Katkestuslülitite

Katkestuslülitite, commonly known in English as disconnect switches or isolators, are a type of electrical switch used to disconnect electrical equipment from a power source. Unlike circuit breakers, which are designed to interrupt fault currents, katkestuslülitite are intended for use in a de-energized state or to isolate a circuit for maintenance purposes. They provide a visible means of isolation, ensuring that a circuit is completely separated from any voltage.

The primary function of a katkestuslüliti is to prevent the accidental energization of equipment that is undergoing repair or inspection. This is crucial for the safety of personnel working on the electrical system. They are typically operated manually and are designed to be locked in either the open or closed position to prevent unauthorized operation.

Katkestuslülitite are found in a wide range of electrical applications, from low-voltage distribution panels to high-voltage substations. In industrial settings, they are used to isolate machinery and process equipment. In power transmission and distribution networks, they are essential for maintaining grid reliability and allowing for safe maintenance of lines and substations. Their robust construction allows them to withstand the environmental conditions of their installation location. The design often includes interlocks to ensure proper operating sequences.