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 networks

Info

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
Application number
CH838776A
Inventor
Ernst Egli
Original Assignee
Sprecher & Schuh Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sprecher & Schuh Ag filed Critical Sprecher & Schuh Ag
Priority to CH838776A priority Critical patent/CH609487A5/en
Publication of CH609487A5 publication Critical patent/CH609487A5/en

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>
CH838776A 1976-06-30 1976-06-30 Directional relay for network protection and use of the same for interlock protection in mesh-connected networks CH609487A5 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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