250 kVA Oil Immersed Distribution Transformer 20kV S(B)22-NX1 Energy Efficiency Level 1
| Capacity (kVA) | Voltage Combination | Vector Group | No Load Loss (W) | Full Load Loss (W) | Short Circuit Impedance (%) |
|---|---|---|---|---|---|
| 30 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 70 | 480/560 | 5.5 |
| 50 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 85 | 700/660 | 5.5 |
| 63 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 100 | 830/800 | 5.5 |
| 80 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 120 | 990/940 | 5.5 |
| 100 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 135 | 1190/1140 | 5.5 |
| 125 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 160 | 1440/1360 | 5.5 |
| 160 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 190 | 1740/1660 | 5.5 |
| 200 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 225 | 2060/1970 | 5.5 |
| 250 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 265 | 2420/2300 | 5.5 |
| 315 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 315 | 2880/2750 | 5.5 |
| 400 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 375 | 3410/3240 | 5.5 |
| 500 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 445 | 4070/3880 | 5.5 |
| 630 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 530 | 4680 | 6 |
| 800 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 635 | 5660 | 6 |
| 1000 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 750 | 7710 | 6 |
| 1250 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 895 | 9000 | 6 |
| 1600 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 1080 | 10880 | 6 |
| 2000 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 1270 | 13760 | 6 |
| 2500 | 20(10) or others | Dyn11 Yzn11 Yyn0 | 1525 | 15990 | 6 |
Transformers with specifications not listed above can be manufactured to order to meet specific project requirements.
This ultra-energy-saving oil-immersed distribution transformer represents a core category of high-efficiency power distribution equipment under China's "Dual Carbon" strategy. Designed and produced in full compliance with national energy efficiency improvement requirements, it helps power systems reduce carbon emissions and supports current energy structure transformation needs.
Our transformers are certified with CE, ISO, KEMA, and UL certificates, supported by comprehensive test reports.
Guanggao Transformer operates with nearly 25 years of export experience and modern laboratory facilities including:
- 3000kV lightning impulse testing device
- Mitsubishi CA-21 moisture analyzer
- American Fluke Ti30 infrared image detector
- American RM-3WE three-dimensional vibration analyzer
Guanggao Transformer is a professional manufacturer producing single-phase, three-phase, dry-type, distribution, and high-voltage transformers (110 kV and above). We meet IEEE/ANSI/UL/CSA and IEC standards and have been identified as the national power transformer energy efficiency testing laboratory since 2011.
Our products have been deployed in major projects including the National Olympic Security Power Project, National 851 project, Guangzhou Asian Games, and Guangzhou BRT. With proven reliability and safety, our transformers are exported worldwide to countries including Myanmar, Madagascar, and Malaysia.
Address: No. 15, Yunpu 1st Road, Yunpu Industrial Zone, Huangpu, Guangzhou, Guangdong, China
Telephone: (+86)-020-82505003
Email: ggelectric@gz-gg.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.