DE3246385A1 - Circuit for monitoring the switching function of semiconductor switches - Google Patents
Circuit for monitoring the switching function of semiconductor switchesInfo
- Publication number
- DE3246385A1 DE3246385A1 DE19823246385 DE3246385A DE3246385A1 DE 3246385 A1 DE3246385 A1 DE 3246385A1 DE 19823246385 DE19823246385 DE 19823246385 DE 3246385 A DE3246385 A DE 3246385A DE 3246385 A1 DE3246385 A1 DE 3246385A1
- Authority
- DE
- Germany
- Prior art keywords
- semiconductor switches
- switching function
- circuit
- monitoring
- relay
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/18—Modifications for indicating state of switch
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Electronic Switches (AREA)
Abstract
Description
Schaltung zur tberwachung der Schaltfunktion von Halb-Circuit for monitoring the switching function of half
leiterschaltern l Die Erfindung betrifft eine Schaltung zur Überwachung der Schaltfunktion von Halbleiterschatern, die ein Hilfsrelais betätigen. Bei Schutzrelais ist es nachteilig, wenn diese, insbesondere beim Einsatz in Hochspannungsnetzen, eine Fehlabschaltung verursachen, die auf ein defektes Bauelement zurückzuführen ist. In der Praxis veranlaßt eine derartige, als Überfunktion eines Schutzrelais bezeichnete Störung häufig weitreichende Netz-Abschaltungen.conductor switches l The invention relates to a circuit for monitoring the switching function of semiconductor shutters that actuate an auxiliary relay. With protection relay it is disadvantageous if these, especially when used in high-voltage networks, cause a faulty shutdown, which can be attributed to a defective component is. In practice, this causes an overfunction of a protective relay The designated malfunction often involves extensive network shutdowns.
Demgegenüber wird bei einer Unterfunktion, also beim Ausbleiben einer Netz-Abschaltung, der Schutz vom übergeordneten Schutzrelais durchgeführt, so daß über die Staffelung der Netzschutz gewährleistet bleibt.In contrast, if there is a subfunction, i.e. if there is no Mains disconnection, the protection carried out by the higher-level protective relay, so that The grid protection is guaranteed via the staggering.
Ausgehend von einer Schaltung der eingangs genannten Art besteht die Aufgabe der Erfindung darin, Überfunktionen von Schutzrelais zu verhindern und zu signalisieren. Die Aufgabe ist mit den kennzeichnenden Merkmalen des Anspruches 1 geldst. Anhand eines schematisch dargestellten Ausführungsbeispieles wird die Erfindung näher erläutert.Based on a circuit of the type mentioned, there is The object of the invention is to prevent and to prevent overfunction of protective relays signal. The task is with the characterizing features of the claim 1 money Using a schematically illustrated embodiment, the Invention explained in more detail.
Die Figur zeigt das Blockschaltbild eines Überstromzeitrelais. Es besteht aus den Baugruppen Anregeglieder 1 und 2, Zeitglied 3, Halbleiterschalter 4 und 5 und dem Hilfs- relais 6. Das ttberstromzeitrelais ist teilweise redundant aufgebaut. So bewirkt das Anregeglied 2, daß das Hilfsrelais 6 nur anspricht, wenn die beiden in Reihe liegenden Halbleiterschalter 4 und 5 gleichzeitig in den leitenden Zustand geschaltet sind. Damit wird verhindert, daß bei einer Überfunktion der Baugruppen 1 2 und 3 eine Fehlabschaltung veranlaßt wird, Eine Meldung des Fehlverhaltens erfolgt jedoch noch nicht. Unter Überfunktion wird in diesem Ausführungsbeispiel die Erregung des Hilfsrelais 6 als Folge eines Kurzschlusses in den Halbleiterschaltern verstanden.The figure shows the block diagram of an overcurrent time relay. It consists of the modules excitation elements 1 and 2, timing element 3, semiconductor switch 4 and 5 and the auxiliary relay 6. The overcurrent time relay is partial built redundantly. The excitation element 2 has the effect that the auxiliary relay 6 only responds when the two series semiconductor switches 4 and 5 are simultaneously in the conductive state are switched. This prevents an overfunction the modules 1 2 and 3 cause a faulty shutdown, a message of the faulty behavior does not take place yet. In this exemplary embodiment, hyperfunction the excitation of the auxiliary relay 6 as a result of a short circuit in the semiconductor switches Understood.
Die Überwachung und Meldung Ubernimmt die nachfolgende Schaltung: Zwei Widerstände 7 und 8, die hochohmig gegenüber dem Widerstand des Hilfsrelais 6 sind, sind an dem Verbindungspunkt 14 der Halbleiterschalter 4, 5 angeschlossen.The following switching takes over the monitoring and reporting: Two resistors 7 and 8, which have a high resistance to the resistance of the auxiliary relay 6, the semiconductor switches 4, 5 are connected to the connection point 14.
Wird einer der beiden Halbleiterschalter oder beide gleichzeitig leitend, so wird die Spannung U an dem Teilerabgriff 11 verstimmt. Diese Teilerspannung U überwacht der Pensteraiskriminator 9. Steigt oder fällt die Spannung U huber den vorgebbaren Spannungsbereich des Diskriminators hinaus, so spricht dieser an und ein nachgeschaltetes Anzeigeelement 10 signalisiert dieses Verhalten. Da auch bei einer normalen Anregung des Uberstromzeitrelais für die Laufzeit des Zeitgliedes 3 bis zur Stromabschaltung durch das Hilfsrelais 6 der Fensterdiskriminator 9 anspricht, kann über einen Zeitbaustein 12, der vor der ernsignalisierung mittels Melderelais 13 geschaltet ist und dessen Verzögerungszeit geringfügig über der Laufzeit des Zeitgliedes 3 liegt, eine vorzeitige Pernsignalisierung verhindert werden.If one of the two semiconductor switches or both are conductive at the same time, so the voltage U at the divider tap 11 is detuned. This divider voltage U monitors the Pensteraiskriminator 9. If the voltage U rises or falls above the predeterminable voltage range of the discriminator, it responds to and a downstream display element 10 signals this behavior. There too with normal excitation of the overcurrent relay for the duration of the timer 3 until the power is switched off by the auxiliary relay 6, the window discriminator 9 responds, can via a time module 12, which is set before the renewed signaling by means of a signal relay 13 is switched and its delay time is slightly longer than the duration of the Timing element 3 lies, premature pern signaling can be prevented.
Das Anzeigeelement 10 erfüllt somit zwei Funktionen: erstens signalisiert es die Anregung des Überstromzeitre- lais für die Laufzeit des Relais und zweitens wird bei einem defekten Halbleiterschalter ein Dauersignal gegeben. Wenn also in der Warte das Melderelais 13 einen Schutzrelaisfehler meldet, 80 erkennt man das defekte Überstromzeitrelais vor Ort an dem eingeschalteten Anzeigeelement 10. In der Praxis können mehrere Schutzrelais auf einen gemeinsamen Zeitbaustein 12 mit einem Melderelais 13 arbeiten.The display element 10 thus fulfills two functions: firstly, it signals it is the excitation of the overcurrent lais for the runtime of the relay and secondly, a continuous signal is given in the event of a defective semiconductor switch. So if the signal relay 13 reports a protective relay error in the control room, 80 detects it the defective overcurrent relay on site at the switched-on display element 10. In practice, several protective relays can use a common time module 12 work with a signal relay 13.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823246385 DE3246385A1 (en) | 1982-12-15 | 1982-12-15 | Circuit for monitoring the switching function of semiconductor switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823246385 DE3246385A1 (en) | 1982-12-15 | 1982-12-15 | Circuit for monitoring the switching function of semiconductor switches |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3246385A1 true DE3246385A1 (en) | 1984-06-20 |
DE3246385C2 DE3246385C2 (en) | 1988-12-15 |
Family
ID=6180709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823246385 Granted DE3246385A1 (en) | 1982-12-15 | 1982-12-15 | Circuit for monitoring the switching function of semiconductor switches |
Country Status (1)
Country | Link |
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DE (1) | DE3246385A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835303A1 (en) * | 1988-10-17 | 1990-04-19 | Hartmann & Braun Ag | Circuit for the monitoring of analog input circuits for hyperfunctioning |
FR2650236A1 (en) * | 1989-07-28 | 1991-02-01 | Teves Gmbh Alfred | CIRCUIT CONFIGURATION FOR CONTROLLING A SAFETY RELAY |
DE4441581A1 (en) * | 1994-10-17 | 1996-04-25 | Landis & Gyr Tech Innovat | Control device for actuating switching devices |
FR2855682A1 (en) * | 2003-06-02 | 2004-12-03 | Honeywell | SECURITY STATIC OUTPUT STAGE |
DE102010000728A1 (en) * | 2010-01-07 | 2011-07-14 | DBK David + Baader GmbH, 76870 | Electronic driver for switching and controlling power consumption of vehicle e.g. car, performs switching between MOSFET switch devices with respect to signals from controller |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19539915B4 (en) * | 1995-10-27 | 2007-06-28 | Elan Schaltelemente Gmbh & Co. Kg | Method for monitoring such as standstill and / or Einrichtdrehzahlüberwachung a drive, in particular highly dynamic servo drive, and load relay in particular for use in a corresponding method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2356854B2 (en) * | 1973-11-14 | 1975-09-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electronic switch |
DE2213921C2 (en) * | 1972-03-22 | 1977-09-08 | Siemens AG, 1000 Berlin und 8000 München | Electronic short-circuit-proof switch system |
-
1982
- 1982-12-15 DE DE19823246385 patent/DE3246385A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2213921C2 (en) * | 1972-03-22 | 1977-09-08 | Siemens AG, 1000 Berlin und 8000 München | Electronic short-circuit-proof switch system |
DE2356854B2 (en) * | 1973-11-14 | 1975-09-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electronic switch |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835303A1 (en) * | 1988-10-17 | 1990-04-19 | Hartmann & Braun Ag | Circuit for the monitoring of analog input circuits for hyperfunctioning |
FR2650236A1 (en) * | 1989-07-28 | 1991-02-01 | Teves Gmbh Alfred | CIRCUIT CONFIGURATION FOR CONTROLLING A SAFETY RELAY |
US5309314A (en) * | 1989-07-28 | 1994-05-03 | Alfred Teves Gmbh | Circuit configuration for actuating a safety relay |
DE4441581A1 (en) * | 1994-10-17 | 1996-04-25 | Landis & Gyr Tech Innovat | Control device for actuating switching devices |
DE4441581B4 (en) * | 1994-10-17 | 2004-02-05 | Landis & Gyr Technology Innovation Ag | Control device for actuating switching devices |
FR2855682A1 (en) * | 2003-06-02 | 2004-12-03 | Honeywell | SECURITY STATIC OUTPUT STAGE |
WO2004109918A1 (en) * | 2003-06-02 | 2004-12-16 | Honeywell | Static secure output stage |
DE102010000728A1 (en) * | 2010-01-07 | 2011-07-14 | DBK David + Baader GmbH, 76870 | Electronic driver for switching and controlling power consumption of vehicle e.g. car, performs switching between MOSFET switch devices with respect to signals from controller |
DE102010000728A8 (en) * | 2010-01-07 | 2012-03-01 | Dbk David + Baader Gmbh | Electronic control device |
Also Published As
Publication number | Publication date |
---|---|
DE3246385C2 (en) | 1988-12-15 |
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Legal Events
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8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |