Through fault pressure filter for fault pressure relay

Details Through fault pressure filter for fault pressure relay Through fault pressure filter for fault pressure relay

1982-03-08

1984-03-06

Bryant, III, James E.

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

138 40, F15D 102

Patent

active

044348142

ABSTRACT:
Methods and apparatus are provided for attenuating through-fault pressure disturbances in fault relays for a liquid-filled transformer. The method comprises the interposition of a mechanical filter between the transformer and the relay for attenuating through fault pressure variations while passing internal pressure faults. The filter consists of a pressure attenuation passage having an optimum length to diameter ratio for attenuating higher frequency pressure oscillations in excess of 50 Hz.

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