DE494438C - Earth fault protection device - Google Patents
Earth fault protection deviceInfo
- Publication number
- DE494438C DE494438C DEA52610D DEA0052610D DE494438C DE 494438 C DE494438 C DE 494438C DE A52610 D DEA52610 D DE A52610D DE A0052610 D DEA0052610 D DE A0052610D DE 494438 C DE494438 C DE 494438C
- Authority
- DE
- Germany
- Prior art keywords
- protection device
- earth fault
- fault protection
- point
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- 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
- H02H3/16—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 fault current to earth, frame or mass
- H02H3/162—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 fault current to earth, frame or mass for ac systems
- H02H3/165—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 fault current to earth, frame or mass for ac systems for three-phase systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
Erdschlußschutzeinrichtung Zusatz zum Patent 493403 Das Hauptpatent betrifft eine Schutzeinrichtung, bei der die Erdungswiderstände o. dgl. nicht an den Systemnullpunkt angeschlossen werden, sondern an einen anderen' Punkt, der gegen den -Nullpunkt eine gewisse Spannung besitzt.Earth fault protection device Addition to patent 493403 The main patent relates to a protective device in which the earthing resistances or the like are not on be connected to the system zero point, but to another 'point, which is against the zero point has a certain voltage.
Gegenstand der vorliegenden Erfindung ist eine besonders günstige Anordnung der diesen Hilfspunkt liefernden Wicklung zur Benutzung in Drehstromanlagen. Der Transformator ist dabei in Dreieck- oder V-Schaltung geschaltet, und die Zusatzwicklung wird auf einem oder mehreren Schenkeln des Transformators so verteilt und mit solchen Anzapfungen der Hauptwicldung verbunden, daß ein Punkt der Zusatzwicklung die gegen den Systemnullpunkt gewünschte Spannung ergibt.The present invention is a particularly favorable one Arrangement of the winding providing this auxiliary point for use in three-phase systems. The transformer is connected in a delta or V connection, and the additional winding is distributed on one or more legs of the transformer and with such Taps of the main winding connected that a point of the additional winding the opposite the system zero point results in the desired voltage.
Die Erfindung gestattet eine große Anzahl von Ausführungsformen; die Hauptwicklung kann dabei auf einem Drehstromkern oder auf mehreren Einphasenkernen aufgebracht sein.The invention allows a large number of embodiments; the The main winding can be on a three-phase core or on several single-phase cores be upset.
Einige Ausführungsbeispiele seien an Hand der Zeichnung erläutert. In Abb. r und 2 sind Anzapfpunkte a, b auf den Wicklungen U P und U W einer Dreieck- bzw. einer V-Schaltung durch eine auf dem Schenkel V W liegende Hilfswicklung verbunden. Zwischen dem Punkt c dieser Hilfswicklung und dem Aullpunkt liegt die gewünschte Spannung. Nach Abb. 3 und 4 kann man die in zwei Teile unterteilte Hilfswicklung auf den Schenkeln U Tl und U W anordnen und erhält den Punkt c als den Verbindungspunkt der beiden Teilwicklungen. Da nach Abb.4 der Schenkel V W hierbei überhaupt nicht gebraucht wird, kann man sich in diesem Fall mit zwei Einphasenkernen begnügen.Some exemplary embodiments are explained with reference to the drawing. In Fig. R and 2, tapping points a, b on the windings U P and UW of a triangle or a V connection are connected by an auxiliary winding located on the leg V W. The desired voltage lies between point c of this auxiliary winding and the zero point. According to Fig. 3 and 4, the auxiliary winding, which is divided into two parts, can be arranged on the legs U Tl and UW and the point c is obtained as the connection point of the two partial windings. Since, according to Fig. 4, the leg V W is not needed at all, one can be satisfied with two single-phase cores in this case.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA52610D DE494438C (en) | Earth fault protection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA52610D DE494438C (en) | Earth fault protection device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE494438C true DE494438C (en) | 1930-03-22 |
Family
ID=6938567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA52610D Expired DE494438C (en) | Earth fault protection device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE494438C (en) |
-
0
- DE DEA52610D patent/DE494438C/en not_active Expired
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