Gapless discharge counter for lightning arresters

Details Gapless discharge counter for lightning arresters Gapless discharge counter for lightning arresters

1980-11-10

1982-07-06

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361118, 340647, 340650, 340653, 324 72, H02H 322

Patent

active

043386482

ABSTRACT:
A discharge counter and arrester current meter employs a zinc oxide disk in combination with a pair of bridge rectifiers to accurately determine surge arrester steady state current and to count the number of discharges occurring through a voltage surge arrester. The discharge counter and meter circuit, connected between the surge arrester and ground, monitors the steady state current by means of an ammeter and records the number of discharges by means of a capacitor, cyclometer coil, and a recorder. The meter circuit and the discharge counter are uniquely protected by a single zinc oxide disk during the discharge of high current surges.

REFERENCES:
patent: 3414813 (1968-12-01), Fraser
patent: 3443223 (1969-05-01), Kennon
patent: 3469188 (1969-09-01), Hall
patent: 4112418 (1978-09-01), Ishikawa et al.
patent: 4259666 (1981-03-01), Takahashi et al.

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