Sectionalizer control

Details Sectionalizer control Sectionalizer control

H - Electricity

02

H

348/18

H02H 3/07 (2006.01) H02H 3/06 (2006.01)

Patent

CA 2020977

A control circuit for a sectionalizer protection device is provided to alleviate the tendency of sectionalizers to identify some up-line problems as dawn-line problems. The control circuit includes means for preventing counting of spikes in the load current due to harmonic transients, means for preventing unsymmetrical fault clearing and means for restraining detection of up-line faults and identifying them as down-line faults.

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