13

Surge Arresters

Thomas E. McDermott

Meltran, Inc.

13.1    Arrester Types and Auxiliary Equipment

13.2    Ratings and Tests

13.3    Selection by TOV

13.4    Selection by Energy Rating

13.5    Arrester Modeling

13.6    Applications

References

Surge arresters are shunt, nonlinear, resistive devices that are installed to limit transient overvoltages, thereby protecting equipment insulation. Sometimes they have been called “lightning arresters,” and this may be due to the fact that many years ago, surge arresters were tailored to protect against the surge front times typical of lightning. They were much less effective against steeper-fronted overvoltages, or against slow-front switching surges. However, the proper term is “surge arresters,” and ...

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