GB2229872B - An electrical energy transmission system for intrinsically safe transmission of energy - Google Patents
An electrical energy transmission system for intrinsically safe transmission of energyInfo
- Publication number
- GB2229872B GB2229872B GB9004004A GB9004004A GB2229872B GB 2229872 B GB2229872 B GB 2229872B GB 9004004 A GB9004004 A GB 9004004A GB 9004004 A GB9004004 A GB 9004004A GB 2229872 B GB2229872 B GB 2229872B
- Authority
- GB
- United Kingdom
- Prior art keywords
- energy
- transmission
- intrinsically safe
- transmission system
- electrical energy
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893905772 DE3905772C2 (en) | 1989-02-24 | 1989-02-24 | Electrical energy transmission system for intrinsically safe energy transmission |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9004004D0 GB9004004D0 (en) | 1990-04-18 |
GB2229872A GB2229872A (en) | 1990-10-03 |
GB2229872B true GB2229872B (en) | 1993-10-06 |
Family
ID=6374860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9004004A Expired - Fee Related GB2229872B (en) | 1989-02-24 | 1990-02-22 | An electrical energy transmission system for intrinsically safe transmission of energy |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3905772C2 (en) |
GB (1) | GB2229872B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6618265B2 (en) * | 2001-10-01 | 2003-09-09 | Applied Materials, Inc. | Wiring arrangement ensuring all-or-none operation of a series of modular load elements |
JP2006101430A (en) * | 2004-09-30 | 2006-04-13 | Yazaki Corp | Communication device for vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1441808A (en) * | 1973-07-31 | 1976-07-07 | Coal Industry Patents Ltd | Intrinsically safe power supply apparatus |
GB1495456A (en) * | 1974-03-06 | 1977-12-21 | Ducellier & Cie | Low consumption electronic apparatus |
US4630162A (en) * | 1984-07-31 | 1986-12-16 | Texas Instruments Incorporated | ESD input protection circuit |
EP0372673A2 (en) * | 1988-12-08 | 1990-06-13 | Nortel Networks Corporation | Telephone protection circuit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2202638C2 (en) * | 1972-01-20 | 1975-04-03 | Honeywell Gmbh, 6000 Frankfurt | Voltage-reducing circuit arrangement connected to a Zener barrier |
-
1989
- 1989-02-24 DE DE19893905772 patent/DE3905772C2/en not_active Expired - Fee Related
-
1990
- 1990-02-22 GB GB9004004A patent/GB2229872B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1441808A (en) * | 1973-07-31 | 1976-07-07 | Coal Industry Patents Ltd | Intrinsically safe power supply apparatus |
GB1495456A (en) * | 1974-03-06 | 1977-12-21 | Ducellier & Cie | Low consumption electronic apparatus |
US4630162A (en) * | 1984-07-31 | 1986-12-16 | Texas Instruments Incorporated | ESD input protection circuit |
EP0372673A2 (en) * | 1988-12-08 | 1990-06-13 | Nortel Networks Corporation | Telephone protection circuit |
Also Published As
Publication number | Publication date |
---|---|
GB2229872A (en) | 1990-10-03 |
GB9004004D0 (en) | 1990-04-18 |
DE3905772C1 (en) | 1990-09-13 |
DE3905772C2 (en) | 1996-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940222 |