DE1060024B - Overload protection of highly loaded tripping coils - Google Patents
Overload protection of highly loaded tripping coilsInfo
- Publication number
- DE1060024B DE1060024B DEV15459A DEV0015459A DE1060024B DE 1060024 B DE1060024 B DE 1060024B DE V15459 A DEV15459 A DE V15459A DE V0015459 A DEV0015459 A DE V0015459A DE 1060024 B DE1060024 B DE 1060024B
- Authority
- DE
- Germany
- Prior art keywords
- overload protection
- highly loaded
- transformer
- tripping coils
- coils
- 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
- 238000004804 winding Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
Überlastungsschutz von hochbelasteten Auslösespulen Die bei elektrischen Schaltgeräten zur Verwendung kommenden Schnellauslöser besitzen sehr kurze Eigenzeiten. Hierbei sind die Wicklungen des Schnellauslösers so ausgelegt, d'aß sie nur verhältnismäßig kurzzeitig belastet werden dürfen, andernfalls sie zerstört werden.Overload protection of highly loaded tripping coils The electrical Switching devices used for quick release have very short operating times. Here, the windings of the quick release are designed so that they are only proportionate may be loaded for a short time, otherwise they will be destroyed.
Man hat versucht, die kurzen Eigenzeiten durch Verwendung von Relais, Schützern, Wischkontakten an dem Betätigungsschalter od. dgl. zu erhalten. Diese Anordnungen haben aber den Nachteil, daß bei Versagung der Einrichtung der Auslöser zerstört werden kann.Attempts have been made to reduce the short proper times by using relays, Protectors, wiper contacts on the operating switch or the like. To get. These Arrangements have the disadvantage that if the device fails, the trigger can be destroyed.
Die Erfindung zeigt nun einen Überlastungsschutz von hochbelasteten Au.slösespulen, durch den es möglich, ist, äußerst kurze Auslösezeiten herzustellen, und bei dem im Falle einer Versagung eine Überlastung der Auslösespule nicht eintreten kann. Erfindungsgemäß wird der zur Speisung der Auslösespule dienende Strom einem gleichstromgespeisten Transformator entnommen. Es ist zwar bekannt, durch den Anschluß eines Transformators am Gleichstromnetz auf der Sekundärseite des Transformators einen Stromstoß zu erzeugen, doch wurde diese Tatsache noch nicht als Überlastungsschutz von Auslösespulen ausgenutzt, um damit die Zeitdauer des die Auslösespule speisenden Stromes festzulegen.The invention now shows an overload protection for heavily loaded Tripping coils, by means of which it is possible to produce extremely short tripping times, and in which, in the event of failure, the trip coil is not overloaded can. According to the invention, the current used to feed the trip coil is a DC-fed transformer removed. Although it is known by the connection a transformer on the direct current network on the secondary side of the transformer Generating a surge of electricity, however, this fact has not yet been used as an overload protection exploited by trip coils in order to reduce the duration of the feeding of the trip coil Set current.
Beispielsweise kann die Anordnung nach der Erfindung so getroffen werden, daß die über einen Transformator an das Gleichstromnetz angeschlossene Wicklung auf der Primärseite, also im Gleichstromkreis, einen Schalter besitzt, während die Sekundärseite des Transformators ohne Schaltelement nur mit der zu beaufschlagendenWicklung belastet ist. Wird nun der auf der Gleichstromseite befindliche Schalter geschlossen, so entsteht auf der Sekundärseite d'es Transformators nur ein kurzer Stromstoß, dessen Zeitdauer durch Änderung der Konstanten des Transformators (Wicklungsdaten, Streuung, Eisenweg usw.) verändert werden kann. Es läßt sich also mit dieser Anordnung eine nur kurzzeitige Belastung einer hochüberlastbaren Wicklung erzielen ohne Rücksicht auf die Dauer, während der der Schalter auf der Gleichstromseite geschlossen ist.For example, the arrangement according to the invention can be made in this way that the winding connected to the direct current network via a transformer on the primary side, i.e. in the direct current circuit, has a switch, while the Secondary side of the transformer without switching element only with the winding to be acted upon is burdened. If the switch on the direct current side is now closed, so there is only a short current surge on the secondary side of the transformer, its duration by changing the constants of the transformer (winding data, Scatter, iron path, etc.) can be changed. So it can be done with this arrangement only short-term loading of a highly overloadable winding can be achieved without consideration for the duration during which the switch on the direct current side is closed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV15459A DE1060024B (en) | 1958-11-22 | 1958-11-22 | Overload protection of highly loaded tripping coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV15459A DE1060024B (en) | 1958-11-22 | 1958-11-22 | Overload protection of highly loaded tripping coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1060024B true DE1060024B (en) | 1959-06-25 |
Family
ID=7575047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEV15459A Pending DE1060024B (en) | 1958-11-22 | 1958-11-22 | Overload protection of highly loaded tripping coils |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1060024B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE691373C (en) * | 1938-03-27 | 1940-05-24 | Siemens Schuckertwerke Akt Ges | Device for the simultaneous transmission of signals in two different directions |
-
1958
- 1958-11-22 DE DEV15459A patent/DE1060024B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE691373C (en) * | 1938-03-27 | 1940-05-24 | Siemens Schuckertwerke Akt Ges | Device for the simultaneous transmission of signals in two different directions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1513295B2 (en) | DEVICE FOR PROTECTION AGAINST THE FAULT CURRENTS OF ELECTRICAL EQUIPMENT | |
| DE1060024B (en) | Overload protection of highly loaded tripping coils | |
| DE1808770A1 (en) | Residual current circuit breaker | |
| DE719793C (en) | Combined overcurrent and overvoltage circuit breaker | |
| DE896676C (en) | Differential protection device with trigger relay | |
| DE709687C (en) | Electric switch with fault current release, especially as protection against contact | |
| DE750067C (en) | Multipole overcurrent protection | |
| AT217538B (en) | Overcurrent protection for rectifier systems | |
| DE2163402C3 (en) | Release for residual current circuit breaker | |
| DE636835C (en) | Device for overload protection of measuring devices | |
| AT121196B (en) | Remote switch control with automatic interruption of the main switch. | |
| DE698696C (en) | Motor protection device with start lock | |
| AT126519B (en) | Switch-off device, in particular for operating railway systems. | |
| AT220695B (en) | Residual current circuit breaker | |
| DE889031C (en) | Differential protection device | |
| DE597740C (en) | Protection device for three-phase networks | |
| DE549860C (en) | Switch designed as electromagnetic short-circuit protection, especially for small transformers | |
| DE741350C (en) | Comparison protection | |
| DE715720C (en) | Circuit breaker with remote release | |
| DE1128531B (en) | Electromagnetic release device for electrical switchgear with protection against unintentional release in the event of shocks | |
| DE2123948A1 (en) | Holding magnet release for alternating current | |
| AT111671B (en) | Device for switching off X-ray machines in the event of an impermissible increase in the current strength. | |
| DE761242C (en) | Arrangement to prevent reverse current | |
| DE1178142B (en) | Installation self-switch with electromagnetic and thermal release as well as with manual switch-off in connection with a fault protection release | |
| AT120676B (en) | Device for the protection of alternating current machines. |