IUG11-1-65-20.0-91

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Circuit breakers are one of the most important components in electrical system. They are designed to protect electric circuits from over current and overload, and to shutdown power to prevent fire or damage to the electrical system and the equipment.

IUG11-1-65-20.0-91 is a type of medium voltage circuit breaker. It is a three-phase breaker which can disconnect the three-phase electrical lines. It is mainly used to protect power distribution systems and transmission lines in electrical power grids. The model number IUG11-1-65-20.0-91 refers to the type of machine. IUG stands for indirect operating vacuum breaker, 11 refers to three-phase, 1 refers to manually operated, 65 refers to rated voltage of 6.5 kV, 20.0 refers to rated current of 20 A and 91 refers to the type of housing.

To understand the working principle of IUG11-1-65-20.0-91, let\'s first look at the internal structure of the circuit breaker. At the center of the circuit breaker, there is a set of contacts, the “working contacts”. When the circuit breaker is open, the contacts are separated and no current flows through the circuit, while when the circuit breaker is closed, the contacts come together and current will flow. In addition, there is a mechanical operating mechanism connected to the contacts, which will open and close the contacts. The main components of the mechanical operating mechanism include a spring, a motor, and an actuator.

When current flows through the IUG11-1-65-20.0-91, it will act as an overload protection device. If the current exceeds the rated value of 20A, the spring will store the energy under the action of the motor, and the actuator will

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