FORBETTRAD SEGREGERAD FASJEMFORELSERELEAPPARAT

A reliable segregated phase comparison relaying apparatus for protecting a polyphase transmission line in which the phase conductors subjected to a ground or a residual fault may be easily detected and the fault current interrupted without a reduction in the security of the non-faulted phase conduct...

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Bibliographic Details
Main Author HINMAN JR W L
Format Patent
LanguageSwedish
Published 28.07.1975
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:A reliable segregated phase comparison relaying apparatus for protecting a polyphase transmission line in which the phase conductors subjected to a ground or a residual fault may be easily detected and the fault current interrupted without a reduction in the security of the non-faulted phase conductors and in which the phase comparison function can be immediately interrupted as, for example, due to a complete or partial loss of signal while still maintaining a secure unblock tripping in the event of the occurrence of a fault during this interruption.
Bibliography:Application Number: SE19750000550