OVERCURRENT PROTECTIVE GEAR FOR AC INSTALLATIONS

OVERCURRENT PROTECTIVE GEAR FOR AC INSTALLATIONS

FIELD: power engineering; overcurrent releases of circuit breakers. SUBSTANCE: protective gear has current transformers, rectifier, measuring device, and final element. Measuring device has voltage regulator, two comparators, resistive divider, time-setting element, and output element. Newly introdu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KOCHETKOV V.V, TIMOFEEV D.I
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Beschreibung
Zusammenfassung:FIELD: power engineering; overcurrent releases of circuit breakers. SUBSTANCE: protective gear has current transformers, rectifier, measuring device, and final element. Measuring device has voltage regulator, two comparators, resistive divider, time-setting element, and output element. Newly introduced in protective gear is transistor inserted between output of first comparator and capacitor of time-setting circuit. EFFECT: reduced probability of unwanted aftereffects caused by short-circuit currents. 2 dwg