Meltable conductor to be used in series with voltage suppressors

Details Meltable conductor to be used in series with voltage suppressors Meltable conductor to be used in series with voltage suppressors

1988-05-12

1990-05-01

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361104, 361111, 337290, H02H 320

Patent

active

049223666

ABSTRACT:
An electrically conductive meltable conductor that is used in series with a voltage surge protector in AC power lines is disclosed. The meltable conductor must be able to keep a substantially constant resistance when subject to transient high voltage surges and momentary line overvoltages of twice the rated line voltage for periods of one full cycle. The meltable conductor must also actually melt within a view seconds after steady state line voltage is applied. Such a conductor has a resistance between 0.8 milliohms and 14 milliohms. This conductor allows detection of a short circuit breakdown condition in a voltage surge suppressor without substantially decreasing the life-span of the voltage surge suppressor.

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