IE37831B1 - Industrial truck with current leakage path monitoring - Google Patents
Industrial truck with current leakage path monitoringInfo
- 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
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]
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)
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 |
-
1972
- 1972-06-30 GB GB3067872A patent/GB1434024A/en not_active Expired
-
1973
- 1973-06-21 IE IE1025/73A patent/IE37831B1/en unknown
- 1973-06-28 NL NLAANVRAGE7309008,A patent/NL168454C/en not_active IP Right Cessation
- 1973-06-28 IT IT26067/73A patent/IT990850B/en active
- 1973-06-29 CA CA175,360A patent/CA997024A/en not_active Expired
- 1973-06-29 BE BE132975A patent/BE801735A/en unknown
- 1973-06-29 DE DE2333209A patent/DE2333209C2/en not_active Expired
- 1973-06-29 FR FR7324020A patent/FR2203330A5/fr not_active Expired
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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