Type of oil circuit breaker
There are several types of oil circuit breakers, which can be classified based on their design, operating mechanism, and application. Here are some common types of oil circuit breakers:
- Live Tank Oil Circuit Breaker (LT): In this type, the breaker and the transformer are immersed in oil. The breaker is live, meaning it is energized with electrical current, and the oil provides insulation and cooling.
- Dead Tank Oil Circuit Breaker (DT): In this type, the breaker is not immersed in oil, but the oil is contained in a separate tank. The breaker is de-energized, and the oil provides insulation and cooling.
- Self-Blast Oil Circuit Breaker: This type uses compressed air or gas to blast the arc into the oil, which extinguishes it. This design is used in high-voltage applications.
- Puffer Oil Circuit Breaker: This type uses a puffer mechanism to inject oil into the arc path, which extinguishes it. This design is used in medium-voltage applications.
- Oil-Filled Circuit Breaker (OFCB): This type is similar to a live tank breaker, but the breaker is not live. The oil provides insulation and cooling, and the breaker is de-energized.
- Oil-Insulated Switchgear (OIS): This type is a compact, self-contained unit that includes a breaker, disconnect switch, and busbars. The oil provides insulation and cooling.
- Oil-Filled Busbar (OFB): This type is a busbar system that is filled with oil to provide insulation and cooling. The breaker is typically a separate unit.
- Oil-Filled Transformer (OFT): This type is a transformer that is filled with oil to provide insulation and cooling. The breaker is typically a separate unit.
- Oil-Filled Switchgear (OFS): This type is a compact, self-contained unit that includes a breaker, disconnect switch, and busbars. The oil provides insulation and cooling.
These are some of the common types of oil circuit breakers, and the specific design and application may vary depending on the manufacturer and the intended use.