DE20301059U1 - Earth loop impedance detector has inductive coupling - Google Patents

Earth loop impedance detector has inductive coupling

Info

Publication number
DE20301059U1
DE20301059U1 DE20301059U DE20301059U DE20301059U1 DE 20301059 U1 DE20301059 U1 DE 20301059U1 DE 20301059 U DE20301059 U DE 20301059U DE 20301059 U DE20301059 U DE 20301059U DE 20301059 U1 DE20301059 U1 DE 20301059U1
Authority
DE
Germany
Prior art keywords
conductor
inductive coupling
measuring
loop impedance
earth loop
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 - Lifetime
Application number
DE20301059U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE20301059U priority Critical patent/DE20301059U1/en
Publication of DE20301059U1 publication Critical patent/DE20301059U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

An earth loop impedance (6) detector has battery driven inductive coupling and detection of a set frequency measurement current into a conductor being tested using half ring ferrite core (4) coils (3) slipped over the conductor (5) with threshold detection (13) and indicator lamp (15) and horn (14).

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (2)

1. Gerät zur Messung von elektrischen Leitungswiderständen dadurch gekennzeichnet, dass mittels induktiver Einkopplung ein Meßstrom bestimmter Frequenz in einen zu prüfenden Leiter eingekoppelt wird. Dieser induzierte Wechselstrom wird durch eine zweite Spule induktiv detektiert und als Leitungswiderstand angezeigt.1. Device for measuring electrical line resistance, characterized in that a measuring current of a certain frequency is coupled into a conductor to be tested by means of inductive coupling. This induced alternating current is inductively detected by a second coil and displayed as a line resistance. 2. Messgerät nach Schutzanspruch 1
dadurch gekennzeichnet, dass durch die Verwendung von Wechselströmen sowohl ohmsche und kapazitive Erd,- bzw. Masseschleifen detektiert werden können,
dadurch gekennzeichnet, dass die beiden erforderlichen Ferritkern Ringe als bewegliche Halbschalen ausgeführt sind und sich damit um den Leiter zusammenzufügen lassen,
dadurch gekennzeichnet, dass sehr kleine Messströme verwendet werden, sodass weder der zu prüfende Leiter in der Anlage beeinflusst wird, als auch ein Batteriebetrieb des Messgerätes möglich ist.2.Measuring device according to protection claim 1
characterized in that both ohmic and capacitive earth or ground loops can be detected by using alternating currents,
characterized in that the two required ferrite core rings are designed as movable half-shells and can thus be assembled around the conductor,
characterized in that very small measuring currents are used, so that neither the conductor to be tested in the system is influenced, nor that battery operation of the measuring device is possible.
DE20301059U 2003-01-24 2003-01-24 Earth loop impedance detector has inductive coupling Expired - Lifetime DE20301059U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20301059U DE20301059U1 (en) 2003-01-24 2003-01-24 Earth loop impedance detector has inductive coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20301059U DE20301059U1 (en) 2003-01-24 2003-01-24 Earth loop impedance detector has inductive coupling

Publications (1)

Publication Number Publication Date
DE20301059U1 true DE20301059U1 (en) 2003-05-22

Family

ID=7979364

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20301059U Expired - Lifetime DE20301059U1 (en) 2003-01-24 2003-01-24 Earth loop impedance detector has inductive coupling

Country Status (1)

Country Link
DE (1) DE20301059U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8537516B1 (en) * 2008-12-05 2013-09-17 Musco Corporation Apparatus, method, and system for monitoring of equipment and earth ground systems
WO2022152357A1 (en) * 2021-01-18 2022-07-21 Neosid Pemetzrieder Gmbh & Co. Kg Device for monitoring the state of an electrical conductor network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8537516B1 (en) * 2008-12-05 2013-09-17 Musco Corporation Apparatus, method, and system for monitoring of equipment and earth ground systems
WO2022152357A1 (en) * 2021-01-18 2022-07-21 Neosid Pemetzrieder Gmbh & Co. Kg Device for monitoring the state of an electrical conductor network

Similar Documents

Publication Publication Date Title
Trout Use of Helmholtz coils for magnetic measurements
CN104768599B (en) Pin magnetizable composite body
US4973911A (en) Apparatus for electromagnetic compatibility testing
CN103176051A (en) Earth/ground clamp for measuring earth resistance of electrical installations
MXPA03008992A (en) Inductive current sensor for an electricity meter.
DE60125586T2 (en) CURRENT SENSOR
GB2570761A8 (en) Sensor configuration in magnetometer for medical use
CN108701983A (en) A kind of arc fault current detector
EA200101192A1 (en) MEASUREMENT OF MAGNETIC FIELDS WITH THE USE OF A STRING FIXED ON BOTH END
GB2141236A (en) Nuclear magnetic logging
CN105988093B (en) Magnetic characteristic evaluation method and magnetic characteristic valuator device
DE20301059U1 (en) Earth loop impedance detector has inductive coupling
DE60237042D1 (en) MEASUREMENT TEST AND AUTHENTICATION EQUIPMENT THUS EQUIPPED
US2925731A (en) Weight indicator
CN204405821U (en) A kind of C type measurement mechanism for silicon steel thin belt medium-high frequency magnetic property
ES2199811T3 (en) CURRENT SENSOR
JPS5756769A (en) Searcher for buried metallic pipe
Clifford et al. A retrofit 60 Hz current sensor for non-intrusive power monitoring at the circuit breaker
CA1182172A (en) Method and apparatus for non-destructive testing of magnetical permeable bodies
Cheng et al. Research of miniature magnetic coil sensor used for detecting power cables underground
KR900000984B1 (en) Earth resistance measure method and system
DE4325767A1 (en) Layer thickness measuring device
CN205317958U (en) Illuminating line detection instrument
CN105425303B (en) Mobile magnetic target detection system based on passive magnetic flux
CN104865547A (en) Signal injection calibration method of integral pulse magnetic field measurement system

Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20030626

R156 Lapse of ip right after 3 years

Effective date: 20060801