Guangzhou Guanggao High Voltage Electric Apparatus Co.,Ltd.
                                                                                                           
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20kV Oil Immersed Distribution Transformer 630kVA S(B)13-NX3 Energy Efficiency Level 3 with 650W No Load Loss

Price Negotiable
Price: Negotiable
MOQ: 3
Delivery Time: Negotiable
Brand: GuangGao
Product Description
Technical Specifications
Capacity (kVA) Voltage Combination Vector Group No Load Loss (W) Full Load Loss (W) Short Circuit Impedance (%)
30 20kV / 0.4kV Dyn11, Yzn11, Yyn0 80 660/630 5.5
50 20kV / 0.4kV Dyn11, Yzn11, Yyn0 100 960/910 5.5
63 20kV / 0.4kV Dyn11, Yzn11, Yyn0 120 1140/1090 5.5
80 20kV / 0.4kV Dyn11, Yzn11, Yyn0 140 1370/1300 5.5
100 20kV / 0.4kV Dyn11, Yzn11, Yyn0 160 1640/1570 5.5
125 20kV / 0.4kV Dyn11, Yzn11, Yyn0 190 1980/1880 5.5
160 20kV / 0.4kV Dyn11, Yzn11, Yyn0 230 2410/2300 5.5
200 20kV / 0.4kV Dyn11, Yzn11, Yyn0 270 2850/2720 5.5
250 20kV / 0.4kV Dyn11, Yzn11, Yyn0 320 3340/3180 5.5
315 20kV / 0.4kV Dyn11, Yzn11, Yyn0 380 4000/3810 5.5
400 20kV / 0.4kV Dyn11, Yzn11, Yyn0 460 4720/4490 5.5
500 20kV / 0.4kV Dyn11, Yzn11, Yyn0 540 5640/5380 5.5
630 20kV / 0.4kV Dyn11, Yzn11, Yyn0 650 6480 6
Product Features
Outdoor Environment Tolerance
  • Efficient oil-cooled heat dissipation system with customized protective shell (galvanized steel plate + fluorocarbon coating, C4 weather resistance grade)
  • Direct installation in outdoor open-air sites eliminates need for power distribution rooms
  • Saves 40%-50% of single-project site construction costs
  • Stable operation under high-temperature conditions (above 40°C)
  • Handles short-term high-load conditions (120% rated load for 1 hour)
Strong Load Adaptability
  • Mineral oil thermal buffering capacity manages load fluctuations
  • Ideal for rural irrigation season and suburban factory peak production periods
  • No frequent adjustment of operating parameters required
  • Ensures continuous power supply reliability
Product Images
20kV Oil Immersed Distribution Transformer exterior view showing robust construction and weather-resistant housing
Certifications & Quality Assurance
CE ISO KEMA UL
Certification documents for 20kV oil immersed distribution transformer including CE, ISO, KEMA and UL certificates
Manufacturer Profile

Guanggao Transformer is a professional manufacturer with nearly 25 years of export experience, producing single-phase, three-phase, dry-type, distribution, and high-voltage transformers (110 kV and above). The company meets IEEE/ANSI/UL/CSA and IEC standards with modern laboratory facilities including high-voltage test halls and advanced testing equipment.

Notable Projects
  • National Olympic Security Power Project
  • National 851 Project
  • Guangzhou Asian Games Construction
  • Guangzhou BRT System
Contact Information

Address: No. 15, Yunpu 1st Road, Yunpu Industrial Zone, Huangpu, Guangzhou, Guangdong, China

Telephone: (+86)-020-82505003

Email: ggelectric@gz-gg.com

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Guanggao High Voltage Electric Apparatus Co.,Ltd.
Location No.15,Yunpu1st Road, Yunpu Industrial Zone Luogang Guangzhou, China
Contact Person Liu

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