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HV & MV/LV Power Distribution Equipment

MV & HV Disconnectors and Isolators

Off-load isolating devices providing a visible, rated isolating distance in air-insulated substations and switchyards. Available in single-, double-break and centre-break rotating configurations, with optional motor drives and interlocked earthing switches. Used for busbar sectionalising, feeder isolation and maintenance earthing on lines and transformer bays across MV distribution and HV transmission networks.

Voltage classHV up to 170 kV
Rating630–2500 A, up to 170 kV, short-time withstand 25–40 kA/1s (3s optional), peak withstand up to 100 kA
Insulation / mediumAir
StandardsIEC 62271-102, IEC 62271-1

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