Surge protector for a watthour meter
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United States of America Patent
Stats
-
Jan 25, 1994
Grant Date -
N/A
app pub date -
Oct 3, 1991
filing date -
Oct 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surge protector is provided for a multi-phase watthour meter. The surge protector allows all three phases to be protected using a single resistive block and ground strap. Separate first electrodes are connected to each phase of the circuit and each electrode is disposed adjacent one end of a different hole formed in the meter base. A second electrode is disposed at the opposite end of the holes and forms a tip at each hole, thereby forming separate spark gaps with each of the first electrodes. A resistive block mounted on the outboard side of the meter base is in surface contact with the second electrode and a single ground strap is in contact with the resistive block so as to ground the meter to its socket when arcing occurs in the spark gaps.
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