METALCLAD SWITCHGEAR ARC PROTECTION DEVICE

switchgear protection against short circuits accompanied by arcing. SUBSTANCE: device has measuring element that functions to check signal level proportional to light flux generated by electric arc caused by short circuit; measuring element has frequency-dependent component in its input section whic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SARRY S.V, KUCHERENKO A.P, MISNIKOVA L.A, NAGAJ V.I, RYBNIKOV A.S
Format:	Patent
Sprache:	eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	switchgear protection against short circuits accompanied by arcing. SUBSTANCE: device has measuring element that functions to check signal level proportional to light flux generated by electric arc caused by short circuit; measuring element has frequency-dependent component in its input section which forms, together with operating photosensor and control cable, low-frequency or band filter whose transmission gain depends on photosensor condition. EFFECT: improved response to short circuits enabling reliable elimination of various electromagnetic interferences. 1 dwg