Liquid immersed transformers are a type of transformer that uses a liquid dielectric medium, such as mineral oil or synthetic oil, to provide insulation and cooling. This type of transformer is becoming increasingly popular due to its improved efficiency and reliability.
The use of a liquid dielectric medium in a transformer provides several advantages over traditional air-cooled transformers. First, the liquid dielectric medium is able to absorb more heat than air, allowing the transformer to operate at higher temperatures and higher loads without overheating. This increased efficiency results in lower energy costs and improved reliability.
Second, the liquid dielectric medium also provides better insulation than air, reducing the risk of electrical faults and short circuits. This improved insulation also reduces the risk of fire, as the liquid dielectric medium is able to extinguish any sparks that may occur.
Third, the liquid dielectric medium also provides better cooling than air, allowing the transformer to operate at higher temperatures and higher loads without overheating. This improved cooling also reduces the risk of transformer failure due to overheating.
Finally, the liquid dielectric medium also provides better protection against corrosion and other environmental factors, increasing the lifespan of the transformer.
Type
Rated capacity （KVA）
Voltage combination（KV）
No-load losses（W）
Load losses（W）
No-load Current (%)
Short-circuit impedance (%)
SH15-M-30
30
6,6.3,10,10.5,11/0.4
33
630
1.50
4.0
SH15-M-50
50
6,6.3,10,10.5,11/0.4
43
910
1.20
4.0
SH15-M-63
63
6,6.3,10,10.5,11/0.4
50
1090
1.10
4.0
SH15-M-80
80
6,6.3,10,10.5,11/0.4
60
1310
1.00
4.0
SH15-M-100
100
6,6.3,10,10.5,11/0.4
75
1580
0.90
4.0
SH15-M-125
125
6,6.3,10,10.5,11/0.4
85
1890
0.80
4.0
SH15-M-160
160
6,6.3,10,10.5,11/0.4
100
2310
0.60
4.0
SH15-M-200
200
6,6.3,10,10.5,11/0.4
120
2730
0.60
4.0
SH15-M-250
250
6,6.3,10,10.5,11/0.4
140
3200
0.60
4.0
SH15-M-315
315
6,6.3,10,10.5,11/0.4
170
3830
0.50
4.0
SH15-M-400
400
6,6.3,10,10.5,11/0.4
200
4520
0.50
4.0
SH15-M-500
500
6,6.3,10,10.5,11/0.4
240
5140
0.50
4.0
SH15-M-630
630
6,6.3,10,10.5,11/0.4
320
6200
0.30
4.5
SH15-M-800
800
6,6.3,10,10.5,11/0.4
380
7500
0.30
4.5
SH15-M-1000
1000
6,6.3,10,10.5,11/0.4
450
10300
0.30
4.5
SH15-M-1250
1250
6,6.3,10,10.5,11/0.4
530
12000
0.20
4.5
SH15-M-1600
1600
6,6.3,10,10.5,11/0.4
630
14500
0.20
4.5
SH15-M-2000
2000
6,6.3,10,10.5,11/0.4
750
18300
0.20
5.0
SH15-M-2500
2500
6,6.3,10,10.5,11/0.4
900
21200
0.20
5.0
Overall, Liquid immersed transformers provide improved efficiency and reliability compared to traditional air-cooled transformers. This makes them an ideal choice for applications where high efficiency and reliability are required.
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