1115-F111-P1T2-2A

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Circuit breakers are essential components of power grids to protect electrical equipment when fault currents exceed safety limits. The 1115-F111-P1T2-2A is an example of a circuit breaker. It is installed in alternating current (AC) power systems and is mainly used as a fault current limiter and overcurrent protector. Additionally, the breaker can be used to supplement the main overcurrent protector and achieve better coordination.

Application Field

The 1115-F111-P1T2-2A has a voltage rating of 1,100 volts AC and is therefore suitable for use in medium-voltage AC power systems. It has a current rating up to 2,000 amperes and an interrupting rating up to 40 kAic at 250 volts AC. This unit can be mounted in a variety of conditions from low temperature and humidity to severe vibration and shock, making it well-suited for applications in power systems under harsh environment. It also has a frequently-used interrupting rating of 5 kAic at 250 volts AC which is suitable for majority of air switch applications.

Working Principle

When a fault current is detected, the 1115-F111-P1T2-2A circuit breaker quickly trips and interrupts the current by opening its contacts. The basic working principle of this breaker is the same as that of other circuit breakers. It is composed of two combinations of contact structures and mechanical systems, which are connected in series. When normal operations are required, it keeps its contacts open, allowing the electrical current to flow freely. When an overcurrent or short circuit is detected, the contacts quickly close and the mechanical system trips the circuit breaker.

The 1115-F111-P1T2-2A has the advantage of having a high-speed tripping system. It is able to quickly break the circuit in just a few milliseconds when a fault current is detected. The speed of the high breaking capacity makes it suitable for use in power systems with high fault current levels, such as in industrial settings.

In addition, the 1115-F111-P1T2-2A has a low temperature rise that allows it to operate at high currents without significantly increasing its temperature. Its insulation system also features a compact structure and reliable self-cleaning effect, so it can provide good dielectric strength and remain unaffected by the environment.

Conclusion

The 1115-F111-P1T2-2A circuit breaker is a reliable and robust component for medium-voltage AC power systems. It is well-suited for applications in harsh environments, as it can handle high fault currents and has a low temperature rise. Additionally, its fast tripping system and insulation insulation system offer good dielectric strength. Therefore, it is an ideal choice for protecting electrical equipment.

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