DE1081965B - Circuit arrangement for the protection of electrical systems - Google Patents
Circuit arrangement for the protection of electrical systemsInfo
- Publication number
- DE1081965B DE1081965B DEST14929A DEST014929A DE1081965B DE 1081965 B DE1081965 B DE 1081965B DE ST14929 A DEST14929 A DE ST14929A DE ST014929 A DEST014929 A DE ST014929A DE 1081965 B DE1081965 B DE 1081965B
- Authority
- DE
- Germany
- Prior art keywords
- circuit arrangement
- electrical systems
- protection
- assignments
- circuit
- 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
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000978750 Havardia Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000010454 slate 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
- H02H3/26—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
Schaltungsanordnung zum Schutz elektrischer Anlagen Zusatz zum. Patent 1053 639 Das Hauptpatent betrifft eine Schaltungsanordnung zum Schutz elektrischer Anlagen durch Abschalten beim Auftreten von Fehlerströmen mit Hilfe eines Differenzwandlers und eines in Abhängigkeit von den im Differenzwandler auftretenden Strömen ausgelösten Schalters, dessen Auslosungssperre mit einem Betätigungsorgan in Verbindung steht, das bei normalem Betriebszustand durch eine Ruhestromspeisung an der Betätigung verhindert wird.Circuit arrangement for the protection of electrical systems in addition to. Patent 1053 639 The main patent relates to a circuit arrangement for the protection of electrical systems by switching off when fault currents occur with the aid of a differential converter and a switch that is triggered depending on the currents occurring in the differential converter Quiescent current supply to the actuation is prevented.
Die im Hauptpatent geschützte Erfindung ist dadurch gekennzeichnet, daß die bei einem Körperschluß am Differenzwandler auftretende Spannung eine aus einer oder allen Netzphasen und dem Nulleiter entnommene Ruhespannung kompensiert und damit die Abschaltung der Anlage mit Hilfe eines elektrostatischen Relais nach dem johnsen-Rahbeck-Effekt über eine Auslösesperre bewirkt. Die Funktion des elektrostatischen Relais nach johnsen-Rahbeck beruht auf der Ausnutzung der elektrostatischen Anziehung zwischen zwei Belegungen. Das Relais enthält z. B. ein Metallband, welches um einen Halbleiter, wie z. B. Schiefer oder Achat, gespannt wird. Führt man einem solchen System Spannung zu, so tritt eine starke Anziehungskraft zwischen Metallband und Halbleiter auf.The invention protected in the main patent is characterized by that the voltage occurring in the event of a body contact at the differential converter turns off one or all mains phases and the neutral conductor removed open-circuit voltage compensated and thus the shutdown of the system with the help of an electrostatic relay the johnsen-Rahbeck effect caused by a trigger lock. The function of the electrostatic Relay according to Johnsen-Rahbeck is based on the utilization of electrostatic attraction between two assignments. The relay contains z. B. a metal band, which around a Semiconductors such as B. slate or agate, is stretched. One leads one System tension increases, so there is a strong force of attraction between the metal band and Semiconductors on.
Bei dieser Schutzschaltung besteht die Möglichkeit, den größten Teil der Schaltelemente des Schutzschalters ständig zu kontrollieren. Ferner kann der Schutzsehalter bei sehr kleinen Auslösestromstärken und großer Schaltleistung ohne Schwierigkeit gebaut werden.With this protective circuit, there is the possibility of the largest part to constantly check the switching elements of the circuit breaker. Furthermore, the Protective switch at very low tripping currents and high switching capacity without Difficulty to be built.
Bei normalen Betriebsverhältnissen wird im Wandlereisen kein magnetisches Feld erzeugt und somit keine Spannung in der Sekundärwicklung induziert. Wenn an einem der Geräte ein Körperschluß auftritt, fließt der Fehlerstrom auch durch die Primärwicklung des Wandlers. Hierdurch entsteht eine Unsymmetrie im Wandlereisen und damit ein magnetisches Feld, das in der Sekundärwicklung eine Spannung hervorruft. Diese Spannung wird nun auf ein Metallhalbleitersystem gegeben und kompensiert die zuvor zum Einschalten und zur Sperrung des Schalters benötigte Speisung.Under normal operating conditions there is no magnetic in the converter iron Field generated and thus no voltage induced in the secondary winding. When on If a body short-circuit occurs in one of the devices, the fault current also flows through the Primary winding of the converter. This creates an asymmetry in the converter iron and thus a magnetic field that creates a voltage in the secondary winding. This voltage is now applied to a metal semiconductor system and compensates for the previously required to switch on and to lock the switch.
Um die Empfindlichkeit der Schutzschaltung noch weiter zu erhöhen, wird gemäß der Erfindung das elektrostatische Relais dem hier vorliegenden Zweck angepaßt.. Es hat sich nämlich gezeigt, daß es möglich ist, eine ähnliche Wirkung auch mit einem Relais zu erzielen, das eine sehr dünne Isolierschicht als Zwischenschicht zur Erzielung eines möglichst geringen Energieverbrauches aufweist. Als Isolierschicht kann z. B. eine Isolierfolie aus Kunststoff als Schutzschicht zwischen den Belegungen vorgesehen sein.To further increase the sensitivity of the protective circuit, According to the invention, the electrostatic relay is used for the present purpose adapted .. It has been shown that it is possible to have a similar effect can also be achieved with a relay that has a very thin insulating layer as an intermediate layer to achieve the lowest possible energy consumption. As an insulating layer can e.g. B. an insulating film made of plastic as a protective layer between the assignments be provided.
Besonders in Verbindung mit einer Transistorenschaltung; wie sie in dem Zusatzpatent 1059 557 angegeben ist, können dann sehr große Empfindlichkeiten, d. h. kleine Auslösestromstärken, erreicht werden.Especially in connection with a transistor circuit; like them in the additional patent 1059 557 is indicated, then very high sensitivities, d. H. small tripping currents can be achieved.
Die Schaltungsanordnung mit dem Relais eignet sich besonders auch für Stromversorgungsanlagen, die mit einem Differentialschutz arbeiten.The circuit arrangement with the relay is also particularly suitable for power supply systems that work with differential protection.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST14929A DE1081965B (en) | 1958-07-11 | 1958-07-11 | Circuit arrangement for the protection of electrical systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST14929A DE1081965B (en) | 1958-07-11 | 1958-07-11 | Circuit arrangement for the protection of electrical systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1081965B true DE1081965B (en) | 1960-05-19 |
Family
ID=7456507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST14929A Pending DE1081965B (en) | 1958-07-11 | 1958-07-11 | Circuit arrangement for the protection of electrical systems |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1081965B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1146181B (en) * | 1961-04-28 | 1963-03-28 | Siemens Ag | Residual current circuit breaker with summation current transformer and amplifier |
-
1958
- 1958-07-11 DE DEST14929A patent/DE1081965B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1146181B (en) * | 1961-04-28 | 1963-03-28 | Siemens Ag | Residual current circuit breaker with summation current transformer and amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2653453C3 (en) | Circuit arrangement for an auxiliary voltage derived from the mains voltage via rectifier elements for multi-pole residual current circuit breakers | |
| DE828881C (en) | Isolation protection circuit with overcurrent protection | |
| DE4040359C2 (en) | Short-circuit protection device | |
| DE1081965B (en) | Circuit arrangement for the protection of electrical systems | |
| DE2059054A1 (en) | Residual current circuit breaker | |
| DE457892C (en) | Device to protect metal vapor rectifier systems in the event of return | |
| AT406208B (en) | Residual current device (fault-current protective circuit breaker, earth leakage circuit breaker) with overvoltage tripping | |
| DE1053639B (en) | Circuit arrangement for the protection of electrical systems | |
| DE1241526B (en) | Current transformer circuit for selective protection | |
| DE896676C (en) | Differential protection device with trigger relay | |
| DE1128534B (en) | Residual current circuit breaker | |
| AT278139B (en) | Arrangement to protect transformers | |
| DE926800C (en) | Length differential protection device | |
| DE516973C (en) | Protection arrangement for electrical control centers or substations | |
| DE1763584C (en) | Protective circuit for portable consumer devices connected to earthed networks | |
| AT203083B (en) | Protective device for locating and disconnecting AC power lines in the event of fault currents | |
| DE334760C (en) | Equipment for the protection of three-phase circuits by means of watertight relays and overload relays | |
| AT240454B (en) | Circuit breaker for combined low-voltage and high-voltage systems with center point earthing | |
| AT128203B (en) | Device for protecting parallel line sections, especially in AC rail networks. | |
| DE318908C (en) | Device for the rapid interruption of DC circuits in the event of a sudden increase in current | |
| DE410346C (en) | Rectifier multi-conductor system | |
| DE404402C (en) | Oil switch protection circuit | |
| DE594228C (en) | Device for protecting busbars | |
| AT232115B (en) | Method for operating a three-phase switch | |
| DE765251C (en) | Selective protection device for electrical lines |