![Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure 1 Circuit Breaker](https://peguru.com/wp-content/uploads/2019/08/Circuit-Breaker-1024x1024.jpg)
Purpose of circuit breaker
- Break the power flow
- Contain the arcing within its chamber and extinguish it
Where you install the circuit breakers and the quantity depends on the bus configuration, as seen below.
![Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure 2 circuit breaker install location in a ring bus station](https://peguru.com/wp-content/uploads/2019/09/Circuit-breaker-location-1-1024x523.png)
![Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure 3 Circuit breakers (in yellow boxes) in a breaker and a half substation.](https://peguru.com/wp-content/uploads/2019/09/Breaker-and-a-half-switching-station-1024x548.png)
What happens when you break a high voltage circuit without special provisions? Take a look below. Uncontrolled arcing is destructive and unsafe.
![Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure 4 Circuit Breaker: Learn the Purpose, Cost, and Lead Time to Procure 1](https://media.giphy.com/media/iGjLUUHfUVjRVQcN7Z/giphy.gif)
Cost of circuit breaker
- 765kV 3000amp 40KAIC live tank gas breaker: ~$800,000
- 500kV 3000amp 63KAIC dead tank gas breaker: ~$400,000
- 345kV 3000amp 63KAIC dead tank gas breaker: ~$200,000
- 230kV 3000amp 63KAIC dead tank gas breaker: ~$165,000
- 138kV 3000amp 63KAIC dead tank gas breaker: ~$80,000
- 69kV 3000amp 40KAIC gas breaker: ~$50,000
- 35kV 3000amp 40KAIC gas breaker: ~$35,000
- 15kV 1200amp 16KAIC vacuum breaker: ~$26,000
You may be interested in switching capacitive or inductive loads using Independent Pole Operating (a.k.a. zero
Lead time to procure circuit breaker
~6 months
Information on cost and lead-time are rough estimates – c