LW8-40.5 33KV 36KV SF6 Circuit Breaker Control And Protection

Drawings

1. Environmental Condition

• Ambient temperature:-30℃~+40℃
• Altitude:≤3000m
• Wind pressure:≤700Pa
• Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value ≤1.8KPa
• Air pollution level:Ⅲ
• Earthquake intensity:≤8 degree
• The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

2. Technical Data

3. Application

Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments, LW8-40.5 type outdoor SF6 circuit breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system. It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.

4.Standards

• GB1984
• GB/T28001-2011 idt OHSAS18001:2007
• GB/T24001-2004 idt ISO14001:2004

5. Features

• Excellent breaking performance, short burning arc time, long life;
• Mechanical life of more than 3000 times;
• Operation frequently, each can be installed 12 current transformers;
• New type SF6 MKZ pointer type density meter, pressure gauge reading is not affected by temperature changes;