HT Cable Fault Location to meet some Challenges
The challenges of underground fault locating may be minimized significantly by understanding the equipment and techniques available.
Education and experience in cable fault locating will help correct and make improvements in interpreting of the results and definitely will help correct and make improvements in the selection of which equipment and technique is most appropriate for a particular task. However, only a high level of awareness is going to correct wasted time that is afforded through taking shortcuts.
Cable Fault Locator Market, Key Players are;
- Schneider Electric
- Megger
- Hubbell
- Fortive
- 3M
- HV Technologies
- High Voltage Inc
- Clinton Instrument
- Eaton
Cable Fault Locator Market Overview:
The Global Cable Fault Locator market was valued at US $798.6 Mn. in 2023, and it is expected to reach US $1,556.2 Mn. by 2029 with a CAGR of 10% during the forecast period. The process of locating periodic faults in cables, such as insulation faults, is known as cable fault location. Mobile shock discharge generators are one of the devices used in this process. To find a fault in a cable, it must first be checked for faults.
As a result, cable testing is normally done first when a cable failure is detected. During the cable test, flash-over are produced at the cable’s weak points, which can then be located.
Transpower Engineering Service has recently developed a highly versatile and cutting-edge vehicle-mounted cable fault location system that can be used for a variety of applications.
Comonly used terms
Capacitive Discharge Fault Locator an impulse designed type of thumper
Thumper a device that develops a HV pulse output to arc a cable fault
Joules the energy in a stored capacitor = ½ CV2
Burn a technique to deliver high current to a fault
TDR Time Domain Reflectometry HV Coupler Interface between
HV thumper and TDR/Radar instrument
Arc Reflection Reflecting a TDR pulse off the thumper arc to measure the distance
Current Surge A technique that reflects a TDR pulse off the fault arc to measure distance
URD Underground Residential Distribution.
There are different types of cable faults
- Screening faults
- Phase faults
- Sheath faults
- Faults due to moisture
- Disruptions
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