Surge limiters are used on IT networks and installed at the output of the MV/LV transformer.
They protect ungrounded networks from overvoltages, that can be due to:
• internal breakdown of the MV/LV transformer
• lightning strikes on the upstream MV network
These overvoltages could have serious consequences and damage devices connected to the grid. The cardew will allow high energy overvoltages to flow to the earth, hence protecting the downstream
ungrounded network.
They protect ungrounded networks from overvoltages, that can be due to:
• internal breakdown of the MV/LV transformer
• lightning strikes on the upstream MV network
These overvoltages could have serious consequences and damage devices connected to the grid. The cardew will allow high energy overvoltages to flow to the earth, hence protecting the downstream
ungrounded network.
Released for:Schneider Electric South Africa
