, Oil filled transformers are designed with a variety of other features that help to ensure their reliable operation in extreme cold temperatures. These features include special heaters that are designed to keep the transformer’s internal components warm, as well as special cooling systems that are designed to keep the transformer’s oil from freezing. Additionally, the transformers are designed with a variety of safety features, such as pressure relief valves and temperature sensors, which help to ensure the transformer’s safe operation in extreme cold.
Overall, Oil filled transformers are designed to withstand extreme cold temperatures in China due to the country’s harsh winter climate. These transformers are equipped with a variety of features, such as a high-grade insulation system, special oil, and various safety features, which help to ensure their reliable operation in such extreme conditions.
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Second, Oil filled transformers are designed with a special type of oil that is able to remain fluid even in extremely cold temperatures. This oil is composed of a combination of mineral oils and synthetic oils, which are designed to remain fluid even at temperatures as low as -40°C. Additionally, the oil is designed to be highly resistant to oxidation, which helps to ensure the transformer’s long-term reliability.
