China Electronic Current Adjustable Circuit Breaker is an advanced electrical protection device that plays an important role in the power system. The following is a related introduction:

### Working Principle
Electronic current adjustable circuit breakers are usually composed of current transformers, self-powered power supply circuits, data processing circuits, control units and actuators. The current transformer is connected in series to the working line to sense the load current in real time and convert the current signal into an electrical signal that can be processed by the electronic circuit board assembly. The electronic circuit board assembly processes the current signal, including amplification, filtering and other operations, and then compares, analyzes and calculates it with the pre-set current threshold. When the processed current signal reaches or exceeds the set value, the electronic circuit board assembly will drive the release to disconnect the moving and static contacts of the circuit breaker, cut off the circuit, and realize overload protection and other functions.

### Features and Advantages
– **High-precision current detection**:
The use of electronic technology and intelligent algorithms can accurately measure the current in the circuit with high measurement accuracy and relatively little influence by ambient temperature.
– **Rich protection functions**:
It has many protection functions such as long-delay inverse time protection, short-delay inverse time protection, short-circuit instantaneous protection, ground fault protection, etc., and can be equipped with communication to realize the “four remote” functions of remote signaling, remote control, remote measurement, and remote adjustment. It also has additional functions such as thermal memory, pre-alarm, and fault query.
– **Adjustable current**:
According to the actual circuit load conditions, the protection value can be easily set to achieve precise control and protection of different current values.
– **Remote monitoring and management**:
It integrates remote operation and monitoring functions, and can transmit equipment status, location, opening and closing instructions and other information in real time, providing managers with convenient remote management methods, improving management efficiency, and reducing operation and maintenance costs.

### Application scenarios
– **Industrial field**:
In the power distribution system of the factory, it is used to protect various electrical equipment such as motors, transformers, and production lines to ensure the stable operation of industrial production. For example, in the automated production line of new energy vehicle manufacturing, it can provide high-precision current protection for key equipment such as battery test benches and precision assembly robots.
– **Commercial field**:
Applicable to commercial places such as shopping malls, hotels, office buildings, etc., to protect various electrical equipment such as lighting equipment, air conditioning systems, elevators, etc. in their electrical systems, and prevent electrical accidents caused by overload, short circuit and other faults.
– **Family residence**:
It can be used to protect household circuits, prevent overload, short circuit and other problems caused by improper use of electrical appliances or circuit failures, ensure the safety of household electricity use, and can also be combined with smart home systems to realize intelligent power management.
– **Other fields**:
In some places with high requirements for power supply stability and safety, such as hospitals, data centers, transportation hubs, etc., electronic current adjustable circuit breakers have also been widely used to provide reliable power protection for key equipment in these places.