Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36

Product catalog summary

Overview: This document provides detailed specifications and descriptions of various types of current transformers manufactured by Ningbo Dowei Electric Co., Ltd. These transformers are designed for both indoor and outdoor applications across different voltage levels, including 12kV, 24kV, and 36kV. The document outlines the compliance with international standards, structural and seismic design considerations, and the use of high-quality epoxy resin insulation.

General Specifications:

Compliance with standards such as IEC 61869, ANSI/IEEE C57.13, and NEMA.
Certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA.
Seismic design in accordance with ETGI-1.020, IEEE Std 693, and NCh2369.
Structural design follows ASTM A325, ANSI/AISC 360, and AWS D1.1.
High altitude correction capability up to 5000m as per IEC 61869 & IEEE C57.
High-quality epoxy resin insulation ensuring low partial discharge and high accuracy.

12kV Current Transformer (Indoor Type):

Rated current ratios range from 10-200/5 A.
Accuracy classes include combinations like 0.2(S)/0.2(S), 0.2(S)/0.5, and 0.2(S)/10P.
Rated output varies with a maximum of 20 VA.
Short-time thermal current and dynamic current ratings are specified for different configurations.

24kV Current Transformer (Indoor Type):

Rated current ratios range from 15-30/5 A to 1250-2500/5 A.
Accuracy classes include combinations like 0.2(S)/0.5/10P and 0.5/10P/10P.
Rated output and thermal current ratings are specified for various configurations.

36kV Current Transformer (Indoor Type):

Rated current ratios range from 20-200/5 A to 2000-2500/5 A.
Accuracy classes include combinations like 0.2(S)/0.2(S) and 0.2(S)/0.5/10P.
Rated output and thermal current ratings are specified for various configurations.

Residual Current Transformer (RCT):

Rated voltage is 0.72 kV with various rated ratios and accuracy classes.
Rated output ranges from 0.5 to 15 VA depending on the configuration.

Bushing Current Transformer (BCT):

Rated current ratios range from 50/5 A to 2500-3000/5 A.
Accuracy classes include combinations like 0.2(S)/0.2(S) and 0.2(S)/0.5/10P.
Rated output and thermal current ratings are specified for various configurations.

Outdoor Type Transformers:

Specifications for 12kV, 24kV, and 36kV outdoor transformers are similar to indoor types but adapted for outdoor conditions.
Rated current ratios, accuracy classes, and thermal current ratings are provided for each voltage level.

Catalog excerpts

Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-1

Power Transmission & Distribution One stop equipments solution Dry Type Current Transformer

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Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-2

12kV Current Transformer (Indoor type) General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 12kV Epoxy Resin Current Transformer (Indoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

Open the catalog to page 2

Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-3

24kV Current Transformer (Indoor type)General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 24kV Epoxy Resin Current Transformer (Indoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang,...

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Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-4

36kV Current Transformer (Indoor type) General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 36kV Epoxy Resin Current Transformer (Indoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-5

Residual Current Transformer (RCT) General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy Residual Current Transformer (RCT) Rated Voltage(kV) Rated ratio(A) Accuracy class Rated output(VA) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930...

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Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-6

• 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy Bushing Current Transformer (BCT) 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 Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-7

12kV Current Transformer (Outdoor type) General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 12kV Epoxy Resin Current Transformer (Outdoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

Open the catalog to page 7

Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-8

24kV Current Transformer (Outdoor type) General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 24kV Epoxy Resin Current Transformer (Outdoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

Open the catalog to page 8

Dowei Electric Dry Type Current Transformer RCT,BCT,LZZW-12,LZZW-24,LZZW-36-9

36kV Current Transformer (Outdoor type)General Description: • IEC 61869, ANSI/IEEE C57.13, 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 61869 & IEEE C57, ~ 5000m • High Quality Epoxy Resin Insulation, Low partial discharge, High accuracy • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 36kV Epoxy Resin Current Transformer (Outdoor type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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