132kV SF6 Circuir Breaker Application
Actastheprotectingandcontrollingunitforgridequipmentsandindustrialminingenterprises’equipments,LW8A-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.
110kV-132kV Circuit Breaker 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;
Environmental Condition
Ambienttemperature:-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
110kV SF6 Brealer Main technical data
| No. | Item | Unit | Data |
| 1 | Rated voltage | KV | 110 |
| 2 | Rated current | A | 2000/3150 |
| 3 | Rated frequency | HZ | 50 |
| 5 | Rated short circuit breaking current | KA | 31.5/40 |
| 6 | Rated short-circuit current(peak) | KA | 100 |
| 7 | Rated short-circuit with stand current | KA | 31.5/40 |
| 10 | Rated short circuit closing current(peak) | KA | 100 |
| 13 | Electrical lifeofrated short circuit breaking current | times | 20 |
| 14 | Rated short circuit duration | s | 4 |
| 15 | Rated line charging close current | A | 31.5 |
| 16 | Rated operation sequence | O-0.3s-CO-180s-CO | |
| 17 | Split time | ms | ≤60 |
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