General Electric Company · General Electric Company · leaf 16
, as their frames are alwaysconnected to ground. While theinsulation of our railwav motors isrequired to withstand in test an alternating voltage exceeding 2000volts, a lightning arrester for rail-way circuits should provide forgrounding potentials considerablylower than that used in the… … In series with the spark gap isa low non-inductive resistancethrough which the generator cur-rent passes in following the light-ning discharge to ground. Theresistance limits the current andthus reduces the tendency to burn the spark terminals andincrease the spark gap.
Lightning arresters · Ligtning protection for buildings · Lightning protection for structures · Lightning protection surge arresters and suppressors
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