Suspension Insulator Leakage Current Sensor

Suspension Insulator Leakage Current Sensor

Additional Information

Project Summary

This project is developing an RF sensor that clips onto the end of a transmission suspension insulator string to measure the leakage currents flowing on the insulator. The leakage currents are stored in histograms or reported real-time for analysis. Applications include:

  • Improving washing schedules
  • Understanding the contamination environment for dimensioning of insulators
  • Understanding the rate of aging

Project Status:

Project Phases: Development, Lab Testing, and Demonstration

The first versions of the sensors have been developed and deployed at three locations. Susceptibility to high magnetic fields in certain orientations was identified as an issue in one of the field applications. A revised design is being developed and tested in the laboratory to address this. Improvements in the manufacturability are also underway. Improvements in the RF transmission security and the addition of inclination and vibration to the sensors will be transferred from the conductor/connector sensor development.

Task Descriptions

Task Due Date Completed % Complete
Increase in RF transmission range 3/2011 95%
Reduction in susceptibility to high magnetic fields 6/2011 50%
Improvement in manufacturability 7/2011 40%

Videos

Sensor Components Animation
Sensor Components Animation
Sensor Installation Animation
Sensor Installation Animation

Images

Sensor Installed on Porcelain Insulator
Sensor Installed on Porcelain Insulator
Sensor Installed on Composite Insulator
Sensor Installed on Composite Insulator
Demonstration Site Map
Demonstration Site Map