- Catalogs
- Dowei Electric
- Dowei Electric Live Tank Circuit Breaker LW25
- Company
- Products
- Catalogs
- News & Trends
- Exhibitions
Dowei Electric Live Tank Circuit Breaker LW25
1 / 2 PagesView full catalog
Dowei Electric Live Tank Circuit Breaker LW25
Product catalog summary
General Description:
The document outlines the specifications and standards for the Live Tank Circuit Breaker by Ningbo Dowei Electric Co., Ltd. It complies with international standards such as IEC 62271, ANSI/IEEE Std C37, and NEMA. The product is certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. It features seismic design in accordance with ETGI-1.020 and IEEE Std 693, and structural design following ASTM A325, ANSI/AISC 360, and AWS D1.1. The circuit breaker is suitable for high altitudes up to 5000 meters and offers high current switching capabilities.
The document outlines the specifications and standards for the Live Tank Circuit Breaker by Ningbo Dowei Electric Co., Ltd. It complies with international standards such as IEC 62271, ANSI/IEEE Std C37, and NEMA. The product is certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. It features seismic design in accordance with ETGI-1.020 and IEEE Std 693, and structural design following ASTM A325, ANSI/AISC 360, and AWS D1.1. The circuit breaker is suitable for high altitudes up to 5000 meters and offers high current switching capabilities.
Typical Specification:
The SF6 Gas Live Tank Circuit Breaker is available in voltage ratings from 40.5kV to 363kV. Key specifications include:
The SF6 Gas Live Tank Circuit Breaker is available in voltage ratings from 40.5kV to 363kV. Key specifications include:
- Rated voltage: 40.5 to 363 kV
- Rated frequency: 50/60 Hz
- Rated continuous current: 3150 to 4000 A
- Rated short circuit breaking current: 31.5/40 to 50 kA
- Rated short circuit making current: 80/100 to 125 kA
- Rated peak withstand current: 80/100 to 125 kA
- Short line fault breaking current: 36/30 to 45/37.5 kA
- Out of phase breaking current: 10 to 12.5 kA
- Rated power-frequency withstand voltage: 95 to 510 kV
- Lightning impulse withstand (BIL): 185 to 1175 kV
- Type of mechanism: Spring or Hydraulic
- Mechanical endurance: ≥5000 operations
- Rated operating sequence: O-0.3s-CO-180s-CO
- Close time: ≤100 ms
- Open time: ≤30 ms
- Breaking time: ≤60 ms (≤50 ms for 363 kV)
- Three phase operation/single phase: 3p/1p depending on model
- Rated SF6 gas pressure: 0.5 to 0.6 Mpa
- Weight: 1000 to 6600 kg
See more
Catalog excerpts
Power Transmission & Distribution One stop equipments solution Live Tank Circuit Breaker
Open the catalog to page 1
Rated voltage Rated frequency Rated continuous current Rated short circuit breaking current Rated short circuit making current Rated peak withstand current Short line fault breaking current Out of phase breaking current Rated power-frequency withstand Voltage Lightning Impulse withstand (BIL) Type of mechanism Mechanical endurance Rated operating sequence Close time Open time Breaking time Three phase operation / single phase Live Tank Circuit BreakerGeneral Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693,...
Open the catalog to page 2All Dowei Electric catalogs and technical brochures
Dowei Electric Line Trap LT3 Pages
Dowei Electric MV Cable XLPE3 Pages
Dowei Electric MV Motor TEFC3 Pages
Related Searches
- Electromotor
- Power supply unit
- DC power supply
- Electrical cable
- Transformer
- Alternating current motor
- Copper cable
- Concentration analyzer
- Monitoring analyzer
- Copper electrical cable
- Dry transformer
- Asynchronous motor
- Surge protector
- Liquids analyzer
- Power cable
- Electromotor for industrial applications
- Three-phase motor
- CE power supply
- Multi-strand cable
- Multi-wire electrical cable
*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.