DE925961C - Installation circuit breaker with differential relay - Google Patents
Installation circuit breaker with differential relayInfo
- Publication number
- DE925961C DE925961C DEL14397A DEL0014397A DE925961C DE 925961 C DE925961 C DE 925961C DE L14397 A DEL14397 A DE L14397A DE L0014397 A DEL0014397 A DE L0014397A DE 925961 C DE925961 C DE 925961C
- Authority
- DE
- Germany
- Prior art keywords
- differential relay
- circuit
- winding
- release
- circuit breaker
- 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
- 238000009434 installation Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 1
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
- H02H3/08—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
- H02H3/105—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 responsive to excess current and fault current to earth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
-
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H2071/749—Means for adjusting the conditions under which the device will function to provide protection with a shunt element connected in parallel to magnetic or thermal trip elements, e.g. for adjusting trip current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
Description
Die bekannten Installationsselbstschalter werden an ihre Nennleistung übersteigende Stromstärken dadurch angepaßt, daß dem Bimetallauslöser und der Wicklung der elektromagnetischen Momentanauslösung ein Nebenschlußwiderstand parallel geschaltet wird. Bei den bekannten Installationsselbstschaltern mit Differentialrelais ergibt sich bezüglich einer solchen Anpassung die Schwierigkeit, daß die eine Wicklung des DifferentialrelaisThe known installation auto switches are adjusted to their nominal power exceeding current strengths in that the bimetallic release and a shunt resistor in parallel with the winding of the instantaneous electromagnetic release is switched. In the case of the known installation circuit breakers with differential relays with respect to such an adaptation the difficulty that one winding of the differential relay
ίο ungeshuntet bleibt und demnach auf die neue Stromstärke umschaltbar sein sollte, wobei ein Teil dieser Wicklung für die großen Stromstärken bemessen werden müßte. Dies ist jedoch wegen dem bei den hier in Frage stehenden Schaltern üblicherweise zur Verfügung stehenden Raum nicht möglich und würde übrigens über den Rahmen einer bloßen Anpassung hinausgehen. Es ergibt sich zwar die Möglichkeit, die betreffende Wicklung des Differentialrelais durch einen zweiten Nebenschlußwiderstand zu shunten. Nachteilig ist jedoch, daß,- weil bei den bekannten Ausführungsförmen von Installationsselbstschaltern mit Differentialrelais in einen Stromkreis die Momentanauslösung, die Bimetallauslösung und die eine Wicklung des Differentialrelais liegen, während im anderen Stromkreis nur die zweite Wicklung des Differentialrelais liegt, zwei verschieden große Nebenschlußwiderstände benötigt werden, was leicht zu Verwechslungen führen kann.ίο remains ungeshunted and therefore on the new one Amperage should be switchable, with part of this winding sized for the large currents would have to be. However, this is customary because of the switches in question here available space is not possible and, by the way, would be beyond the scope of a go beyond mere adjustment. Although there is the possibility of the relevant winding of the Differential relay through a second shunt resistor to shunt. However, it is disadvantageous that - because in the known embodiments instantaneous tripping of installation circuit breakers with differential relays in a circuit, the bimetallic release and one winding of the differential relay are in the other Circuit only the second winding of the differential relay is located, two different sized shunt resistors are required, which can easily lead to confusion.
Die Erfindung betrifft einen Installationsselbstschalter mit Differentialrelais, bei dem dieser . Nachteil dadurch vermieden wird, daß im einen Stromkreis eine erste Wicklung des Differentialrelais und ein thermischer Auslöser und im anderen Stromkreis eine zweite Wicklung des Differentialrelais und ein elektromagnetischer Momentanauslöser geschaltet sind, wobei die beiden Stromkreise gleichen Widerstand aufweisen.The invention relates to an installation circuit breaker with differential relay, in which this . The disadvantage is avoided in that a first winding of the differential relay in a circuit and a thermal release and in the other circuit a second winding of the differential relay and an electromagnetic instantaneous release are connected, the two circuits have the same resistance.
In der Zeichnung ist eine beispielsweise Ausführungsform des Erfindungsgegenstandes dargestellt. Darin bedeuten 1 und 2 die zwei Zuführungsklemmen eines Installationsselbstschalters 3, an den ein Verbraucher 4 angeschlossen ist. Dieser Installationsselbstschalter weist in bekannter Art zwei Schalter 5, 6, eine Momentanauslösespule 7, einen thermischen Auslöser 8 und ein Differentialrelais 9 auf. Letzteres weist zwei einander entgegengeschaltete Spulen 10, 11 auf, die je in einem der Stromkreise liegen. Momentanauslösung, thermische Auslösung und Differentialrelais wirken in an sich bekannter Weise mechanisch mit den Schaltern S, 6 zusammen, was durch Wirkungslinien 12 angedeutet ist. Tritt ein Leiterkurzschluß auf, so spricht die Momentanauslösung an. Bei einer dauernden Überlast löst der thermische Auslöser aus und bei einer Stromentnahme gegen Erde das Differentialrelais.In the drawing is an exemplary embodiment of the subject matter of the invention. 1 and 2 denote the two feed terminals an installation circuit breaker 3 to which a consumer 4 is connected. This Installation self-switch has two switches 5, 6, a momentary release coil 7, a thermal release 8 and a differential relay 9. The latter has two opposing Coils 10, 11, which are each in one of the circuits. Momentary release, thermal Tripping and differential relay work mechanically with the switches in a manner known per se S, 6 together, which is indicated by lines of action 12 is indicated. If a conductor short-circuit occurs, the momentary release responds. With a permanent Overload triggers the thermal release and when a current is drawn to earth that Differential relay.
Entgegen den bekannten Ausf üforuongsf ormen sind nun aber beim'dargestellten Schalter die eine Differentialrelaiswicklung 11 und der thermische Auslöser 8 im einen und die andere Differentialrelaiswicklung 10 und der Momentanauslöser 7 im anderen Stromkreis geschaltet, und die Widerstände dieser Schaltteile sind so bemessen, daß die Summe der Widerstände in den beiden Stromkreisen mindestens angenähert gleich ist. Dies ermöglicht nun. die Anpassung an eine höhere Stromstärke durch zwei gleich große Nebenschlüßwiderstände 13, 14 vorzunehmen, die zudem gleich groß sind wie diejenigen, welche bereits bei einem entsprechenden Schalter ohne Differentialrelais zur Anwendung kommen. Anstatt drei verschieden große Nebenschlußwiderstände auf Lager halten zu müssen, genügt jetzt eine einzige Größe.Contrary to the known Ausf üforuongsf orms but now the one differential relay winding at the switch shown 11 and the thermal release 8 in one and the other differential relay winding 10 and the instantaneous release 7 switched in the other circuit, and the resistors these switching parts are dimensioned so that the sum of the resistances in the two circuits is at least is approximately the same. This now enables. the adaptation to a higher amperage two equal shunt resistors 13, 14 which are also the same size as those which have already been used for a corresponding Switches without differential relays are used. Instead of three different sized shunt resistors Having to keep in stock one size is now sufficient.
Für den Fall, daß der Widerstand des den thermischen Auslöser 8 enthaltenden Stromkreises nicht ohne weiteres auf den des anderen Stromkreises abgestimmt werden kann, ist vorgesehen, einen Abgleichwiderstand 15 in den ersten Stromkreis einzuschalten, so daß die oben angegebenen Verhältnisse unter allen Umständen erhalten bleiben.In the event that the resistance of the thermal Trigger 8 containing circuit not easily matched to that of the other circuit can be, it is provided to connect a balancing resistor 15 in the first circuit, so that the above conditions are maintained under all circumstances.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1070186X | 1952-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE925961C true DE925961C (en) | 1955-04-04 |
Family
ID=4555852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL14397A Expired DE925961C (en) | 1952-03-12 | 1953-01-14 | Installation circuit breaker with differential relay |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE517449A (en) |
| CH (2) | CH298280A (en) |
| DE (1) | DE925961C (en) |
| FR (1) | FR1070186A (en) |
| NL (1) | NL92834C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010034001A1 (en) * | 2010-08-11 | 2012-02-16 | Siemens Aktiengesellschaft | Direct current (DC) fault current detection and deactivation arrangement for earth-leakage circuit breaker, has magnetic trigger element to open switching contact by not canceling magnetic fluxes during existence of fault current |
-
0
- NL NL92834D patent/NL92834C/xx active
- BE BE519326D patent/BE519326A/xx unknown
- BE BE517449D patent/BE517449A/xx unknown
-
1952
- 1952-03-12 CH CH298280D patent/CH298280A/en unknown
- 1952-05-15 CH CH302705D patent/CH302705A/en unknown
-
1953
- 1953-01-14 DE DEL14397A patent/DE925961C/en not_active Expired
- 1953-01-29 FR FR1070186D patent/FR1070186A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1070186A (en) | 1954-07-20 |
| BE517449A (en) | |
| NL92834C (en) | |
| BE519326A (en) | |
| CH298280A (en) | 1954-04-30 |
| CH302705A (en) | 1954-10-31 |
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