DE3738867C2 - - Google Patents

Info

Publication number
DE3738867C2
DE3738867C2 DE19873738867 DE3738867A DE3738867C2 DE 3738867 C2 DE3738867 C2 DE 3738867C2 DE 19873738867 DE19873738867 DE 19873738867 DE 3738867 A DE3738867 A DE 3738867A DE 3738867 C2 DE3738867 C2 DE 3738867C2
Authority
DE
Germany
Prior art keywords
measuring
voltage
resistor
measurement
resistance
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 - Fee Related
Application number
DE19873738867
Other languages
German (de)
English (en)
Other versions
DE3738867A1 (de
Inventor
Werner Proff
Werner 8500 Nuernberg De Rueger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19873738867 priority Critical patent/DE3738867A1/de
Publication of DE3738867A1 publication Critical patent/DE3738867A1/de
Application granted granted Critical
Publication of DE3738867C2 publication Critical patent/DE3738867C2/de
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
    • G01R27/205Measuring contact resistance of connections, e.g. of earth connections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE19873738867 1987-11-06 1987-11-16 Messgeraet zur bestimmung des ableit-, erdableit- und standortuebergangswiderstandes Granted DE3738867A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873738867 DE3738867A1 (de) 1987-11-06 1987-11-16 Messgeraet zur bestimmung des ableit-, erdableit- und standortuebergangswiderstandes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3737809 1987-11-06
DE19873738867 DE3738867A1 (de) 1987-11-06 1987-11-16 Messgeraet zur bestimmung des ableit-, erdableit- und standortuebergangswiderstandes

Publications (2)

Publication Number Publication Date
DE3738867A1 DE3738867A1 (de) 1989-06-08
DE3738867C2 true DE3738867C2 (fr) 1990-07-12

Family

ID=25861551

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873738867 Granted DE3738867A1 (de) 1987-11-06 1987-11-16 Messgeraet zur bestimmung des ableit-, erdableit- und standortuebergangswiderstandes

Country Status (1)

Country Link
DE (1) DE3738867A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235963C1 (de) * 1992-10-26 1994-03-31 Prakla Seismos Gmbh Verfahren zur Überwachung eines Gebietes
DE19512434A1 (de) * 1995-04-03 1996-10-10 Ullrich Dipl Ing Stein Schichtüberwachung
DE102017201893A1 (de) 2017-01-12 2018-07-12 Continental Teves Ag & Co. Ohg Elektronische Schaltung zur Absicherung einer Energieversorgung einer Empfangseinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004723B (de) * 1954-01-19 1957-03-21 Adolf Muehlmeyer Verfahren zur Messung von Erdungswiderstaenden
FR2402212A1 (fr) * 1977-09-06 1979-03-30 Barthelemy Louis Procede et dispositif pour etablir et surveiller une prise de terre

Also Published As

Publication number Publication date
DE3738867A1 (de) 1989-06-08

Similar Documents

Publication Publication Date Title
DE3140753C2 (de) Vorrichtung zum Messen des elektrischen Oberflächenwiderstandes eines Gegenstandes
DE4419070C2 (de) Stromfühler für medizinische Apparate mit stetiger Überwachung
DE112010001977T5 (de) Verfahren und Vorrichtungen zur Fehlerstromschutzüberwachung unter Verwendung eines einzigen Transformators
EP1664804B1 (fr) Procede et dispositif de mesure de tension
DE3738867C2 (fr)
DE60205613T2 (de) Kontaktsteuerung und kontaktüberwachung
EP3489696A1 (fr) Dispositif de mesure de courant, gamme de dispositifs de mesure de courant et procédé de mesure de courant
EP0165512B1 (fr) Procédé d'évaluation de la différence entre une tension alternative et une deuxième tension et dispositif de mesure pour son application
DE3421829C2 (fr)
AT405768B (de) Verfahren und vorrichtung zur messung des schleifenwiderstandes in schutzschalter-geschützten netzen
DE2755983C3 (de) Gerat zur Prüfung des Erdungswiderstandes in mit Fehlerstromschutzschaltern ausgestatteten Netzen
DE2940524C2 (de) Isolationswiderstandsprüfer
DE3638935A1 (de) Signalanpassungsschaltung fuer elektronische ausloeseschalter
EP0500976B1 (fr) Dispositif pour l'obtention d'une tension proportionnelle à un courant à mesurer
DE2413399C2 (fr)
DE2756012A1 (de) Geraet zur pruefung der massnahme fehlerstromschutzschaltung
EP0500975B1 (fr) Résistance de mesure avec des connexions de courant et au moins une connexion de potentiel
DE1766822C3 (de) Gerät zur Messung elektrischer Stromdurchgangswiderstände
DE3512912C2 (fr)
DE2651245A1 (de) Elektrische sicherheitsschaltung
DE102012102034B4 (de) Verfahren und Vorrichtung zur Messung eines Stroms
DE4412386C2 (de) Schaltungsanordnung zur konduktiven Füllstandmessung
EP0839325B1 (fr) Montage de mesure pour la detection et la localisation d'entrees d'eau dans des tuyaux ou des cables
EP1031826A2 (fr) Procédé de détermination de la position d'une fuite
DE2619734A1 (de) Stromversorgungen fuer elektronische messgeraete

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee