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BG50242A1 - Device for determining a failure point in high voltage power lines - Google Patents

Device for determining a failure point in high voltage power lines

Info

Publication number
BG50242A1
BG50242A1 BG9197390A BG9197390A BG50242A1 BG 50242 A1 BG50242 A1 BG 50242A1 BG 9197390 A BG9197390 A BG 9197390A BG 9197390 A BG9197390 A BG 9197390A BG 50242 A1 BG50242 A1 BG 50242A1
Authority
BG
Bulgaria
Prior art keywords
failure
phase
power lines
failure point
high voltage
Prior art date
Application number
BG9197390A
Inventor
Petar M Nakov
Petar G Toshev
Nedelcho P Kandev
Original Assignee
Predprijatie Elektrosnabdjavan
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 Predprijatie Elektrosnabdjavan filed Critical Predprijatie Elektrosnabdjavan
Priority to BG9197390A priority Critical patent/BG50242A1/en
Publication of BG50242A1 publication Critical patent/BG50242A1/en

Links

Landscapes

  • Locating Faults (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The device can be used in power supplies, more specifically in the failure sites control in cable and overhead power lines. It has an increased accuracy, by measuring the distance to the failure site in the air power lines. The accuracy is increased by comparing the reflected signals by a power line for high voltage of a phase with a failure point and a phase without a failure point under the influence of a high pulse voltage. Then the time of the appearance of the first reflected signal from the failure site is determined by comparing the difference of the reflectograms of a phase with and a phase without a failure point of two suitably selected levels over the noise level. In the device, an analyser of the failure type and phase is build in.
BG9197390A 1990-05-10 1990-05-10 Device for determining a failure point in high voltage power lines BG50242A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9197390A BG50242A1 (en) 1990-05-10 1990-05-10 Device for determining a failure point in high voltage power lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9197390A BG50242A1 (en) 1990-05-10 1990-05-10 Device for determining a failure point in high voltage power lines

Publications (1)

Publication Number Publication Date
BG50242A1 true BG50242A1 (en) 1992-06-15

Family

ID=3922955

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9197390A BG50242A1 (en) 1990-05-10 1990-05-10 Device for determining a failure point in high voltage power lines

Country Status (1)

Country Link
BG (1) BG50242A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278742A (en) * 2013-05-10 2013-09-04 国家电网公司 Line single-phase earthing fault single-end ranging method realized by utilizing voltage drop imaginary part characteristics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278742A (en) * 2013-05-10 2013-09-04 国家电网公司 Line single-phase earthing fault single-end ranging method realized by utilizing voltage drop imaginary part characteristics
CN103278742B (en) * 2013-05-10 2015-11-11 国家电网公司 Voltage drop imaginary part characteristic is utilized to realize line single-phase earth fault single-terminal location method

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