What is technology to use with each surge arrester type?
Surge Arrester have 3 technologies below
- Spark Gap
- The gas discharge tube (controlled or not controlled) or GDT
- The varistor (zinc oxide varistor) or MOV (metal oxide varistor)
The table below shows the characteristics and the arrangements of 3 commonly used technologies.
- Spark Gap
- The gas discharge tube (controlled or not controlled) or GDT
- The varistor (zinc oxide varistor) or MOV (metal oxide varistor)
The table below shows the characteristics and the arrangements of 3 commonly used technologies.
Released for: Schneider Electric Thailand






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