Exploring the Benefits of Oil Insulated Transformers: A Comparison of Dyn11, Yyno, and YNd11 from a Chinese Manufacturer
Oil insulated transformers are a vital component of the electrical power system, providing a reliable and efficient means of transferring energy from one point to another. As such, it is important to understand the various types of oil insulated transformers available and their respective benefits. This paper will compare three types of oil insulated transformers from a Chinese manufacturer: Dyn11, Yyno, and YNd11.
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
The Dyn11 transformer is a three-phase, oil-filled transformer with a rated power of up to 10 MVA. It is designed to operate in a wide range of temperatures and is equipped with a high-efficiency cooling system. This transformer is also designed to be highly reliable and has a long service life. Additionally, it is equipped with a low-noise level and is capable of providing a high level of protection against short circuits.
The Yyno transformer is a three-phase, oil-filled transformer with a rated power of up to 20 MVA. It is designed to operate in a wide range of temperatures and is equipped with a high-efficiency cooling system. This transformer is also designed to be highly reliable and has a long service life. Additionally, it is equipped with a low-noise level and is capable of providing a high level of protection against short circuits.
The YNd11 transformer is a three-phase, oil-filled transformer with a rated power of up to 30 MVA. It is designed to operate in a wide range of temperatures and is equipped with a high-efficiency cooling system. This transformer is also designed to be highly reliable and has a long service life. Additionally, it is equipped with a low-noise level and is capable of providing a high level of protection against short circuits.
In terms of performance, all three types of oil insulated transformers from the Chinese manufacturer offer excellent performance. The Dyn11 transformer is designed to provide a high level of protection against short circuits, while the Yyno and YNd11 transformers are designed to provide a high level of reliability and long service life. Additionally, all three types of transformers are designed to operate in a wide range of temperatures and are equipped with a high-efficiency cooling system.
In terms of cost, the Dyn11 transformer is the most cost-effective option, while the Yyno and YNd11 transformers are more expensive. However, the higher cost of the Yyno and YNd11 transformers is offset by their increased performance and reliability.
In conclusion, all three types of oil insulated transformers from the Chinese manufacturer offer excellent performance and reliability. The Dyn11 transformer is the most cost-effective option, while the Yyno and YNd11 transformers offer increased performance and reliability at a higher cost.
The YNd11 transformer is a three-phase, oil-filled transformer with a rated power of up to 30 MVA. It is designed to operate in a wide range of temperatures and is equipped with a high-efficiency cooling system. This transformer is also designed to be highly reliable and has a long service life. Additionally, it is equipped with a low-noise level and is capable of providing a high level of protection against short circuits.
In terms of performance, all three types of oil insulated transformers from the Chinese manufacturer offer excellent performance. The Dyn11 transformer is designed to provide a high level of protection against short circuits, while the Yyno and YNd11 transformers are designed to provide a high level of reliability and long service life. Additionally, all three types of transformers are designed to operate in a wide range of temperatures and are equipped with a high-efficiency cooling system.
In terms of cost, the Dyn11 transformer is the most cost-effective option, while the Yyno and YNd11 transformers are more expensive. However, the higher cost of the Yyno and YNd11 transformers is offset by their increased performance and reliability.
In conclusion, all three types of oil insulated transformers from the Chinese manufacturer offer excellent performance and reliability. The Dyn11 transformer is the most cost-effective option, while the Yyno and YNd11 transformers offer increased performance and reliability at a higher cost.