LW8-40.5 Outdoor Sulfur Hexafluoride Circuit Breaker

Overview:

LW8-40.5 Outdoor Sulfur Hexafluoride Circuit Breaker a three-phase AC 50Hz outdoor high voltage electrical equipment; suitable for the control and protection of rated voltage 40.5kv transmission and distribution system; can also be used to contact circuit breakers and open and close capacitor banks; and can be attached to the current transformer for measurement and protection

Structure: 

LW8-40.5 Outdoor Sulfur Hexafluoride Circuit Breaker is a porcelain column structure, three-phase separate, all have independent pressure gas type arc extinguishing chamber, and the three-phase gas is connected through the copper pipe. 

LW8-40.5 Outdoor Sulfur Hexafluoride Circuit Breaker is composed of pillar porcelain bottle, current transformer, arc extinguisher, adsorbor, transmission box, connecting rod, chassis and spring actuation mechanism.

Advantage:

a. Excellent breaking performance, the use of compressed air arc extinguisher, short arc burning time, long electrical life;

b. Under the rated voltage, 25 kA is continuously interrupted 20 times without maintenance, and the sulfur hexafluoride gas is not replaced;

c. Reliable insulation, air pressure at zero gauge pressure can withstand 40.5kv 10 minutes;

d. High mechanical reliability, strong closing ability, frequent operation;

e. Opening and closing capacitor bank current 400 amps without re-ignition;

f. Cut the long line 25, 50 km without rekindling;

g. Simple structure, small size, no maintenance cycle is long.

Normal use conditions:

Altitude:not more than 2500; 

Rice; High prototype 4000 meters;

Ambient temperature: -30 °C ~ +40 °C (special requirements -40 °C - +40 °C);

Relative humidity: daily average is not more than 95%, monthly average is not more than 90% (25 °C);

Wind speed: not more than 35 m / s; Contamination grade III;

The climbing distance of the porcelain sleeve is 1050mm (1320mm) (the nominal creepage ratio is not less than 25 mm/kv).

Sunshine: 0.1w/cm2 ;

Ice covering: 10mm (max)

Seismic conditions: vertical acceleration 0.3g; 

Horizontal acceleration 0.15g(max)

There are no flammable substances, explosion hazards, chemical corrosion and severe vibrations.

The main technical parameters of circuit breakers：

Product outline and installation dimensions：

（Unit:mm）

Shaanxi Huadian Electric Co., Ltd.  is located in Baoji High-tech Development Zone, Shaanxi Province, China. It is a modern high-tech enterprise specializing in the production of vacuum circuit breakers integrating R&D, manufacturing and sales.

Shaanxi Huadian Electric Co., Ltd.  provides customers with first-class products and services, creating value for customers and the country. 

Shaanxi Huadian products have been widely used in power plants, metallurgy, petrochemicals, railways, mines, radio and television, urban construction and rural power grid reconstruction projects, and are well received by users for their high-quality products and services.

Certifications

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