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Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RWE AG
Original Assignee
Rheinisch Westfaelisches Elektrizitaetswerk AG
Publication date
Priority to DER76285DpriorityCriticalpatent/DE501618C/de
Application grantedgrantedCritical
Publication of DE501618CpublicationCriticalpatent/DE501618C/de
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
H02H3/02—Details
H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
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Description
Hierzu 1 Blatt Zeichnungen
Claims (2)
Patentansprüche:
1. Schutzvorrichtung für Stromverteilungsanlagen nach Patent 497815, dadurch
gekennzeichnet, daß zur Prüfung mehrere Leiter geerdet werden können.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die verschiedenen
Leiter wahlweise über einen Prüfumschalter (h) geerdet werden können.
Verfahren und Vorrichtung zur Herstellung von in einem Arbeitsgang in einer Heisspresse gepressten und mindestens einseitig oberflächenbeschichteten Pressplatten