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Dowei Electric Power transformer SCB,SGB

Dowei Electric Power transformer SCB,SGB

Product catalog summary

General Description:
The document provides specifications for dry type transformers manufactured by Ningbo Dowei Electric Co., Ltd. These transformers comply with international standards such as IEC 60076-11, ANSI/IEEE Std C57.12.01, and NEMA. They are certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. The transformers are designed for seismic conditions and high altitudes up to 5000 meters.

Product Scope:
The transformers feature windings in either aluminum or copper and are classified under E2 - C2 - F1 for environmental, climatic, and fire classes. They have insulation systems rated at 155 ºC (Class F) and 180 ºC (Class H). The design includes customized enclosures for both indoor and outdoor applications, air forced cooling fans, resistance temperature detectors (PT-100), bi-directional wheels, and optional electrostatic shields.

Typical Specifications:
The document details specifications for three-phase two-winding dry type transformers with NLTC across different voltage levels (10kV, 20kV, 35kV). Key parameters include:

Rated Capacity (kVA)
Voltage and tapping range (kV)
Vector group
No-load and on-load losses (W)
Impedance (%)
No-load current (%)
Noise levels (dB(A))

For example, a 10kV transformer with a capacity of 1000 kVA has a no-load loss of 1770 W, on-load loss of 8130 W, and noise level of 64 dB(A).

Vacuum Pressure Impregnated (VPI) Transformers:
Similar specifications are provided for VPI dry type transformers, which also adhere to the same international standards and certifications. These transformers have an insulation system rated at 180 ºC (Class H) and include similar features as the epoxy resin cast transformers.

Conclusion:
Ningbo Dowei Electric Co., Ltd. offers a comprehensive range of dry type transformers suitable for various applications, ensuring compliance with international standards and providing options for customization to meet specific environmental and operational requirements.

Catalog excerpts

Dowei Electric Power transformer SCB,SGB-1

Power Transmission & Distribution One stop equipments solution

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Dowei Electric Power transformer SCB,SGB-2

Epoxy Resin Cast (CRT) Dry Type TransformerGeneral Description: • IEC 60076-11, ANSI/IEEE Std C57.12.01, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 60076 & IEEE C57.12, ~ 5000m • Winding in either Aluminium or Copper • E2 - C2 - F1 Environmental / Climatic / Fire Classes • Insulation system: 155 °C (Class F) and 180 °C (Class H) • Customized Enclosure for Indoor and Outdoor application • Set of Fans for air forced cooling: AN/AF • Resistance Temperature...

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Dowei Electric Power transformer SCB,SGB-3

20kV Three-phase Two-winding Dry Type Transformer with NLTC Voltage and tapping range(kV) Impedance No-load 35kV Three-phase Two-winding Dry Type Transformer with NLTC Voltage and tapping range(kV) Impedance No-load NINGBO DOWEI ELECTRIC CO., LTD.608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930 | [email protected] | www.dowei-electric.com

Open the catalog to page 3

Dowei Electric Power transformer SCB,SGB-4

35kV Three-phase Two-winding Dry Type Power Transformer with NLTC Rated Voltage and tapping range(kV) No-load current (%) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930 | [email protected] | www.dowei-electric.com

Open the catalog to page 4

Dowei Electric Power transformer SCB,SGB-5

General Description: • IEC 60076-11, ANSI/IEEE Std C57.12.01, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 60076 & IEEE C57.12, ~ 5000m • Insulation system: 180 °C (Class H) • Customized Enclosure for Indoor and Outdoor application • Set of Fans for air forced cooling: AN/AF • Resistance Temperature Detector PT-100 • Bi-directional wheels for movement • Variable speed drives (VSD) application • Electrostatic shield for optional 10kV Vacuum Pressure Impregnated...

Open the catalog to page 5

Dowei Electric Power transformer SCB,SGB-6

NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930 | [email protected] | www.dowei-electric.com

Open the catalog to page 6

Dowei Electric Power transformer SCB,SGB

Dowei Electric Power transformer SCB,SGB

Catalog excerpts

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