SE9101993D0 - KRAFTNAETSREDUKTION - Google Patents

KRAFTNAETSREDUKTION

Info

Publication number
SE9101993D0
SE9101993D0 SE9101993A SE9101993A SE9101993D0 SE 9101993 D0 SE9101993 D0 SE 9101993D0 SE 9101993 A SE9101993 A SE 9101993A SE 9101993 A SE9101993 A SE 9101993A SE 9101993 D0 SE9101993 D0 SE 9101993D0
Authority
SE
Sweden
Prior art keywords
power line
stations
zbt
zat
equivalent
Prior art date
Application number
SE9101993A
Other languages
Swedish (sv)
Other versions
SE468690B (en
SE9101993L (en
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9101993A priority Critical patent/SE468690B/en
Publication of SE9101993D0 publication Critical patent/SE9101993D0/en
Publication of SE9101993L publication Critical patent/SE9101993L/en
Publication of SE468690B publication Critical patent/SE468690B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • 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

Abstract

Method for determining the distance to a fault on a power line with known line impedance ZL between two stations A, B forming part of a general network with a number of parallel lines and branches, reducing the general power network to a power line which is equivalent between the stations by means of reducing the general power network around the power line to a parallel impedance ZP connected to the power line, and assigning reduced source impedances ZAT, ZBT to the stations from the general power network, and assigning to the equivalent power line equivalent source impedances at the stations equal to ZAP = ZAT x ZP/(ZAT+ZP+ZBT) (1) ZBP = ZBT x ZP/(ZAT+ZP+ZBT) (2) and by supplying the equivalent source impedances ZAP and ZBP as input date to a fault locator intended to determine the distance to a fault located on the power line between the stations (Fig. 6). <IMAGE>
SE9101993A 1991-06-28 1991-06-28 Method for determining the distance to a fault on a power line SE468690B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9101993A SE468690B (en) 1991-06-28 1991-06-28 Method for determining the distance to a fault on a power line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101993A SE468690B (en) 1991-06-28 1991-06-28 Method for determining the distance to a fault on a power line

Publications (3)

Publication Number Publication Date
SE9101993D0 true SE9101993D0 (en) 1991-06-28
SE9101993L SE9101993L (en) 1992-12-29
SE468690B SE468690B (en) 1993-03-01

Family

ID=20383175

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101993A SE468690B (en) 1991-06-28 1991-06-28 Method for determining the distance to a fault on a power line

Country Status (1)

Country Link
SE (1) SE468690B (en)

Also Published As

Publication number Publication date
SE468690B (en) 1993-03-01
SE9101993L (en) 1992-12-29

Similar Documents

Publication Publication Date Title
SE9203071D0 (en) PROCEDURE AND DEVICE FOR MISCELLANEOUS FAULTY ON A POWER CORD
SE8505606L (en) COMMUNICATION TERMINAL AND ADAPTATION CIRCUIT FOR THIS
DE69019758T2 (en) BROADBAND SIGNAL TRANSMISSION.
SE8204981D0 (en) DISTRIBUTION DEVICE FOR A STATION AREA NETWORK
DE69129642D1 (en) Adaptation circuit for transmission lines
NO911440D0 (en) PROCEDURE FOR HEATING A TRANSPORT PIPE, AND TRANSPORT PIPE WITH HEATING.
DE68919676T2 (en) CONSTRUCTION OF AN ELECTRICAL CONNECTOR FOR SEPARATE CABLES.
US2943272A (en) Crosstalk cancellation in signal communication system
CA2217894A1 (en) Electrical connector
FI973168A0 (en) Data- and stroemtillfoersel foerverkligande kabelanpassning
NO932536D0 (en) LAST LIGHT
SE9101993D0 (en) KRAFTNAETSREDUKTION
SE9300193D0 (en) A METHOD AND SYSTEM FOR COMMUNICATING FROM THE SECONDARY SIDE OF AN ISOLATION TRANSFORMER, PARTICULAR IN A LAMP SUPERVISION SYSTEM FOR AIR FIELD LIGHTS
FI800918A (en) ANALYZING MEDIA FOER TVAOLEDAR-FYRLEDAR-OEVERGAONG I PCM-TIDSMULTIPLEXSYSTEM
DE69611981T2 (en) Circuit for matching the impedance of a power supply line
BR9306205A (en) Process to avoid auto-oscillation on a four-wire link together with echo cancellation performed with the aid of a filter
ATE181179T1 (en) BRANCH DEVICE FOR A SHIELDED CABLE
ES2074178T3 (en) PREPARED FOR EXTERNAL ANTIMICOTICOS OF IMIDAZOL.
DE59306942D1 (en) COAXIAL HIGH-FREQUENCY CONNECTOR FOR CONNECTING NUMEROUS COAXIAL CABLES
IT8367058A0 (en) LOW IMPEDANCE COMPLANAR TRANSMISSION LINE FOR MICROWAVES
ES512246A0 (en) &#34;AN ELECTRICAL INDUCTION APPARATUS, PARTICULARLY COMBINATION OF TRANSFORMERS&#34;.
GB2002613A (en) Impedance compensation of transmission lines
DE69124689T2 (en) Connector arrangement for coaxial cables
ATE34494T1 (en) ANTENNA SOCKET.
JPS57191187A (en) Cable connection room facility of marine structure

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 9101993-5

Format of ref document f/p: F