GB1411081A - Method for the proteciton of a dc power transmission system and apparatus for its realization - Google Patents
Method for the proteciton of a dc power transmission system and apparatus for its realizationInfo
- Publication number
- GB1411081A GB1411081A GB3194971A GB3194971A GB1411081A GB 1411081 A GB1411081 A GB 1411081A GB 3194971 A GB3194971 A GB 3194971A GB 3194971 A GB3194971 A GB 3194971A GB 1411081 A GB1411081 A GB 1411081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitance
- voltage
- resistance
- proteciton
- realization
- 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
- 230000005540 biological transmission Effects 0.000 title 1
- 230000001681 protective effect Effects 0.000 abstract 2
- 101100188552 Arabidopsis thaliana OCT3 gene Proteins 0.000 abstract 1
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
- H02H3/08—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 excess current
- H02H3/087—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 excess current for dc applications
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
-
- 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
- H02H3/44—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 the rate of change of electrical quantities
- H02H3/445—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 the rate of change of electrical quantities of DC quantities
-
- 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
- H02H3/46—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 frequency deviations
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Emergency Protection Circuit Devices (AREA)
- Locating Faults (AREA)
- Protection Of Static Devices (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
1411081 Protective arrangements MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT 3 Oct 1972 [7 July 1971] 31949/71 Heading H2K A D.C. power line protective system has a voltage sensor 7 at its input end arranged to provide an output voltage proportional to the line voltage and connected to a capacitance 11 in parallel with a resistance 12 and to a diode 13 in series therewith to provide an output signal across the diode terminals 14, 15 when the rate of change of the line voltage compared with the line voltage exceeds a reference value set by the values of the capacitance and resistance. A control element 10 across terminals 14, 15 provides an output signal which is used to disconnect the power line and activate a recloser (not shown).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA117,356A CA985367A (en) | 1971-07-05 | 1971-07-05 | Method for the protection of a.d.c. power transmission system and apparatus for its realization |
GB3194971A GB1411081A (en) | 1971-07-05 | 1971-07-07 | Method for the proteciton of a dc power transmission system and apparatus for its realization |
DE19712134920 DE2134920B2 (en) | 1971-07-05 | 1971-07-13 | DC power transmission system protection appts. - enhance sensitivity and speed of response to faults on power line |
SE09933/71A SE365663B (en) | 1971-07-05 | 1971-08-03 | |
JP5998971A JPS5332491B2 (en) | 1971-07-05 | 1971-08-10 | |
FR7129523A FR2148377B1 (en) | 1971-07-05 | 1971-08-12 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA117,356A CA985367A (en) | 1971-07-05 | 1971-07-05 | Method for the protection of a.d.c. power transmission system and apparatus for its realization |
GB3194971A GB1411081A (en) | 1971-07-05 | 1971-07-07 | Method for the proteciton of a dc power transmission system and apparatus for its realization |
DE19712134920 DE2134920B2 (en) | 1971-07-05 | 1971-07-13 | DC power transmission system protection appts. - enhance sensitivity and speed of response to faults on power line |
SE09933/71A SE365663B (en) | 1971-07-05 | 1971-08-03 | |
JP5998971A JPS5332491B2 (en) | 1971-07-05 | 1971-08-10 | |
FR7129523A FR2148377B1 (en) | 1971-07-05 | 1971-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1411081A true GB1411081A (en) | 1975-10-22 |
Family
ID=69645864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3194971A Expired GB1411081A (en) | 1971-07-05 | 1971-07-07 | Method for the proteciton of a dc power transmission system and apparatus for its realization |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5332491B2 (en) |
CA (1) | CA985367A (en) |
DE (1) | DE2134920B2 (en) |
FR (1) | FR2148377B1 (en) |
GB (1) | GB1411081A (en) |
SE (1) | SE365663B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013127438A1 (en) * | 2012-02-28 | 2013-09-06 | Abb Technology Ltd | A method and an apparatus for detecting a fault in an hvdc power transmission system |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE383590B (en) * | 1974-07-19 | 1976-03-15 | Asea Ab | RIGHTER STATION FOR HOGSPEND DC DIRECTION |
JPS54146815A (en) * | 1978-05-10 | 1979-11-16 | Hitachi Chemical Co Ltd | Production of metallic graphite brushes |
JPS61120419U (en) * | 1985-01-11 | 1986-07-29 | ||
JPH0440817Y2 (en) * | 1985-03-04 | 1992-09-25 | ||
JPH0537417U (en) * | 1991-10-16 | 1993-05-21 | 榮製機株式会社 | Gold saw band induction device for material cutting machine |
-
1971
- 1971-07-05 CA CA117,356A patent/CA985367A/en not_active Expired
- 1971-07-07 GB GB3194971A patent/GB1411081A/en not_active Expired
- 1971-07-13 DE DE19712134920 patent/DE2134920B2/en not_active Withdrawn
- 1971-08-03 SE SE09933/71A patent/SE365663B/xx unknown
- 1971-08-10 JP JP5998971A patent/JPS5332491B2/ja not_active Expired
- 1971-08-12 FR FR7129523A patent/FR2148377B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013127438A1 (en) * | 2012-02-28 | 2013-09-06 | Abb Technology Ltd | A method and an apparatus for detecting a fault in an hvdc power transmission system |
Also Published As
Publication number | Publication date |
---|---|
DE2134920A1 (en) | 1973-01-25 |
CA985367A (en) | 1976-03-09 |
JPS4825847A (en) | 1973-04-04 |
DE2134920B2 (en) | 1976-04-15 |
FR2148377A1 (en) | 1973-03-23 |
JPS5332491B2 (en) | 1978-09-08 |
FR2148377B1 (en) | 1975-07-11 |
SE365663B (en) | 1974-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |