CH609487A5 - Directional relay for network protection and use of the same for interlock protection in mesh-connected networks - Google Patents
Directional relay for network protection and use of the same for interlock protection in mesh-connected networksInfo
- Publication number
- CH609487A5 CH609487A5 CH838776A CH838776A CH609487A5 CH 609487 A5 CH609487 A5 CH 609487A5 CH 838776 A CH838776 A CH 838776A CH 838776 A CH838776 A CH 838776A CH 609487 A5 CH609487 A5 CH 609487A5
- Authority
- CH
- Switzerland
- Prior art keywords
- overcurrent
- signal
- signals
- undirected
- directed
- Prior art date
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
- H02H7/26—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
- H02H7/28—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 meshed systems
-
- 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
- H02H7/261—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 involving signal transmission between at least two stations
- H02H7/262—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 involving signal transmission between at least two stations involving transmissions of switching or blocking orders
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
It is desired to make the directional relay, in the case of which an undirected overcurrent signal and a directed overcurrent signal which indicates the direction of the power to the defect location in the event of a defect, that is to say a binary direction signal, is obtained also usable for interlock protection of a mesh-connected network, by means of an indexing drive. The connection of a logic additional circuit (57) to the output connection (17a) (which carries the directed overcurrent signals) of a direction memory (17) and to an output connection (10a) which carries the undirected overcurrent signals is provided for this purpose. This additional circuit contains switching means of producing blocking signals from the directed and undirected overcurrent signals on at least one output pilot line and a logic operation circuit for the undirected overcurrent signals, the directed overcurrent signals and the blocking signals which are received from at least one input pilot line, in order to produce a tripping signal for the indexing drive (19) when no blocking signal is present in the case of an undirected overcurrent signal for the relevant directed overcurrent signal. The selective disconnection of a defect point requires a command time of only approximately 100 ms. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH838776A CH609487A5 (en) | 1976-06-30 | 1976-06-30 | Directional relay for network protection and use of the same for interlock protection in mesh-connected networks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH838776A CH609487A5 (en) | 1976-06-30 | 1976-06-30 | Directional relay for network protection and use of the same for interlock protection in mesh-connected networks |
Publications (1)
Publication Number | Publication Date |
---|---|
CH609487A5 true CH609487A5 (en) | 1979-02-28 |
Family
ID=4339534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH838776A CH609487A5 (en) | 1976-06-30 | 1976-06-30 | Directional relay for network protection and use of the same for interlock protection in mesh-connected networks |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH609487A5 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0269952A2 (en) * | 1986-11-25 | 1988-06-08 | VEB Elektroprojekt und Anlagenbau Berlin | Fault-tolerant ring power supply system |
EP0272460A1 (en) * | 1986-11-25 | 1988-06-29 | Geräte- und Regler-Werk Leipzig GmbH | Process and power supply system for the redundant power supply of spaced-apart users |
DE102010041495A1 (en) * | 2010-09-28 | 2012-03-29 | Siemens Aktiengesellschaft | Protective switching device with digital data processing device |
-
1976
- 1976-06-30 CH CH838776A patent/CH609487A5/en not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0269952A2 (en) * | 1986-11-25 | 1988-06-08 | VEB Elektroprojekt und Anlagenbau Berlin | Fault-tolerant ring power supply system |
EP0272460A1 (en) * | 1986-11-25 | 1988-06-29 | Geräte- und Regler-Werk Leipzig GmbH | Process and power supply system for the redundant power supply of spaced-apart users |
EP0269952A3 (en) * | 1986-11-25 | 1988-07-06 | VEB Elektroprojekt und Anlagenbau Berlin | Fault-tolerant ring power supply system |
DE102010041495A1 (en) * | 2010-09-28 | 2012-03-29 | Siemens Aktiengesellschaft | Protective switching device with digital data processing device |
CN102570411A (en) * | 2010-09-28 | 2012-07-11 | 西门子公司 | Circuit breaker with a digital data processing device |
CN102570411B (en) * | 2010-09-28 | 2015-03-11 | 西门子公司 | Circuit breaker with a digital data processing device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |