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IEC Class 3 up to 362 kV
IEC Class 2 up to 145 kV
IEC Class 3 up to 170 kV
IEC Class 3 up to 420 kV
IEC Class 4 up to 550 kV - 1387
IEC Class 3 up to 362 kV
Protection of transformers, switchgears and plants against atmospheric and switching overvoltages.
IEC Class 2 up to 145 kV
Protection of transformers, switchgears and plants against atmospheric and switching overvoltages.
IEC Class 3 up to 170 kV
Protection of transformers, switchgears and plants against atmospheric and switching overvoltages.
IEC Class 3 up to 420 kV
Protection of transformers, switchgears and plants against atmospheric and switching overvoltages.
IEC Class 4 up to 550 kV - 1387