SE8002037L - SETTING AND DEVICE FOR DIRECTION DETECTION - Google Patents

SETTING AND DEVICE FOR DIRECTION DETECTION

Info

Publication number
SE8002037L
SE8002037L SE8002037A SE8002037A SE8002037L SE 8002037 L SE8002037 L SE 8002037L SE 8002037 A SE8002037 A SE 8002037A SE 8002037 A SE8002037 A SE 8002037A SE 8002037 L SE8002037 L SE 8002037L
Authority
SE
Sweden
Prior art keywords
measuring
phase
fault
measuring voltage
errors
Prior art date
Application number
SE8002037A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE446143B (en
Inventor
Mesmaeker I De
P Muller
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of SE8002037L publication Critical patent/SE8002037L/en
Publication of SE446143B publication Critical patent/SE446143B/en

Links

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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)
  • Measuring Phase Differences (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The detection of the direction of a fault on an electrical transmission line in the case of faults close to the measuring station is problematical because of the low measuring voltage, particularly for bipolar short-circuits, with which the measuring voltage UK appears as the difference between the phase voltages U'S, U'T which have a small difference in phase angle. Measuring errors and deviations in the measuring channels can then lead to extensive errors in the decision regarding direction. The invention solves this problem by introducing an additional phase angle alpha into the phase position of at least one of the phase voltages U''T used for the formation of the fault measuring voltage UK. <IMAGE>
SE8002037A 1979-03-20 1980-03-14 SET AND DEVICE FOR DIRECTIONAL DETECTION IN AN ELECTRIC MULTI-PHASET SE446143B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH259779A CH655621B (en) 1979-03-20 1979-03-20

Publications (2)

Publication Number Publication Date
SE8002037L true SE8002037L (en) 1980-09-21
SE446143B SE446143B (en) 1986-08-11

Family

ID=4237347

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002037A SE446143B (en) 1979-03-20 1980-03-14 SET AND DEVICE FOR DIRECTIONAL DETECTION IN AN ELECTRIC MULTI-PHASET

Country Status (6)

Country Link
CH (1) CH655621B (en)
DE (1) DE2914900C2 (en)
FR (1) FR2452114A1 (en)
GB (1) GB2046039B (en)
NL (1) NL8001554A (en)
SE (1) SE446143B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2689507B1 (en) * 2011-03-24 2017-07-19 Siemens Aktiengesellschaft Determining the direction of intermittent earth faults in energy supply networks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE302638B (en) * 1964-06-26 1968-07-29 Siemens Ag
CH560477A5 (en) * 1973-05-30 1975-03-27 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
GB2046039A (en) 1980-11-05
FR2452114A1 (en) 1980-10-17
NL8001554A (en) 1980-09-23
DE2914900C2 (en) 1985-01-31
CH655621B (en) 1986-04-30
GB2046039B (en) 1982-11-10
SE446143B (en) 1986-08-11
DE2914900A1 (en) 1980-10-02

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