| UltraSIL™ Transmission Line Surge Arresters
Cooper Power Systems UltraSIL Transmission Line Surge Arresters provide lightning protection for transmission and distribution systems.
The Backflash
On shielded transmission lines or under-built distribution circuits, the arrester prevents tower-to-phase insulator back-flashovers during a lightning strike. On unshielded subtransmission or distribution circuits, the arrester prevents phase-to-ground flashovers.
Click here to see how this backflash can occur.
How Transmission Line Arresters Work
Transmission Line Surge Arresters conduct lightning surges around the protected insulator so that a lightning flashover is not created. They are designed to be installed functionally in parallel with the line insulator. The arrester conducts the lightning surges around the protected insulator so that a subsequent 60 Hz fault on the circuit is not created. The arrester becomes a low ohmic path for the surge as voltage across it increases. When the voltage returns to normal, the arrester once again returns to a high ohmic device with only microamps of leakage current.
Click here to see how transmission line arresters work.
Benefits of Transmission Line Surge Arresters
Lowers first cost of new or transmission line upgrades by making construction more compact and transmitting more energy in the same right of way.
- Reduces the height of transmission lines by eliminating shield wire.
- Improves outage statistics by eliminating backflashovers from the tower ground lead to the phase conductor.
- Allows for economical installations.
- Line and ground hardware options allow for custom configurations.
Click here to find out how transmission line arresters can save you money.
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