CH195440A - Device for switching on measuring instruments in electrical circuits without interrupting operation. - Google Patents
Device for switching on measuring instruments in electrical circuits without interrupting operation.Info
- Publication number
- CH195440A CH195440A CH195440DA CH195440A CH 195440 A CH195440 A CH 195440A CH 195440D A CH195440D A CH 195440DA CH 195440 A CH195440 A CH 195440A
- Authority
- CH
- Switzerland
- Prior art keywords
- switching
- short
- electrical circuits
- measuring instruments
- plug
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
Einrichtung zum Einschalten von hlessinstrumenten in Stromkreise ohne Betriebsunterbruch. Bei elektrischen Installationen ist es oft wünschenswert, vorübergehend Kontroll instrumente in die Stromkreise einzuschalten. Handelt es sich dabei um Strom-Messapparate, so sind spezielle Vorkehrungen nötig, damit es möglich ist, das Mess.instrument ohne Be- triebsunterbruch einzuschalten.
Gegenstand vorliegender Erfindung ist eine Einrichtung zum Einschalten von Mess- instrumenten in Stromkreise ohne Betriebs unterbruch mit einem Stecker für den An schluss der Messvorrichtung und einem die Anschlussklemmen tragenden Sockel, die sich durch zwei bewegliche Kurzschlussbrücken auszeichnet.
Fig. 1 und. 2 der beiliegenden Zeichnung zeigen Auf- und Grundriss einer beispiels weisen Ausführungsform der Erfindung.
Der Sockel m aus Isoliermaterial trägt die beiden Klemmstücke c für den Anschluss der Zu- und Ableitung. Die Verbindung zwischen den beiden Klemmstücken erfolgt entweder durch die beiden Kurzschlussbrük- ken <I>i</I> oder<I>l</I> oder durch den Stecker a. Der Kontaktdruck der obern Brücke i wird durch Anziehen der Schraube g erzeugt, die mit ihrem Gewinde e in die im,Sockel fest sitzende Mutter f greift. Die untere Brücke l wird durch Schraubenfedern gegen die Klemmstücke gepresst.
Der Anschluss des Messinstrumentes er folgt mittels de Steckers a, dessen Kontakt finger b in entsprechende Bohrungen der Klemmstücke c passen.
Das Lösender Kurzsehlussbrücken erfolgt durch Lösen der Schraube g, wobei der mit Gewinde d versehene Schraubenkopf mit dem Muttergewinde im Teil h :des Steckers in Ein griff gelangt. Beim weiteren Lösen der Schraube g wird nun der Stecker pro Um drehung um die Differenz der beiden Stei gungen der Schrauben d und e in die Klem men hineingezogen, während die Brücke i gleichzeitig abgehoben wird. Nach einigen Umgängen legen sieh die Stifte<I>k</I> gegen<I>1.</I> worauf auch die zweite Brücke abgehoben und damit das Messinstrument eingeschaltet wird.
Der Stecker ist in dieser Stellung mit dem Sockel verriegelt und kann erst wieder entfernt werden, nachdem die Schraube g festgezogen ist, wobei jedoch vorher die bei den Brücken i und 1 wieder die direkte Ver bindung zwischen den Anschlussklemmen übernehmen.
Die beschriebene Einrichtung hat den Vorteil, dass Fehlmanipulationen infolge Unachtsamkeit vollständig ausgeschlossen sind.
Device for switching on hless instruments in electrical circuits without interrupting operation. In electrical installations, it is often desirable to temporarily switch control instruments into the circuits. If it concerns current measuring devices, special precautions are necessary so that it is possible to switch on the measuring instrument without interrupting operation.
The subject of the present invention is a device for switching on measuring instruments in circuits without operational interruption with a plug for connecting the measuring device and a base carrying the connecting terminals, which is characterized by two movable short-circuit bridges.
Fig. 1 and. 2 of the accompanying drawings show the elevation and floor plan of an exemplary embodiment of the invention.
The base m made of insulating material carries the two clamping pieces c for connecting the inlet and outlet lines. The connection between the two clamping pieces is made either through the two short-circuit bridges <I> i </I> or <I> l </I> or through the plug a. The contact pressure of the upper bridge i is generated by tightening the screw g, the thread e of which engages in the nut f, which is firmly seated in the base. The lower bridge l is pressed against the clamping pieces by coil springs.
The connection of the measuring instrument he follows by means of de connector a, whose contact fingers b fit into corresponding holes in the clamping pieces c.
The short-circuit bridges are released by loosening the screw g, whereby the screw head provided with thread d with the nut thread in part h: of the plug comes into a grip. When loosening the screw g further, the plug is now drawn into the Klem men per turn by the difference between the two slopes of the screws d and e, while the bridge i is lifted at the same time. After a few rounds you will see the pins <I> k </I> against <I> 1. </I> whereupon the second bridge is also lifted and the measuring instrument is switched on.
The plug is locked in this position with the base and can only be removed again after the screw g is tightened, but before taking over the direct connection between the terminals at the bridges i and 1 again.
The device described has the advantage that incorrect manipulations as a result of inattention are completely excluded.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH195440T | 1937-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH195440A true CH195440A (en) | 1938-01-31 |
Family
ID=4439942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH195440D CH195440A (en) | 1937-03-17 | 1937-03-17 | Device for switching on measuring instruments in electrical circuits without interrupting operation. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH195440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0074166A1 (en) * | 1981-07-30 | 1983-03-16 | Mitsubishi Denki Kabushiki Kaisha | A terminal apparatus and a batch inserting type test plug for a drawer type relay |
| WO1997038320A1 (en) * | 1996-04-04 | 1997-10-16 | Siemens Aktiengesellschaft | Measuring device for measuring electric currents in a force-loaded current conductor |
-
1937
- 1937-03-17 CH CH195440D patent/CH195440A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0074166A1 (en) * | 1981-07-30 | 1983-03-16 | Mitsubishi Denki Kabushiki Kaisha | A terminal apparatus and a batch inserting type test plug for a drawer type relay |
| US4476400A (en) * | 1981-07-30 | 1984-10-09 | Mitsubishi Denki Kabushiki Kaisha | Terminal apparatus and a batch inserting type test plug for a drawer type relay |
| WO1997038320A1 (en) * | 1996-04-04 | 1997-10-16 | Siemens Aktiengesellschaft | Measuring device for measuring electric currents in a force-loaded current conductor |
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