AU3517171A - Switching apparatus - Google Patents
Switching apparatusInfo
- Publication number
- AU3517171A AU3517171A AU35171/71A AU3517171A AU3517171A AU 3517171 A AU3517171 A AU 3517171A AU 35171/71 A AU35171/71 A AU 35171/71A AU 3517171 A AU3517171 A AU 3517171A AU 3517171 A AU3517171 A AU 3517171A
- Authority
- AU
- Australia
- Prior art keywords
- switching apparatus
- switching
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
- H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5478070 | 1970-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU3517171A true AU3517171A (en) | 1973-05-03 |
Family
ID=10472059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU35171/71A Expired AU3517171A (en) | 1970-11-18 | 1971-10-29 | Switching apparatus |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU3517171A (en) |
| GB (1) | GB1348494A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279976B (en) * | 2021-03-12 | 2023-03-28 | 机械工业第九设计研究院股份有限公司 | Control method for directly starting fire-fighting water pump by pressure switch of alarm valve set |
-
1971
- 1971-10-20 GB GB1348494D patent/GB1348494A/en not_active Expired
- 1971-10-29 AU AU35171/71A patent/AU3517171A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1348494A (en) | 1974-03-20 |
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