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

Categories Oil Immersed Distribution Transformer
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
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  • Product Details
  • Company Profile

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

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 RangeLV(kV)
30

20
20(10)
or others

±5%/ ±2×2.5%0.4Dyn11
Yzn11
Yyn0
80660/6305.5
50100960/910
631201140/1090
801401370/1300
1001601640/1570
1251901980/1880
1602302410/2300
2002702850/2720
2503203340/3180
3153804000/3810
4004604720/4490
5005405640/5380
63065064806
8007807840
100092010700
1250110012500
1600133015100
2000156019100
2500187022200
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.

Application

Our customers

Production Process



Professional Equipment

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

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

Target Market


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.

Company Profile Image
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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