*mydirectindustry

Catalogs
Dowei Electric
Dowei Electric Semi-Pantograph Disconnector GW6

Dowei Electric Semi-Pantograph Disconnector GW6

1 / 2 PagesView full catalog

Dowei Electric Semi-Pantograph Disconnector GW6

Product catalog summary

General Description:

The Semi-Pantograph Disconnector adheres to international standards such as IEC 62271, ANSI/IEEE Std C37, and NEMA.
It is certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA.
Designed for seismic conditions following ETGI-1.020, IEEE Std 693, and NCh2369.
Structural design complies with ASTM A325, ANSI/AISC 360, and AWS D1.1.
High altitude correction is applicable up to 5000m as per IEC 62271 & IEEE C37.
Features include copper and silver moving contacts, insulator double row ball bearings, and adjustable open and close position stops.

Typical Specification:

The disconnector is available in models GW6-126, GW6-252, and GW6-550, supporting rated voltages of 126kV, 252kV, and 550kV respectively.
All models operate at a rated frequency of 50 Hz.
Rated current capacity is 3150A for GW6-126 and 4000A for GW6-252 and GW6-550.
Rated short-time withstand current and duration are 40kA/3s for GW6-126 and 63kA/3s for GW6-252 and GW6-550.
Rated peak withstand current is 100kA for GW6-126 and 160kA for GW6-252 and GW6-550.
Rated short-time power frequency withstand voltage to earth is 230kV for GW6-126, 460kV for GW6-252, and 740kV for GW6-550.
Rated lightning impulse withstand voltage to earth is 550kV for GW6-126, 1050kV for GW6-252, and 1675kV for GW6-550.
Rated switching impulse withstand voltage to earth is applicable only for GW6-550 at 1300kV.
Switching capacitive current is 1A for GW6-126 and GW6-252, while switching inductive current is 0.5A for both models.
Rated busbar transferring current is consistent at 1600A across all models.

Catalog excerpts

Dowei Electric Semi-Pantograph Disconnector GW6-1

Power Transmission & Distribution One stop equipments solution Semi-Pantograph Disconnector

Open the catalog to page 1

Dowei Electric Semi-Pantograph Disconnector GW6-2

Semi-Pantograph Disconnector General Description: • IEC 62271, ANSI/IEEE Std C37, 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 62271 & IEEE C37, ~ 5000m • Copper and silver moving contact • Insulator double row ball bearings • Adjustable open and close position stops 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 2

All Dowei Electric catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list