High-temperature resistant Natural ester insulating oil distribution transformer
- Environment protection: the vegetable oil of vegetable oil transformer is renewable and biodegradable compared with common mineral oil. The degradation rate within 21 days exceeds 98%, and it will not pollute the environment and endanger the human health really.
- Safety: with high flame retardancy. The traditional mineral oil transformer may be blasted due to low ignition point (150-200℃), while the ignition point of vegetable oil is up to 360 and the flash point is up to 330.
- High overload: the temperature rise of high overload transformer is increased by 10K to ensure its overload capacity based on normal service life and fully meet the overload requirement of distribution network
- Low noise: the noise of vegetable oil transformer is more than 2dB lower than that of mineral oil transformer and about 10dB lower than that of dry type transformer.
- Long service life: compared with mineral oil, the vegetable oil can reduce the ageing time of insulating paper by 5-8 times significantly and prolong the service life of transformer by 33% (up to 30-40 years)
- Good moisture resistivity: the voltage withstand level can be reduced only when the water content in vegetable insulating oil is more than 800mg/kg, which is increased by several times compared with the critical point (40mg/kg) of mineral insulating oil.
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Areas with high environmental protection requirement, such as water source and scenic area;;
Places with high safety requirement, such as streets, village in the city and other densely-populated areas;
Places with high load rate, such as industrial enterprises and commercial plaza;
Areas with frequent overload phenomena.
Product Details
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Model Description
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Example:10kV fully-enclosed high-temperature resistant vegetable oil distributiontransformer with three-phase, natural ester, self-cooling, duplex winding,non-excitation voltage regulation; insulation endurance class: B; loss levelcode: 13; rated capacity: 100kVA; model: SW(B)13-M-100/10
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Features
- Environment protection: the vegetable oil of vegetable oil transformer is renewable and biodegradable compared with common mineral oil. The degradation rate within 21 days exceeds 98%, and it will not pollute the environment and endanger the human health really.
- Safety: with high flame retardancy. The traditional mineral oil transformer may be blasted due to low ignition point (150-200℃), while the ignition point of vegetable oil is up to 360 and the flash point is up to 330.
- High overload: the temperature rise of high overload transformer is increased by 10K to ensure its overload capacity based on normal service life and fully meet the overload requirement of distribution network
- Low noise: the noise of vegetable oil transformer is more than 2dB lower than that of mineral oil transformer and about 10dB lower than that of dry type transformer.
- Long service life: compared with mineral oil, the vegetable oil can reduce the ageing time of insulating paper by 5-8 times significantly and prolong the service life of transformer by 33% (up to 30-40 years)
- Good moisture resistivity: the voltage withstand level can be reduced only when the water content in vegetable insulating oil is more than 800mg/kg, which is increased by several times compared with the critical point (40mg/kg) of mineral insulating oil.
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Conditions of Use
- Indoors or outdoors with the elevation of less than 1000m
- Maximum ambient temperature: +40℃, maximum daily mean temperature: +30℃
- Maximum annual average temperature: +20℃, minimum temperature: -25℃
- TTransformer for special conditions can be provided according to the user's requirements
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Technical Parameters
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S/N
Item
Standard parameters list
1
Rated voltage
10/ 0.4 kV
2
High-voltage phases
Three-phase
3
Low-voltage phases
Three-phase four-wire
4
Grade mark of connection group
Dyn11
5
Core structure
Laminated/coiled core
6
Insulation endurance class
Level B/F
7
Rated capacity kVA
100
200
315
400
500
630
8
High-voltage tapping range (%)
±2×2.5
9
Rated frequency (Hz)
50
10
No-load loss (W)
150
240
340
410
480
570
11
Load loss (W)
1580
2730
3830
4520
5410
6200
12
Total losses (W)
1730
2970
4170
4930
5890
6770
13
No-load current (%)
1.1
1.0
0.9
0.8
0.8
0.6
14
Short-circuit impedance (%)
4
4
4
4
4
4.5
15
Noise level (sound power level) (dB)
52
56
58
58
59
59
16
Noise level (sound pressure level) (dB)
41
42
44
44
46
47
Associated Solution
