UPGF66-30514-25 Circuit Protection

Circuit breakers are insulation devices used to protect electrical systems and components against electric shocks and possible long-term overloads and damages caused by overloads. UPGF66-30514-25 is one of the circuit breakers used in the protection of lines and devices in the electrical engineering system, and is widely used in transformers, high voltage power lines, generators, industrial facilities, etc.

UPGF66-30514-25 is a three-phase AC high-voltage insulation circuit breaker with insulation levels up to 44 kV. It is suitable for three-phase AC power frequency of 50 Hz and under normal conditions, the rated voltage of which can range from 6kV to 40.5kV. This product has great safety performance and outstanding mechanical and electrical features, and can be remotely controlled, making it suitable for various operating conditions.

The trip mechanism of the UPGF66-30514-25 circuit breaker consists of an electromagnetic, thermal or hydraulic mechanism, depending on the configuration of the device. The operating mechanism is composed of different parts and directs the necessary means to achieve the required short-circuit breaking performance. When the device is connected to the power grid, an arcing is generated between the contacts during the electric arc process, and current is interrupted when the contacts separate from each other.

The trip mechanism of UPGF66-30514-25 uses a hydraulic-magnetic system that can be activated by the current or the thermal energy of the electric arc caused by the circuit turning off. The magnetic field is generated through the operating coil, causing the contact armature to be attracted inward and contact is interrupted. The hydraulic-magnetic system of this circuit breaker can be divided into two parts: the armature part and the mechanism part. The armature is responsible for the mechanical release of the contacts, and the mechanism part is responsible for controlling the opening and closing of the contacts.

The UPGF66-30514-25 has a built-in spring-loaded mechanism to ensure that the system is open and ready for operation within a certain period of time. The device also has an adjustable reaction time and adjustable current limiting protection to protect and limit current overloads in the system. Overload protection can be adjusted by means of an adjusting device to protect the system from damage.

The UPGF66-30514-25 circuit breaker is mainly used for the protection of lines and devices in the electrical engineering system. It is manufactured with reasonable structure and high insulation level, which ensures reliable operation and protection for the power system. The device is suitable for various operating conditions and is widely used in transformers, high voltage power lines, generators, industrial facilities, etc.