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Dowei Electric
Dowei Electric Power transformer DL,ZGS-D

Dowei Electric Power transformer DL,ZGS-D

Product catalog summary

General Description:
The document provides specifications for single-phase transformers manufactured by Ningbo Dowei Electric Co., Ltd. These transformers comply with international standards such as IEC 60076, ANSI/IEEE Std C57.12, and NEMA. They are certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. The transformers use mineral or vegetable oil (FR3) and are free of PCBs. They are designed for seismic conditions and high altitudes up to 5000 meters.

Product Scope:
The transformers are available in various capacities ranging from 10 kVA to 167 kVA. High voltage (HV) ratings range from 4160GrdY/2400 to 34500GrdY/19920, while low voltage (LV) ratings include 240/120, 480/240, and 277. They feature secondary interrupters for fault and overload protection, internal high-voltage expulsion fuses, and external low-voltage surge arresters. The transformers are completely self-protected (CSP) and comply with Department of Energy (DOE) standards.

Typical Specifications:
The document provides detailed specifications for both overhead and pad-mounted distribution transformers. For overhead transformers, the no-load and on-load losses, dimensions, and weights are specified for each capacity. For pad-mounted transformers, the primary voltage ranges from 2400 to 19920 V, and the secondary voltage ranges from 120 to 600 V. They include radial and loop feed arrangements, dead front HV terminals, Bay-O-Net expulsion fuses, secondary breakers with weak links, and under-oil high-voltage MOV arresters.

Key Data from Tables:
The tables in the document list the rated capacities, voltage and tapping ranges, and losses for each transformer type. For example, a 10 kVA overhead transformer has a no-load loss of 12 W and an on-load loss of 45 W, with dimensions of 430 mm width, 530 mm depth, and 760 mm height, and a total weight of 105 kg. Similarly, a 167 kVA pad-mounted transformer has a no-load loss of 455 W and an on-load loss of 1410 W.

Catalog excerpts

Dowei Electric Power transformer DL,ZGS-D-1

Power Transmission & Distribution One stop equipments solution Single Phase Transformer

Open the catalog to page 1

Dowei Electric Power transformer DL,ZGS-D-2

Single Phase Overhead Transformer General Description: • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Mineral Oil / Vegetable Oil (FR3), Free PCB • 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 Product Scope: • Secondary interrupter for fault and overload • Internal high-voltage expulsion fuse • External low-voltage surge arrester • Completely self protected (CSP) Typical Specification: Single Phase Overhead Transformer Rated Voltage and tapping range(kV) Loss (W) Overall Dimension...

Open the catalog to page 2

Dowei Electric Power transformer DL,ZGS-D-3

Single Phase Pad-mounted Distribution Transformer General Description: • IEC 60076, ANSI/IEEE Std C57.12, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Mineral Oil / Vegetable Oil (FR3), Free PCB • 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 • Radial & loop feed arrangements • Dead front type of HV terminals • Bay-O-Net expulsion fuse • Secondary breaker with weak link • Under-oil high-voltage MOV arrester Single Phase Pad-mounted Distribution Transformer NINGBO DOWEI...

Open the catalog to page 3

Dowei Electric Power transformer DL,ZGS-D

Dowei Electric Power transformer DL,ZGS-D

Catalog excerpts

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