IE37831B1 - Industrial truck with current leakage path monitoring - Google Patents

Industrial truck with current leakage path monitoring

Info

Publication number
IE37831B1
IE37831B1 IE1025/73A IE102573A IE37831B1 IE 37831 B1 IE37831 B1 IE 37831B1 IE 1025/73 A IE1025/73 A IE 1025/73A IE 102573 A IE102573 A IE 102573A IE 37831 B1 IE37831 B1 IE 37831B1
Authority
IE
Ireland
Prior art keywords
circuit
industrial truck
current leakage
leakage path
path monitoring
Prior art date
Application number
IE1025/73A
Other versions
IE37831L (en
Original Assignee
Lansing Bagnall Ltd
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 Lansing Bagnall Ltd filed Critical Lansing Bagnall Ltd
Publication of IE37831L publication Critical patent/IE37831L/en
Publication of IE37831B1 publication Critical patent/IE37831B1/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

1434024 Earth fault protective systems LANSING BAGNALL Ltd 21 June 1973 [30 June 1972] 30678/72 Heading H2K An industrial truck which has an electric motor operating circuit 2 including a battery 1 has a conductive chassis 24 to which a monitoring circuit 22 is connected so as to feed an alternating signal to a relay to retain the relay contacts 27a, 27b (controlling contacts 4, 4a and 29, 29a) closed unless the alternating signal is reduced due to some fault connection between the circuit 2 and the chassis 24 which are also connected by a path via a connection 40. The oscillator and sensor arrangement of the circuit 22 is provided with diodes (Figs. 2 and 3, not shown) to prevent D.C. flow in circuit 22. [GB1434024A]
IE1025/73A 1972-06-30 1973-06-21 Industrial truck with current leakage path monitoring IE37831B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3067872A GB1434024A (en) 1972-06-30 1972-06-30 Industrial truck with current leakage path monitoring

Publications (2)

Publication Number Publication Date
IE37831L IE37831L (en) 1973-12-30
IE37831B1 true IE37831B1 (en) 1977-10-26

Family

ID=10311420

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1025/73A IE37831B1 (en) 1972-06-30 1973-06-21 Industrial truck with current leakage path monitoring

Country Status (8)

Country Link
BE (1) BE801735A (en)
CA (1) CA997024A (en)
DE (1) DE2333209C2 (en)
FR (1) FR2203330A5 (en)
GB (1) GB1434024A (en)
IE (1) IE37831B1 (en)
IT (1) IT990850B (en)
NL (1) NL168454C (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE688825C (en) * 1938-06-19 1940-03-02 Aeg Safety device for constant monitoring
DE1438945A1 (en) * 1964-11-07 1968-11-21 Baldwin & Francis Ltd Earth fault protection circuit

Also Published As

Publication number Publication date
DE2333209A1 (en) 1974-01-10
NL168454B (en) 1981-11-16
CA997024A (en) 1976-09-14
GB1434024A (en) 1976-04-28
BE801735A (en) 1973-10-15
AU5762173A (en) 1975-01-09
IT990850B (en) 1975-07-10
DE2333209C2 (en) 1982-07-08
NL7309008A (en) 1974-01-02
FR2203330A5 (en) 1974-05-10
IE37831L (en) 1973-12-30
NL168454C (en) 1982-04-16

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