Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145

Product catalog summary

Overview: The document provides detailed specifications for various oil type current transformers manufactured by Ningbo Dowei Electric Co., Ltd. These transformers are designed for power transmission and distribution applications and comply with international standards such as IEC 61869, ANSI/IEEE C57.13, and NEMA.

General Specifications: All transformers feature high-quality paper-oil insulation, are hermetically sealed, and use mineral oil without PCBs. They are designed to withstand seismic activities and high altitudes up to 5000 meters. The transformers are certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA.

Transformer Types and Specifications:

36kV Hair-pin Type: Maximum system voltage of 40.5kV, rated primary current from 5 to 200A, and secondary current of 5 or 1A. Accuracy classes include 0.2 or 0.2S for measuring and 5P or 10P for protection.
72.5kV Hair-pin Type: Maximum system voltage of 72.5kV, rated primary current of 2 x 25A, and secondary current of 5 or 1A. Similar accuracy classes as the 36kV type.
123kV Hair-pin Type: Maximum system voltage of 126kV, rated primary current of 2 x 25A, and secondary current of 5 or 1A.
145kV Hair-pin Type: Maximum system voltage of 145kV, rated primary current of 2 x 25A, and secondary current of 5 or 1A.
245kV Hair-pin Type: Maximum system voltage of 252kV, rated primary current of 2 x 100A, and secondary current of 5 or 1A.
362kV Hair-pin Type: Maximum system voltage of 362kV, rated primary current of 2 x 200A, and secondary current of 5 or 1A.
36kV Top-core Type: Similar specifications to the hair-pin type but with a different core design.
72.5kV Top-core Type: Similar specifications to the hair-pin type but with a different core design.
123kV Top-core Type: Similar specifications to the hair-pin type but with a different core design.
145kV Top-core Type: Similar specifications to the hair-pin type but with a different core design.
245kV Top-core Type: Similar specifications to the hair-pin type but with a different core design.

Key Features: The transformers are designed for high accuracy and reliability, with special accuracy classes such as PR, PX, PXR, TPX, TPY, TPZ, or C 100-800 (IEEE). They are suitable for various protective and measuring applications in power systems.

Catalog excerpts

Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-1

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

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-2

36kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 36kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-3

72.5kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 72.5kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-4

123kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 123kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-5

145kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 145kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-6

245kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 220kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-7

362kV Current Transformer (Hair-pin 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 362kV Oil Type Current Transformer (Hair-pin type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-8

36kV Current Transformer (Top-core 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 36kV Oil Type Current Transformer (Top-core type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-9

72.5kV Current Transformer (Top-core 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 72.5kV Oil Type Current Transformer (Top-core type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone,...

Open the catalog to page 9

Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-10

123kV Current Transformer (Top-core 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 123kV Oil Type Current Transformer (Top-core type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

Open the catalog to page 10

Dowei Electric Oil Type Current Transformer LB6-36,LB7-72.5,LB7-123,LB7-145-11

145kV Current Transformer (Top-core 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 Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed • Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc.. 145kV Oil Type Current Transformer (Top-core type) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo,...

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