Electrical overvoltage surge arrester with a long time constant

Details Electrical overvoltage surge arrester with a long time constant Electrical overvoltage surge arrester with a long time constant

1975-05-01

1976-06-29

Moose, Harry

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

315 36, 317 70, H02H 906

Patent

active

039671607

ABSTRACT:
The arrester includes a valve section made up of high current-voltage characteristic exponent metal oxide varistor valve blocks having a relatively high capacitance and a series gap section made up of simple gap units, the gap section carrying less than about one fifth of the total arrester voltage during a discharge. The valve blocks of the valve section are each provided with a parallel-connected bleeder resistor to adjust the time constant of the valve section so that the faces of the valve blocks are returned to a common potential within a time interval of between about one and about two milliseconds for allowing sufficient deionization of arc gases without degrading multiple lightning surge performance.

REFERENCES:
patent: 3320482 (1967-05-01), Sakshaug et al.
patent: 3859568 (1975-01-01), Sakshaug
patent: 3859569 (1975-01-01), Kresge

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