Low-Voltage Oil-Immersed Transformers
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of low-voltage oil-immersed transformers in China. If you're going to buy customized low-voltage oil-immersed transformers made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
These Low-Voltage Oil-Immersed Transformers are widely used in power supplies for lighting, factory motors, and other equipment. Another common application of these transformers can be found in temporary power solutions for construction sites.
To ensure product quality, safety, and durability, all units undergo pre-delivery testing by an electricity laboratory accredited by TAF (a member of the ILAC) according to ISO/IEC 17025.
| Standards | IEC (or specific national standards by request) |
| Number of Phases | 3 |
| Frequency | 50 or 60Hz |
| Primary Voltage | ≤ 600V |
| Secondary Voltage | ≤ 600V |
| Capacity | 5 kVA ~ 300 kVA |
| Connection Type | Δ–Δ, Δ–Y, Y–Δ or Y–Y |
| Cooling Method | Oil Natural Air Natural (ONAN) |
Specification
|
Chart One |
(reference) |
|||||||||
|
No. |
Capacity |
Efficiency |
Outline Dimensions (mm) |
(Approx.) |
Figure |
|||||
|
|
(kVA) |
% |
Oil (Volume) |
Net Weight |
(Fig.) |
|||||
|
|
|
|
A |
B |
C |
D |
E |
L |
kg |
|
|
1 |
75 |
97.50 |
720 |
600 |
850 |
400 |
400 |
75 |
370 |
3 |
|
2 |
100 |
97.60 |
790 |
610 |
900 |
400 |
400 |
95 |
450 |
|
|
3 |
125 |
97.65 |
790 |
610 |
900 |
400 |
400 |
95 |
520 |
|
|
4 |
150 |
97.70 |
880 |
750 |
950 |
450 |
450 |
160 |
610 |
|
|
5 |
200 |
97.80 |
920 |
760 |
1050 |
500 |
500 |
180 |
730 |
4 |
|
6 |
250 |
97.90 |
990 |
860 |
1160 |
550 |
550 |
200 |
870 |
|
|
7 |
300 |
98.00 |
990 |
860 |
1160 |
550 |
550 |
200 |
1000 |
|
Oil immersed transformer features
- Cores made with high-permeability cold-rolled grain-oriented silicon steel sheets (CRGO), together with high-conductivity windings, make for low-loss, low-noise, and high-efficiency performance.
- Insulating oil with high dielectric strength, chemical stability, and thermal conductivity.
- Stringent pre-delivery testing to ensure quality.
- Custom requests and specifications available.
Temperature environment：
① Long term stability at 220 ℃
② It can withstand short-term operation at 350 ℃
③ Stable performance over a wide range of temperature and humidity
④ No melting, flow and combustion at 250 ℃
⑤ At 750 ℃, no toxic or corrosive gases will be released
expore case
Package&delivery
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