IEGF66-30298-443-V

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Circuit breakers are widely used in residential, commercial and industrial electrical systems for protecting electrical circuits and personnel from harm. IEGF66-30298-443-V circuit breakers are widely used for medium voltage system and rated voltage of 12kV and below.

The IEGF66-30298-443-V circuit breaker is composed of an arc-extinguishing chamber, a vacuum interrupter, an operating mechanism, and an auxiliary release. In the whole vacuum circuit breaker system, the operating mechanism, which is an electric motor, is made up of an operating motor, and when power is supplied, the drive motor automatically starts and controls the movement of the lever.

The vacuum interrupter is a kind of special vacuum vessel, which is composed of several parts, including contact and main body. The main body is made of high-strength insulating material, with a good seal and no oxygen in the space, which ensures reliable operation of the circuit breaker. The contacts of the interrupter are made of high-strength cobalt-based alloy with a high oxidation resistance. And between the two contacts, the arc can be extinguished quickly in the high vacuum atmosphere.

The IEGF66-30298-443-V circuit breaker can be used in various environmental and working conditions. The rated current of the circuit breaker is 2000A, and the rated provide breaking capacity is 31.5 kA. Its high breaking capacity means that it can provide good protection for electrical lines and equipment. Moreover, it is equipped with multiple protection functions, such as over-current, over-voltage, over-temperature and overload protection, which can avoid the consequences of reckless operations and operation failure.

The working principle of the IEGF66-30298-443-V circuit breaker is as follows: when a fault occurs in the circuit, the current rises sharply, and the start-up signal is sent to the operating mechanism through the current transformer. Then the opening signal is sent to the operating mechanism, and the drive motor drives the operating mechanism to move the lever according to a certain angle. The movement of the lever is transmitted to the vacuum interrupter through the connecting rod, and finally the contacts of the vacuum interrupter are opened, so as to complete the operation of the circuit breaker. After the tripping, the drive motor starts to reset the lever of the operating mechanism, and the circuit breaker is put into the original closing position.

In conclusion, the IEGF66-30298-443-V circuit breaker is an efficient protection device with multiple protection functions, which is widely used in the medium voltage system and the rated voltage of 12kV and below. It has a reliable operation, and its working principle is that when a fault occurs, the drive motor drives the operating mechanism to move the lever according to a certain angle, so as to break the circuit and protect the safety of electrical lines and equipment.

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