JPS474226A - - Google Patents
Info
- Publication number
- JPS474226A JPS474226A JP5683071A JP5683071A JPS474226A JP S474226 A JPS474226 A JP S474226A JP 5683071 A JP5683071 A JP 5683071A JP 5683071 A JP5683071 A JP 5683071A JP S474226 A JPS474226 A JP S474226A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6058470A | 1970-08-03 | 1970-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS474226A true JPS474226A (cg-RX-API-DMAC10.html) | 1972-03-01 |
Family
ID=22030431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5683071A Pending JPS474226A (cg-RX-API-DMAC10.html) | 1970-08-03 | 1971-07-30 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS474226A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2138804A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2101208B1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1361228A (cg-RX-API-DMAC10.html) |
| NL (1) | NL7110351A (cg-RX-API-DMAC10.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851337A (zh) * | 2021-10-27 | 2021-12-28 | 西安中熔电气股份有限公司 | 一种多路气压分配的激励保护装置 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247568A (en) * | 1990-08-30 | 1992-03-04 | Mk Electric Ltd | Circuitbreaker electrical control apparatus |
| US5184278A (en) * | 1990-11-28 | 1993-02-02 | Square D Company | Lighting control and emergy management system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065517B (cg-RX-API-DMAC10.html) * | 1959-09-17 |
-
1971
- 1971-07-06 GB GB3153771A patent/GB1361228A/en not_active Expired
- 1971-07-27 NL NL7110351A patent/NL7110351A/xx unknown
- 1971-07-30 JP JP5683071A patent/JPS474226A/ja active Pending
- 1971-08-03 DE DE19712138804 patent/DE2138804A1/de active Pending
- 1971-08-03 FR FR7128491A patent/FR2101208B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851337A (zh) * | 2021-10-27 | 2021-12-28 | 西安中熔电气股份有限公司 | 一种多路气压分配的激励保护装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2138804A1 (de) | 1972-02-10 |
| GB1361228A (en) | 1974-07-24 |
| NL7110351A (cg-RX-API-DMAC10.html) | 1972-02-07 |
| FR2101208B1 (cg-RX-API-DMAC10.html) | 1974-09-06 |
| FR2101208A1 (cg-RX-API-DMAC10.html) | 1972-03-31 |