Store energy when closing the circuit breaker

How does a stored energy breaker work?

Stored energy breakers, often designated as "SE" on nameplates, use a motor circuit to charge large coil springs. Once charged and latched, a small solenoid or "latch release" can be engaged and then release the stored energy in the springs to quickly close the breaker.

How does a circuit breaker work?

to close the circuit breaker and when it needs to close rapidly. The two-step stored energy process is to charge the the breaker. It uses separate opening and because it permits the closing spring to be process. This allows for an open-close-open charged (or recharged) manually via a charging The motor can be operated remotely, allowing

How much power does a stored energy breaker use?

Many stored energy style mechanisms draw as little as 7 amps and allow for both AC or DC circuits to power the breaker. If AC power is used from the in-house service, a separate DC source is usually used so the breaker can be electrically tripped or shut off if the house power goes out.

What is a medium voltage stored energy breaker?

Medium voltage stored energy breakers include ITE/BBC/ABB HK series, GE Magneblast breakers with ML-11 through ML-13 mechanisms and then later Westinghouse DHP breakers. The use of a motor to charge the springs greatly reduces the need for large heavy sources of DC for control power.

How do solid-state circuit breakers work?

Solid-state circuit breakers rely upon turning off a semiconductor device connected in series with the load in the power distribution network. The on-state voltage drop for the solid-state device is an important consideration because it produces continuous power losses in the power distribution system.

How does a low voltage breaker work?

Once charged and latched, a small solenoid or "latch release" can be engaged and then release the stored energy in the springs to quickly close the breaker. Examples of low voltage breakers using this system would be the GE AK and AKR's, Westinghouse/Square D/Eaton DS series and ITE/BBC/ABB K-Line and LK series.