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Home / Technical Articles / The logic behind switchgear interlocking systems in substations

What’s the purpose of interlocking? Switchgear interlocking is installed to protect both the equipment and the operator from dangerous situations caused by incorrect equipment operation. It can be categorized as…

The logic behind switchgear interlocking systems in substations
The logic behind switchgear interlocking systems in substations (on photo: Siemens GIS NXPlusC circuit-breaker panel with interlocking system)

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Edvard Csanyi

Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry facilities. Professional in AutoCAD programming.

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