High-temperature resistant high overload oil-immersed transformer
- Strong overload capacity: undertake the overload (6h 1.5 times, 3h 1.75 times and 1h 2 times) based on rated temperature rise without influencing the service life.
- Overload without service life loss: with the only DuPont Nomex T910 insulating paper certified by UL, the B-level insulation system and higher temperature rise limit, while the insulation system of ordinary transformer is A level.
- Safe performance with high reliability: the ignition point and flash point of high overload transformer oil imported from the United States are much higher than that of ordinary transformer oil, and it has higher safety performance under high temperature.
- Superior comprehensive economic operation benefits: the high overload transformer has higher comprehensive economic benefits in using area.
- The performance level is consistent with that of ordinary transformer: with the same parameters as that of ordinary transformer, i.e., the transformer can achieve high overload capacity without affecting other electrical performances.
- Be applicable to the distribution area with low annual average load rate, large load peak-valley difference and substantial load increase in short time during spring festival and busy farming season.
Product Details
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Model Description
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Features
- Strong overload capacity: undertake the overload (6h 1.5 times, 3h 1.75 times and 1h 2 times) based on rated temperature rise without influencing the service life.
- Overload without service life loss: with the only DuPont Nomex T910 insulating paper certified by UL, the B-level insulation system and higher temperature rise limit, while the insulation system of ordinary transformer is A level.
- Safe performance with high reliability: the ignition point and flash point of high overload transformer oil imported from the United States are much higher than that of ordinary transformer oil, and it has higher safety performance under high temperature.
- Superior comprehensive economic operation benefits: the high overload transformer has higher comprehensive economic benefits in using area.
- The performance level is consistent with that of ordinary transformer: with the same parameters as that of ordinary transformer, i.e., the transformer can achieve high overload capacity without affecting other electrical performances.
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Conditions of Use
- Indoors or outdoors with the elevation of less than 1,000m
- Maximum ambient temperature: +40℃, maximum daily mean temperature: +30℃
- Maximum annual average temperature: +20℃, minimum temperature: -25℃
- Transformer 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 |
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Model |
S13 high overload distribution transformer |
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1 |
Rated voltage |
10/ 0.4 kV |
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2 |
High-voltage phases |
Three-phase |
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3 |
Low-voltage phases |
Three-phase four-wire |
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4 |
Grade mark of connection group |
Dyn11 |
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5 |
Core structure |
Laminated/coiled core |
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6 |
Insulation endurance class |
Level B/F |
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7 |
Rated capacity kVA |
50 |
100 |
200 |
315 |
400 |
500 |
630 |
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8 |
High-voltage tapping range (%) |
±2×2.5 |
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9 |
Rated frequency (Hz) |
50 |
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10 |
No-load loss (W) |
100 |
150 |
240 |
340 |
410 |
480 |
570 |
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11 |
Load loss (W) |
910 |
1580 |
2730 |
3830 |
4520 |
5410 |
6200 |
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12 |
Total losses (W) |
1010 |
1730 |
2970 |
4170 |
4930 |
5890 |
6770 |
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13 |
No-load current (%) |
1.3 |
1.1 |
1.0 |
0.9 |
0.8 |
0.8 |
0.6 |
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14 |
Short-circuit impedance (%) |
4 |
4 |
4 |
4 |
4 |
4 |
4.5 |
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15 |
Noise level (sound power level) (dB) |
50 |
52 |
56 |
58 |
58 |
59 |
59 |
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16 |
Noise level (sound pressure level) (dB) |
41 |
41 |
42 |
44 |
44 |
46 |
47 |
Associated Solution
