Power transmission line one-terminal fault location method based on faulty traveling wave distribution characters along the line within two successive time windows
A transmission line, fault location technology, applied in the fault location, detection of faults by conductor type, etc., can solve the problem of high requirements for accurate clock synchronization
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0085] use as figure 1 In the transmission line shown, the M terminal is in the form of "two-in-one-out" busbar connection, and the sound line l Mk1 = 50km, the end of the sound line is a type III busbar connection, and the length of the faulty line MN is l = 150km. Assuming that a phase A ground fault occurs at a distance of 70km from terminal M within the half-line length of line MN, the traveling voltage and current traveling waves obtained at the measuring terminal are as follows: figure 2 and image 3 shown. The calculation step along the line is 0.1km, respectively in two consecutive time windows [k 0 ,k 0 +l / (2v)] and [k 0 +l / (2v),k 0 +l / v] Calculate the ranging function f of the measuring terminal M uI (x) and f uII (x) The distribution results along the length of the whole line are as follows: Figure 4 and Figure 5 shown. Depend on Figure 4 It can be seen that [k 0 ,k 0 +l / (2v)] time window, f uI (x) mutation point A (x) = 69.8km, and the polarity i...
Embodiment 2
[0087] use as figure 1 In the transmission line shown, the M terminal is in the form of "two-in-one-out" busbar connection, and the sound line l Mk1 = 50km, the end of the sound line is a type III busbar connection, and the length of the faulty line MN is l = 150km. Assuming that a phase A ground fault occurs at a distance of 80km from terminal M beyond the half-line length of line MN, the traveling voltage and current traveling waves obtained at the measuring terminal are as follows: Figure 6 and Figure 7 shown. The calculation step along the line is 0.1km, respectively in two consecutive time windows [k 0 ,k 0 +l / (2v)] and [k 0 +l / (2v),k 0 +l / v] Calculate the ranging function f of the measuring terminal M uI (x) and f uII (x) The distribution results along the length of the whole line are as follows: Figure 8 and Figure 9 shown. Depend on Figure 8 It can be seen that [k 0 ,k 0 +l / (2v)] time window, f uI (x) mutation point B (x) = 69.7km, and the polarity ...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com