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Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Specifications
Brand Name :
GuangGao
Model Number :
D
Certification :
ISO CESI UL KEMA
Place of Origin :
Guangzhou
MOQ :
3
Payment Terms :
T/T L/C
Packaging Details :
Export Standard Package
Name :
Oil Immersed Distribution Transformer
Phase :
3
Input Voltage :
6kV、6.3kV、6.6kV、10kV、10.5kV、11kV
Output Voltage :
0.4kV
Winding Material :
Copper / Aluminum
Core Material :
Silicon Steel Core / Amorphous Core
Application :
Power
Rated Capacity :
30-2500KVA
Warranty :
2 years
Vector Group :
Dyn11 Yzn11 Yyn0
Cooling Method :
ONAN
Standard :
IEC Standard
Description
20kV Oil-immersed Distribution Transformer S(B)13-NX3 Energy Efficiency Level 3
Product Specifications
20kV oil-immersed distribution transformer S(B)13-NX3 energy efficiency level 3
Capacity(kVA) Voltage Combination

Vector group

 No load loss (W) Full Load Loss (W) Short Circuit Impedance (%)
HV(kV) H.V. Tapping Range LV(kV)
30

20
20(10)
or others

 ±5%/ ±2×2.5% 0.4 Dyn11
Yzn11
Yyn0		 80 660/630 5.5
50 100 960/910
63 120 1140/1090
80 140 1370/1300
100 160 1640/1570
125 190 1980/1880
160 230 2410/2300
200 270 2850/2720
250 320 3340/3180
315 380 4000/3810
400 460 4720/4490
500 540 5640/5380
630 650 6480 6
800 780 7840
1000 920 10700
1250 1100 12500
1600 1330 15100
2000 1560 19100
2500 1870 22200
The full load loss “/” is followed by the data of the vector group Yyn0
Product Overview
  • Rural Power Grids: Rural areas often have large distribution coverage, scattered load points, and limited maintenance budgets. The transformer’s cost advantage aligns with rural grid investment constraints, while its outdoor installation capability eliminates the need for expensive indoor 配电 rooms. Additionally, its load flexibility handles the seasonal peaks in rural electricity use (e.g., irrigation in summer, heating in winter).
  • Suburban Industrial Distribution: Suburban small and medium-sized enterprises (SMEs)—such as hardware factories, food processing plants, and packaging workshops—have moderate and stable power demands. They prioritize cost control over high energy efficiency, making the transformer a cost-effective choice. The transformer’s ability to withstand short-term overloads also accommodates occasional peak loads (e.g., when starting large machinery like compressors).
  • Outdoor Temporary Power Supply: For temporary projects such as road construction, building renovation, and outdoor events (e.g., rural fairs), the transformer’s quick installation (due to standardized design) and outdoor durability meet the demand for flexible, short-term power supply. Its low initial cost also reduces the overall budget for temporary power solutions, as these projects do not require long-term, high-investment equipment.

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Application

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Our customers

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Production Process

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Professional Equipment

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Exhibition(Dubai exhibition, US exhibition, Thailand exhibition, Philippines exhibition……)

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Certificate(Power transformers with CE, ISO, KEMA, UL certificates and test reports.)

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Target Market

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Company Profile

Guanggao Transformer is a professional transformer manufacturer. We produce single-phase, three-phase, dry-type, distribution, and high-voltage transformers (110 kV and above). We meet IEEE/ANSI/UL/CSA and IEC standards. Guanggao Transformer has nearly 25 years of transformer export experience. The company has modern laboratory construction, such as high-voltage test hall, within which there is a 3000kV lightning impulse testing device, and some advanced testing equipment, such as CA-21 moisture analyzer from Mitsubishi, American Fluke Ti30 infrared image detector, American RM-3WE three dimensional vibration. And it was identified as the national power transformer energy efficiency testing laboratories in 2011.

The company has undertaken the National Olympic Security Power Project, the National 851 project, the whole construction of the Guangzhou Asian Games, Guangzhou BRT and other important security power projects. The products used in the above projects are highly safe and in a reliable operation throughout the country. Also, these products are exported to Myanmar, Madagascar, Malaysia,other countries. Enjoying a good reputation on the electromechanical market, "Guanggao Brand"was identified as Guangdong famous brand, the product was identified as the National Energy Efficiency Star Products and Brand-Name Products in Guangdong Province.If you have transformer needs, please contact us.

Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Contact us
  • Add: No. 15, Yunpu 1st Road, Yunpu Industrial Zone, Huangpu, Guangzhou, Guangdong, China
  • Tel: (+86)-020-82505003
  • Email: ggelectric@gz-gg.com
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Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

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Product Detail
Brand Name :
GuangGao
Model Number :
D
Certification :
ISO CESI UL KEMA
Place of Origin :
Guangzhou
MOQ :
3
Payment Terms :
T/T L/C
Contact Supplier
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3
Three Phase 250 Kva Distribution Transformer 20kV S(B)13-NX3 Energy Efficiency Level 3

Guangzhou Guanggao High Voltage Electric Apparatus Co.,Ltd.

Verified Supplier
1 Years
guangzhou
Since 1958
Business Type :
Manufacturer, Exporter
Main Products :
Single Phase Pole Mounted Distribution Transformer, Pad Mounted Distribution Transformer, Dry Type Distribution Transformer
Employee Number :
500~999
Certification Level :
Verified Supplier
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