ACB

From 800 to 6300 A high current air circuit-breaker From 800 to 6300 A high current air circuit-breaker ACB stands for Air Circuit Breaker. It's a type of circuit breaker that operates in air as the medium for arc extinction. Here are some key features and functions of ACBs: High Current Handling: ACBs are designed to handle high currents, typically ranging from hundreds to thousands of amps. They are commonly used for protecting electrical circuits with large loads, such as industrial machinery and equipment. Arc Extinction: When a fault occurs in an electrical circuit, such as a short circuit or overload, an arc is generated. ACBs use various techniques to extinguish this arc effectively, ensuring safe interruption of the current flow. Trip Unit: ACBs are equipped with trip units that monitor the electrical parameters of the circuit, such as current, voltage, and frequency. When these parameters exceed pre-set thresholds, the trip unit activates the breaker, disconnecting the circuit and providing protection against faults. Adjustable Settings: Many ACBs offer adjustable settings for parameters such as trip current and time delay. This flexibility allows users to customize the protection settings according to the specific requirements of the electrical system. Protection Coordination: ACBs can be coordinated with other protective devices in the electrical distribution system, such as fuses and relays, to ensure selective and coordinated tripping during fault conditions. This helps localize faults and minimize downtime. Remote Control and Monitoring: Some advanced ACBs come with features for remote control and monitoring, allowing operators to manage the breaker status, settings, and alarms from a central control room or via networked systems. Built-in Protection Functions: ACBs may include built-in protection functions such as short-circuit protection, overload protection, and ground fault protection, providing comprehensive protection for electrical circuits and equipment.

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