BE738294A - - Google Patents
Info
- Publication number
- BE738294A BE738294A BE738294DA BE738294A BE 738294 A BE738294 A BE 738294A BE 738294D A BE738294D A BE 738294DA BE 738294 A BE738294 A BE 738294A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Protection Of Generators And Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1319968A CH488305A (en) | 1968-09-03 | 1968-09-03 | Earth-fault protection device for three-phase generators using the third harmonics generated in the generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE738294A true BE738294A (en) | 1970-02-16 |
Family
ID=4390259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE738294D BE738294A (en) | 1968-09-03 | 1969-09-01 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE738294A (en) |
| CH (1) | CH488305A (en) |
| DE (1) | DE1803858A1 (en) |
| FR (1) | FR2017260A1 (en) |
| GB (1) | GB1280704A (en) |
| NL (1) | NL6913295A (en) |
| SE (1) | SE355444B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671252A (en) * | 2021-07-02 | 2021-11-19 | 浙江中广电器股份有限公司 | Power supply protection device and method of air source heat pump unit and storage medium |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3928551A1 (en) * | 1989-08-29 | 1991-03-07 | Siemens Ag | Short circuit detecting circuitry for three=phase machine - uses relays with resistors and filters to detect displacement voltages of third harmonic and fundamental frequency |
| AT401443B (en) * | 1993-08-19 | 1996-09-25 | Elin Energieversorgung | ARRANGEMENT FOR DETECTING STANDSTAND LOCKS IN THREE-PHASE MACHINES |
| WO2003044545A1 (en) * | 2001-11-19 | 2003-05-30 | Alstom Technology Ltd | Method for the detection of an earth connection occurring in the vicinity of a neutral point in an electrical device, device for carrying out and application of said method |
| CN106291434B (en) * | 2016-10-26 | 2023-04-18 | 广东电网有限责任公司揭阳供电局 | Method and system for monitoring primary grounding state of capacitive voltage transformer |
-
1968
- 1968-09-03 CH CH1319968A patent/CH488305A/en not_active IP Right Cessation
- 1968-10-18 DE DE19681803858 patent/DE1803858A1/en active Pending
-
1969
- 1969-09-01 BE BE738294D patent/BE738294A/xx unknown
- 1969-09-01 SE SE1207069A patent/SE355444B/xx unknown
- 1969-09-01 FR FR6929799A patent/FR2017260A1/fr not_active Withdrawn
- 1969-09-01 NL NL6913295A patent/NL6913295A/xx unknown
- 1969-09-02 GB GB4338769A patent/GB1280704A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671252A (en) * | 2021-07-02 | 2021-11-19 | 浙江中广电器股份有限公司 | Power supply protection device and method of air source heat pump unit and storage medium |
| CN113671252B (en) * | 2021-07-02 | 2024-05-17 | 浙江中广电器集团股份有限公司 | Power supply protection device and method for air source heat pump unit and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CH488305A (en) | 1970-03-31 |
| GB1280704A (en) | 1972-07-05 |
| SE355444B (en) | 1973-04-16 |
| NL6913295A (en) | 1970-03-05 |
| FR2017260A1 (en) | 1970-05-22 |
| DE1803858A1 (en) | 1970-03-12 |