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Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES95413DpriorityCriticalpatent/DE511474C/en
Application grantedgrantedCritical
Publication of DE511474CpublicationCriticalpatent/DE511474C/en
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
H02H3/08—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 responsive to excess current
H02H3/10—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 responsive to excess current additionally responsive to some other abnormal electrical conditions
Landscapes
Emergency Protection Circuit Devices
(AREA)
Measurement Of Current Or Voltage
(AREA)
Description
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Patentansprüche:Patent claims:ι . Einrichtung zur Überwachung von Wechselstromniederspannungsnetzen, gekennzeichnet
durch eine Kurzschlußzählvorrichtung, die beim Überschreiten eines
bestimmten Stromes und gleichzeitigem starken Absinken der Spannung anspricht.ι. Device for monitoring AC low-voltage networks, marked
by a short-circuit counting device, which when a
responds with a certain current and a simultaneous sharp drop in voltage.2. Einrichtung nach Anspruch 1, gekennzeichnet durch ein von einem Überstrommagneten
betätigtes Schrittschaltwerk, dessen Anker durch ein von einer Spannungsspule gesteuertes Sperrglied
in der Nullstellung verriegelt wird.2. Device according to claim 1, characterized by one of an overcurrent magnet
Actuated stepping mechanism, the armature of which is controlled by a locking element controlled by a voltage coil
is locked in the zero position.*J Von dem Patentsucher ist als der Erfinder angegeben worden:* J The following has been indicated by the patent seeker as the inventor:Dipl.-Ing. Paul Wittich in Berlin-Charlottenburg.Dipl.-Ing. Paul Wittich in Berlin-Charlottenburg.
DES95413D
Device for monitoring AC low voltage networks
ExpiredDE511474C
(en)
Device for connecting low-voltage devices to high-voltage networks by means of a transformer, in which when the transformer winding connected to the low-voltage network is closed, an electromotive force is generated in it