Today, most electronic current transformers used in high-voltage equipment come with either a low-voltage analogue interface or with a digital fibre optic interface as according to IEC61850-9-2LE. LE stands for "Light Edition" and refers to an implementation guideline issued by the UCA international user's group. The implementation defines a sensible subset of the vast range of IEC61850-9-2 options to ease implementation in electronic current and voltage transformers. Gas-insulated switchgear GIS (http://new.abb.com/high-voltage/gis )
High Voltage Products
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