GB1335701A - Circuit arrangement for detecting an insulation fault in a battery housing - Google Patents
Circuit arrangement for detecting an insulation fault in a battery housingInfo
- Publication number
- GB1335701A GB1335701A GB1335701DA GB1335701A GB 1335701 A GB1335701 A GB 1335701A GB 1335701D A GB1335701D A GB 1335701DA GB 1335701 A GB1335701 A GB 1335701A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- battery
- insulation fault
- source
- relay
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
1335701 Protective arrangements COAL INDUSTRY (PATENTS) Ltd 8 Feb 1972 [19 Feb 1971] 4985/71 Heading H2K A circuit arrangement for detecting an insulation fault in a battery housing having a casing 2 at earth or other potential, comprises a source of A.C. supply connected on one side to earth or said other potential and at the other side to one pole of the battery 1 through a series circuit comprising a rectifier 11, a blocking capacitor 12 and a resistor 13, a current operated switch 17 conducting when a leakage current through the rectifier reaches a predetermined level. As shown, the switch 17 is a transistor which when rendered conducting energizes a relay 18, the relay closing contacts 19 to energize a lamp 22 or other alarm member and opening contacts 20 to disconnect a charging or other circuit. The other pole of the battery may be connected by a resistor 14 to the capacitor 12 and a test circuit 24, 25 may be provided. The A.C. source may be a transformer 4 with a primary winding 5 connected to an A.C. mains supply and secondary windings 7, 8 for supplying the leakage circuit and the relay circuit. Alternatively the A.C. source may be an inverter comprising a transformer with transistors connected to the battery 1, Fig. 2 (not shown). In this case with the battery installed in a locomotive, the arrangement would also detect an insulation fault in the wiring of the locomotive.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB498571 | 1971-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1335701A true GB1335701A (en) | 1973-10-31 |
Family
ID=9787563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1335701D Expired GB1335701A (en) | 1971-02-19 | 1971-02-19 | Circuit arrangement for detecting an insulation fault in a battery housing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1335701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014095574A1 (en) * | 2012-12-20 | 2014-06-26 | Renault S.A.S. | Method of controlling an automobile vehicle battery charger and associated charger |
-
1971
- 1971-02-19 GB GB1335701D patent/GB1335701A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014095574A1 (en) * | 2012-12-20 | 2014-06-26 | Renault S.A.S. | Method of controlling an automobile vehicle battery charger and associated charger |
| FR3000315A1 (en) * | 2012-12-20 | 2014-06-27 | Renault Sa | METHOD FOR CONTROLLING A MOTOR VEHICLE BATTERY CHARGER AND ASSOCIATED CHARGER. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |