DE915374C - Device for measuring direct and alternating currents - Google Patents

Device for measuring direct and alternating currents

Info

Publication number
DE915374C
DE915374C DEL3255A DEL0003255A DE915374C DE 915374 C DE915374 C DE 915374C DE L3255 A DEL3255 A DE L3255A DE L0003255 A DEL0003255 A DE L0003255A DE 915374 C DE915374 C DE 915374C
Authority
DE
Germany
Prior art keywords
measuring
alternating currents
measuring system
magnetic
measuring direct
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.)
Expired
Application number
DEL3255A
Other languages
German (de)
Inventor
Dr-Ing Erich Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL3255A priority Critical patent/DE915374C/en
Application granted granted Critical
Publication of DE915374C publication Critical patent/DE915374C/en
Expired legal-status Critical Current

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
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/22—Tong testers acting as secondary windings of current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)

Description

Zum Messen von Gleich- und Wechselströmen in einem stromdurchflossenen Leiter ist eine Vorrichtung bekannt, bei der für die Messung eine Auftrennung des Leiters nicht erforderlich ist. For measuring direct and alternating currents in a current-carrying Head is a device known in which a separation of the measurement Head is not required.

Diese Vorrichtung besteht aus einem zangenartig aufklappbaren magnetisierbaren Kern, mit dem man den Leiter umfaßt. Dler vom Strom im Kern er zeugte magnetische Fluß wirkt auf ein Meßsystem ein, dessen Ausschlag von der Stärke des Stromes und des von ihm erzeugten Magnetflusses ab hängig ist.This device consists of a pincer-like hinged magnetizable Core with which one embraces the conductor. The electricity in the nucleus produced magnetic ones Flux acts on a measuring system, the deflection of which depends on the strength of the current and the magnetic flux generated by it is dependent on.

Die Erfindung bezweckt, ein dlerartiges Gerät in einfacher Weise für verschieden große Meßbereiche anwendbar zu machen, indem der Widerstand des magnetischen Kreises durch Einfügen eines zusätzlichen Luftspaltes und/oder durch Parallelschalten eines magnetischen Flußweges zum Meßsystem veränderbar ist. The invention aims to provide a device-like device in a simple manner to make applicable for different large measuring ranges by the resistance of the magnetic circuit by inserting an additional air gap and / or through Parallel connection of a magnetic flux path to the measuring system can be changed.

In der Zeichnung sind in Fig. I bis 3 die drei Ausführungsmöglichkeiten der Erfindung schematisch dargestellt. Übereinstimmende Teile sind in den verschiedenen Figuren mit denselben Bezugszeichen versehen. In the drawing, the three possible embodiments are shown in FIGS. I to 3 of the invention shown schematically. Corresponding parts are in different Figures are provided with the same reference numerals.

Von dem Handgriff 2 wird der aufklappbare magnetisierbare Kern getragen der aus dem fest mit dem Handgriff verbundenen Teil pa mit dem Meßsystem 3 und dem aufklappbar am Handgriff 2 gelagerten Teil 1b besteht. Zum Messen des Stromes in dem bei 4 angedeuteten Leiter wird der Teil 1b weggeklappt, der Kern über den Leiter geschoben und dann der Teil ob wieder in die dargestellte Lage zurückgeschwenkt. Um das Gerät für verschieden große Meßbereiche anwendbar zu machen, ist nach Fig. 1 der Kernteil 1a vom Kernteil durch einen veränderlichen Luftspalt 5 getrennt. The hinged magnetizable core is carried by the handle 2 of the part pa with the measuring system 3 and the part that is firmly connected to the handle hinged on the handle 2 part 1b consists. To measure the current in Part 1b of the conductor indicated at 4 is folded away, the core over the conductor pushed and then the part whether swiveled back into the position shown. In order to make the device usable for measuring ranges of different sizes, according to Fig. 1, the core part 1a is separated from the core part by a variable air gap 5.

Nach Fig. 2 ist zur Veränderung des Meßbereiches parallel zum Meßsystem ein magnetischer Kernteil 1c gelegt, und die Wirksamkeit dieses das Meßsystem umgehenden magnetischen Flußweges kann dadurch, daß das freie Ende dieses schwenkbar auf dem Kernteil ia gelagerten Kernteils mehr oder weniger dem Kernteil a genähert wird, verändert werden. According to Fig. 2, to change the measuring range is parallel to the measuring system placed a magnetic core part 1c, and the effectiveness of this bypassing the measuring system magnetic flux path can be characterized in that the free end of this pivotable on the Core part ia stored core part is more or less approximated to core part a, to be changed.

In Fig. 3 ist eine gleichzeitige Anwendung der beiden in Fig. 1 und 2 dargestellten Mittel, also sowohl ein veränderlicher Luftspalt 5 als auch ein zum Meßsystem paralleler Flußweg 16 vorgesehen. In Fig. 3 is a simultaneous application of the two in Fig. 1 and 2 means shown, so both a variable air gap 5 and a A flow path 16 parallel to the measuring system is provided.

Claims (1)

P A T E N T A N S P R U C H : Vorrichtung zum Messen von Gleich- und Wechselströmen in Leitern mittels eines zangenartig aufklappbaren, den stromführenden Leiter umfassenden magnetisierbaren Kerns und eines vom magnetischen Fluß beeinflußten Meßsystems, dadurch gekennzeichnet, daß zur Veränderung des Meßbereiches der Widerstand des magnetischen Kreises durch Einfügen eines zusätzlichen Luftspaltes und/oder durch Parallele schalten eines magnetischen Fhißweges zum Meßsystem veränderbar ist. P A T E N T A N S P R U C H: Device for measuring equal and alternating currents in conductors by means of a clamp-like hinged, the current-carrying one Conductor comprising magnetizable core and one influenced by the magnetic flux Measuring system, characterized in that the resistance is used to change the measuring range of the magnetic circuit by inserting an additional air gap and / or Can be changed by switching a magnetic Fhißweges parallel to the measuring system is. Angezogene Druckschriften: Druckschrift: »Schalttafelinstrumente« Liste Ms 1 Mai I949, S. 23, und »S & H Fernmessung nach dem Kompensationsverfahren mit Meßwertumformer«, SH 959, Juni 1950, der Firma Siemens & Halske AG. Referred publications: Publication: »Control Panel Instruments« List Ms 1 May 1949, p. 23, and “S&H telemetry using the compensation method with measuring transducer ”, SH 959, June 1950, from Siemens & Halske AG.
DEL3255A 1950-08-03 1950-08-03 Device for measuring direct and alternating currents Expired DE915374C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL3255A DE915374C (en) 1950-08-03 1950-08-03 Device for measuring direct and alternating currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL3255A DE915374C (en) 1950-08-03 1950-08-03 Device for measuring direct and alternating currents

Publications (1)

Publication Number Publication Date
DE915374C true DE915374C (en) 1954-07-22

Family

ID=7256119

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL3255A Expired DE915374C (en) 1950-08-03 1950-08-03 Device for measuring direct and alternating currents

Country Status (1)

Country Link
DE (1) DE915374C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245184B (en) * 1961-10-17 1967-07-20 Smith & Sons Ltd S Speedometer for internal combustion engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245184B (en) * 1961-10-17 1967-07-20 Smith & Sons Ltd S Speedometer for internal combustion engines

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