DE1173583B - Protective device against short circuits in electrical networks - Google Patents
Protective device against short circuits in electrical networksInfo
- Publication number
- DE1173583B DE1173583B DEC20046A DEC0020046A DE1173583B DE 1173583 B DE1173583 B DE 1173583B DE C20046 A DEC20046 A DE C20046A DE C0020046 A DEC0020046 A DE C0020046A DE 1173583 B DE1173583 B DE 1173583B
- Authority
- DE
- Germany
- Prior art keywords
- network
- monitoring
- frequency
- protective device
- electrical networks
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
- H01H39/006—Opening by severing a conductor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/003—Fault detection by injection of an auxiliary voltage
-
- 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
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/226—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Air Bags (AREA)
- Protection Of Transformers (AREA)
- Fuses (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Deutsche Kl.: 21 c - 68/50 German class: 21 c - 68/50
Nummer: 1173 583Number: 1173 583
Aktenzeichen: C 20046 VIII b / 21 c File number: C 20046 VIII b / 21 c
Anmeldetag: 27. Oktober 1959 Filing date: October 27 , 1959
Auslegetag: 9. Juli 1964 Opening day: July 9, 1964
Die Erfindung betrifft eine Schutzeinrichtung gegen Kurzschlüsse in elektrischen Netzen, bei welcher eine Uberwachungs-Wechselspannung mit gegen die Netzfrequenz um ein Vielfaches höherer Frequenz auf das Stromnetz aufgedrückt wird und bei der wenigstens ein nur auf die Überwachungsfrequenz ansprechendes Uberstromrelais vorgesehen ist, welches im Falle eines Kurzschlusses Abschaltvorrichtungen für das Netz betätigt, wobei aus Induktivitäten und Kapazitäten bestehende, auf die Überwachungsfrequenz abgestimmte Sperrkreise vorgesehen sind, um die Überwachungsfrequenz von bestimmten Teilen des Netzes fernzuhalten, nach Patent 1146 176.The invention relates to a protection device against short circuits in electrical networks, in which a Monitoring AC voltage with a frequency that is many times higher than the mains frequency the power grid is pressed and at least one responsive only to the monitoring frequency Overcurrent relay is provided which, in the event of a short circuit, disconnection devices for the network operated, consisting of inductances and capacitances, on the monitoring frequency Tuned trap circuits are provided to reduce the monitoring frequency of certain parts of the Keep away from the net, according to patent 1146 176.
Die Schutzeinrichtung nach dem Hauptpatent kennzeichnet sich dadurch, daß die Sperrkreise aus den Wicklungen der Stromquelle oder der Verbraucher sowie aus dazu parallel geschalteten Kapazitäten bestehen. Sie zeichnet sich durch eine hohe Ansprechempfindlichkeit aus.The protective device according to the main patent is characterized by the fact that the blocking circuits are made from the windings of the power source or the consumer as well as capacitors connected in parallel exist. It is characterized by a high level of responsiveness.
Ziel der Erfindung ist eine weitere Verbesserung der bekannten Schutzeinrichtung, durch welche eine besonders schnelle Abschaltung erzielt werden soll.The aim of the invention is a further improvement of the known protective device, through which a particularly fast shutdown is to be achieved.
Hierzu sieht die Erfindung bei der Schutzeinrichtung nach dem Hauptpatent vor, daß zwischen den Generator mit den Kapazitäten und das Netz ein Sprengtrenner eingeschaltet ist.For this purpose, the invention provides for the protective device according to the main patent that between the Generator with the capacities and the network an explosive separator is switched on.
Die Erfindung wird beispielsweise an Hand der Zeichnung beschrieben, welche ein Blockschaltbild einer Schutzeinrichtung gemäß der Erfindung darstellt. The invention is described, for example, with reference to the drawing, which is a block diagram represents a protection device according to the invention.
In der Zeichnung ist ein Netzl dargestellt, welches von einem Generators gespeist wird, dessen Ständerwicklungen gemäß dem Hauptpatent durch Kapazitäten 15, 16, 17 zu auf die Überwachungsfrequenz abgestimmten Sperrkreisen ergänzt sind. Das Netz wird durch eine Einrichtung 2 überwacht, welche einen Überwachungsstrom mit einer gegenüber der Netzfrequenz höheren Frequenz in das Netz einspeist, wie das in der deutschen Patentschrift 1146 176 und in den französischen Patentschriften 1198 124 und 1193 579 beschrieben ist. Danach ist es bekannt, daß der Überwachungsstrom höherer Frequenz im Kurzschlußfalle eine Größe annimmt, welche über Stromwandler und auf die Überwachungsfrequenz abgestimmte Filter angezeigt werden kann. Dieser Strom ist praktisch unabhängig von Erhöhungen der Stromstärke infolge von Stromstößen, beispielsweise beim Anlassen von Motoren. Im dargestellten Schaltungsbeispiel sind die Stromwandler 3 an ein statisches Relais 4 angeschlossen, dessen Eingang auf die Überwachungsfrequenz abgestimmte Filter enthält. Falls im Netz 1 ein Kurz-In the drawing, a Netzl is shown, which is fed by a generator whose stator windings according to the main patent by capacities 15, 16, 17 are supplemented to trap circuits matched to the monitoring frequency. The network is monitored by a device 2, which a monitoring current with a compared to the Network frequency feeds higher frequency into the network, such as that in German patent specification 1146 176 and is described in French patents 1198 124 and 1193 579. After that it is known that the monitoring current of higher frequency assumes a size in the event of a short circuit, which are displayed via current transformers and filters matched to the monitoring frequency can. This current is practically independent of increases in current strength as a result of current surges, for example when starting engines. In the circuit example shown are the current transformers 3 connected to a static relay 4, the input of which is matched to the monitoring frequency Includes filter. If there is a short
Schutzeinrichtung gegen Kurzschlüsse
in elektrischen NetzenProtective device against short circuits
in electrical networks
Zusatz zum Patent: 1146 176Addendum to the patent: 1146 176
Anmelder:Applicant:
Charbonnages de France, ParisCharbonnages de France, Paris
Vertreter:Representative:
Dr. W. Müller-Bore und Dipl.-Ing. H. Gralfs,Dr. W. Müller-Bore and Dipl.-Ing. H. Gralfs,
Patentanwälte, Braunschweig, Am Bürgerpark 8Patent attorneys, Braunschweig, Am Bürgerpark 8
Beanspruchte Priorität:Claimed priority:
Frankreich vom 28. Oktober 1958 (777 724) -France of October 28, 1958 (777 724) -
Schluß auftritt, wächst der Uberwachungsstrom mit der höheren Frequenz derart an, daß das statische Relais 4 anspricht. Das Relais 4 löst dann seinerseits den Hilfsstromkreis 5 aus, welcher einen Strom inFinally occurs, the monitoring current grows with it the higher frequency in such a way that the static relay 4 responds. The relay 4 then triggers in turn the auxiliary circuit 5, which a current in
a5 die Zünddrähte des gemäß der Erfindung eingeschalteten Sprengtrenners 6 schickt.a5 the ignition wires of the switched on according to the invention Explosive separator 6 sends.
Die durch die Abtrennung des Generators S vom Überwachungsstromkreis mittels der Kapazitäten 15, 16,17 bereits sehr empfindliche Uberwachungsschaltung wird durch Einschaltung des Sprengtrenners 6 wesentlich verbessert, da hierdurch die Abschaltung im Kurzschlußfall in einigen Millisekunden erfolgt. Das ist schnell genug, um den Kurzschlußstrom auf einen sehr kurzen Zeitraum zu begrenzen, und zwar selbst bei niedrigen Kurzschlußströmen. Die Schaltung ist jedoch unempfindlich gegen Überströme, die z. B. beim Anlassen von Motoren auftreten.The monitoring circuit, which is already very sensitive due to the disconnection of the generator S from the monitoring circuit by means of the capacitors 15, 16, 17, is significantly improved by switching on the explosive separator 6, since it is switched off in a few milliseconds in the event of a short circuit. This is fast enough to limit the short-circuit current to a very short period of time, even with low short-circuit currents. However, the circuit is insensitive to overcurrents, which z. B. occur when starting engines.
Im Falle eines Dreiphasennetzes ist tatsächlich für jede Phase eine gesonderte Patrone des Sprengtrenners vorgesehen. Die drei Zündpatronen können mit einer einzigen Zündschnur zusammengeschaltet sein.In the case of a three-phase network, there is actually a separate cartridge of the separator for each phase intended. The three igniter cartridges can be interconnected with a single detonating cord.
Claims (2)
ETZ-A, 1958, S. 33 bis 40;
Deutsche Elektrotechnik, 1958/5, S. 148 bis 151.Considered publications:
ETZ-A, 1958, pp. 33 to 40;
Deutsche Elektrotechnik, 1958/5, pp. 148 to 151.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1179548X | 1957-07-09 | ||
| FR803610A FR1242994A (en) | 1957-07-09 | 1957-08-26 | Protection of electrical networks comprising cables |
| FR1193579X | 1958-03-25 | ||
| FR1198124X | 1958-06-02 | ||
| FR777724 | 1958-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1173583B true DE1173583B (en) | 1964-07-09 |
Family
ID=43479304
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC17147A Pending DE1146176B (en) | 1957-07-09 | 1958-07-08 | Protective device against short circuits in electrical networks |
| DEC6662U Expired DE1801774U (en) | 1957-07-09 | 1959-10-27 | QUICK DISCONNECT DEVICE FOR ELECTRICAL CIRCUITS. |
| DEC20047A Pending DE1108307B (en) | 1957-07-09 | 1959-10-27 | Protective circuit for electrical cables for operation in explosive and firedamp atmospheres |
| DEC20046A Pending DE1173583B (en) | 1957-07-09 | 1959-10-27 | Protective device against short circuits in electrical networks |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC17147A Pending DE1146176B (en) | 1957-07-09 | 1958-07-08 | Protective device against short circuits in electrical networks |
| DEC6662U Expired DE1801774U (en) | 1957-07-09 | 1959-10-27 | QUICK DISCONNECT DEVICE FOR ELECTRICAL CIRCUITS. |
| DEC20047A Pending DE1108307B (en) | 1957-07-09 | 1959-10-27 | Protective circuit for electrical cables for operation in explosive and firedamp atmospheres |
Country Status (5)
| Country | Link |
|---|---|
| BE (3) | BE569291A (en) |
| DE (4) | DE1146176B (en) |
| FR (5) | FR1179548A (en) |
| GB (4) | GB866031A (en) |
| NL (1) | NL104787C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180669A (en) * | 2017-07-08 | 2017-09-19 | 安徽德源电缆集团有限公司 | A kind of novel ethylene propylene rubber insulated cable |
| CN107342134A (en) * | 2017-07-08 | 2017-11-10 | 安徽德源电缆集团有限公司 | A kind of ethylene propylene rubber insulated type signal cable of good toughness |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2229157A1 (en) * | 1973-05-07 | 1974-12-06 | Merlin Gerin | Electricity network fault location system - automatic system reconnects non faulty circuit sections |
| GB2195846A (en) * | 1986-10-09 | 1988-04-13 | Lucas Ind Plc | Detecting disconnection of electrical apparatus |
| DE10209627A1 (en) * | 2002-03-05 | 2003-10-02 | Mbb Airbag Systems Gmbh | Pyrotechnical switch e.g. for load disconnection in motor vehicle, has conductive body with two conductive regions, sandwiching rated disconnect region with cavity containing pressure source |
| DE10209626B4 (en) * | 2002-03-05 | 2005-02-03 | Mbb Airbag Systems Gmbh | Pyrotechnic switch |
| CN104048569B (en) * | 2014-05-29 | 2015-09-23 | 西安电子工程研究所 | A kind of Microsecond grade coaxial type synchronous control switch |
| CN106531415A (en) * | 2016-12-28 | 2017-03-22 | 江苏思源赫兹互感器有限公司 | Electric reactance device with over voltage suppression and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1831338A (en) * | 1924-04-17 | 1931-11-10 | Ass Elect Ind | Protective apparatus for electrical systems |
| DE725747C (en) * | 1928-10-03 | 1942-09-28 | Siemens Ag | Circuit arrangement for the protection of power lines against operational disturbances |
| DE637111C (en) * | 1932-07-23 | 1936-10-22 | Siemens Schuckertwerke Akt Ges | Arrangement for the protection of electrical systems, especially power systems |
| DE761432C (en) * | 1939-07-21 | 1953-06-22 | Bosch Gmbh Robert | Snap-off coupling for ignition devices |
| BE440907A (en) * | 1940-03-01 | |||
| DE966596C (en) * | 1951-02-14 | 1957-08-22 | Siemens Ag | Protective circuit for cables or lines in companies that are at risk of explosion or firedamp |
| DE968200C (en) * | 1951-02-14 | 1958-01-23 | Siemens Ag | Protective circuit for cables or lines in companies that are at risk of explosion or firedamp |
| FR1089708A (en) * | 1953-12-18 | 1955-03-21 | Land & Seekabelwerke Ag | Protection device for mobile electrical pipes |
| DE1089865B (en) * | 1959-09-15 | 1960-09-29 | Siemens Ag | Arrangement to reduce a fault current between feed lines, especially for cables and lines in underground mining |
-
1957
- 1957-07-09 FR FR1179548D patent/FR1179548A/en not_active Expired
- 1957-08-26 FR FR803610A patent/FR1242994A/en not_active Expired
-
1958
- 1958-03-25 FR FR1193579D patent/FR1193579A/en not_active Expired
- 1958-06-02 FR FR1198124D patent/FR1198124A/en not_active Expired
- 1958-07-07 GB GB21761/58A patent/GB866031A/en not_active Expired
- 1958-07-08 DE DEC17147A patent/DE1146176B/en active Pending
- 1958-07-08 NL NL229420A patent/NL104787C/xx active
- 1958-07-09 BE BE569291D patent/BE569291A/xx unknown
- 1958-10-28 FR FR1213796D patent/FR1213796A/en not_active Expired
-
1959
- 1959-10-26 BE BE583987A patent/BE583987A/en unknown
- 1959-10-27 DE DEC6662U patent/DE1801774U/en not_active Expired
- 1959-10-27 DE DEC20047A patent/DE1108307B/en active Pending
- 1959-10-27 DE DEC20046A patent/DE1173583B/en active Pending
- 1959-10-28 GB GB36657/59A patent/GB927167A/en not_active Expired
- 1959-10-28 GB GB5713/62A patent/GB927169A/en not_active Expired
- 1959-10-28 GB GB36658/59A patent/GB927168A/en not_active Expired
-
1960
- 1960-06-30 BE BE592458A patent/BE592458A/en unknown
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180669A (en) * | 2017-07-08 | 2017-09-19 | 安徽德源电缆集团有限公司 | A kind of novel ethylene propylene rubber insulated cable |
| CN107342134A (en) * | 2017-07-08 | 2017-11-10 | 安徽德源电缆集团有限公司 | A kind of ethylene propylene rubber insulated type signal cable of good toughness |
Also Published As
| Publication number | Publication date |
|---|---|
| GB927169A (en) | 1963-05-29 |
| FR1179548A (en) | 1959-05-26 |
| BE592458A (en) | 1960-12-30 |
| GB927167A (en) | 1963-05-29 |
| BE583987A (en) | 1960-04-25 |
| BE569291A (en) | 1959-01-09 |
| DE1108307B (en) | 1961-06-08 |
| FR1193579A (en) | 1959-11-03 |
| FR1242994A (en) | 1961-01-11 |
| FR1198124A (en) | 1959-12-04 |
| GB927168A (en) | 1963-05-29 |
| GB866031A (en) | 1961-04-26 |
| DE1801774U (en) | 1959-12-10 |
| DE1146176B (en) | 1963-03-28 |
| FR1213796A (en) | 1960-04-04 |
| NL104787C (en) | 1963-05-15 |
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