Copyright 2009 ArresterWorks Jonathan Woodworth www.ArresterWorks.com

Arrester Selection Process

Arrester Is Selected

Syst

em

Par

amet

ers

Arre

ster P

aramete

rs

Select Arrester TypeArrester Location Arrester Types

1

Select Arrester AC Rating System Voltages and Neutral Configuration

Arrester MCOV and TOV Capability

2

Check Margin of ProtectionBIL, BSL, CWW, CFO FOW, LPL, SPLLead Length

3

Check Energy HandlingLightning IntensityAnd Switching SurgeEnergy

TLD, High Current Short Duration

Capability

4

Check Failure Mode System Fault CurrentAvailability and Post BIL

Arrester Short Circuit Capability and

Disconnector Operation

5

Select and Check Mounting Installation ParametersClearances, Cantilever Separation Distance, Lead Length

Arrester Creep, Strike, Margin of Protection Re-

check

6