Enclosed over voltage suppressor for use as power line discharger, has two chambers, where compressible residual volume remains between casing and chambers, and connection electrodes connected with liquid metal portion

摘要

The suppressor has a current limiting unit with a different behavior having impulse current and power line series current load. The unit has a pressure insulating housing with two chambers, where liquid metal is placed in each chamber. Liquid metal fillings communicate over a channel and a compressible residual volume remains between a casing and the chambers. Two connection electrodes are connected with a liquid metal portion.