Sensor Projects

Project Summaries

Additional Information

  • Project Summaries by Phase

    This page presents EPRI's active projects grouped by the current project phase (R&D, Development, Testing, Demonstration, and Commercialization).

    View Projects by Phase
  • Interactive Map of Demonstration Sites

    This page presents an interactive map showing the locations of EPRI's current demonstration projects and the technologies being demonstrated.
    View Map of Demonstration Sites

Road Maps

EPRI is conducting research and development in a wide range of areas related to sensors. Detailed summaries of individual projects are listed below alphabetically by area.

Assessment of Transmission Line Sensors
Assessment of Transmission Line Sensors

In addition to developing a suite of Transmission Line sensors, EPRI has been testing and evaluating a range of other sensor technologies.

Conductor/Connector Sensor
Conductor/Connector Sensor

This project is developing and demonstrating low-cost RF sensors to assess conductors and compression connectors on overhead transmission lines.

Fault Current/Lightning Sensor
Fault Current/Lightning Sensor

This project is developing an RF sensor that is installed either on the shield wire or the down conductor of a transmission line to continually measure the magnitude and time of both fault and lightning currents.

Image Processing for Transmission Lines
Image Processing for Transmission Lines

This project is developing image processing cameras that can be installed on transmission lines to automatically measure and report activity.

Suspension Insulator Leakage Current Sensor
Suspension Insulator Leakage Current Sensor

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.

Vibration Sensor Suite
Vibration Sensor Suite

This project is developing a suite of low-cost RF sensors that measure vibration in three axes. The sensors can report the results in real-time or store the results for future analysis.

Oil Pressure Sensor
Oil Pressure Sensor

This project is developing an RF sensor for measuring oil pressure in components, such as oil-filled terminations. The RF sensor uses a 4-20mA input so the sensor can be applied in a range of other applications.

Underground Transmission Sensors
Underground Transmission Sensors

This project is to investigate, evaluate, and demonstrate technologies in extruded dielectric transmission cable system monitoring.

3D Acoustic Emission Transformer Monitoring
3D Acoustic Emission Transformer Monitoring

The project goals are to explore improved techniques and algorithms for diagnosis of power transformers using Acoustic Emission.

Assessment of Substation Sensors
Assessment of Substation Sensors

Condition monitoring of substation equipment has an inherent value based on preventing failure; maximizing future operation of the equipment; appropriately scheduling and determining the extent of inspections and maintenance; providing for personnel safety; and protecting the environment.

GIC Monitor
GIC Monitor

EPRI has a network of sensors on the neutrals of large network transformers that are susceptible to GICs (Geomagnetically Induced Currents).

MIS Sensor for Gas in Oil
MIS Sensor for Gas in Oil

The project goal is to develop a solid-state Hydrogen and Acetylene sensor for detecting these fault gasses within oil-insulated systems such as transformers, cables, or instrument transformers.

On-line FRA
On-line FRA

The project's goal is to perform field demonstrations of the concept of on-line Frequency Response Analysis (FRA).

On-line Infrared
On-line Infrared

This project aims to automate infrared substation inspections.

Post Insulator Leakage Current Sensor
Post Insulator Leakage Current Sensor

This project is developing an RF sensor that is installed at the base of either substation or transmission line post-type insulators.

SF6 Density Sensor
SF6 Density Sensor

The project goal is to investigate the capabilities of pressure, temperature, and density sensors to accurately measure low levels of SF6 leakage.

Substation-Wide RF Detection
Substation-Wide RF Detection

The project goal is to quantify and trend the RF signals across a large substation. The project concept is to adapt wireless mesh sensors (see project summary for Wireless Mesh) to be able to measure the local RF signals.

Wireless Acoustic Emission Sensors
Wireless Acoustic Emission Sensors

The project goal is to perform field demonstrations of wireless acoustic sensors to assess the benefits for diagnostics of substation apparatus

Wireless Mesh
Wireless Mesh

The project goal is first to explore the various power management approaches suitable for large lower-power wireless mesh deployments.

Power Harvesting for Sensors
Power Harvesting for Sensors

This project is to investigate the feasibility of robotic tools to inspect and maintain components within an underground cable vault.

Sensor Lab
Sensor Lab

The aim of this project is to develop a laboratory with a collection of sensors and sensor-enabling technologies for use with EPRI sensor-related projects.

Sensor-SCADA Integration
Sensor-SCADA Integration

The project aims to provide a standardized access to sensor data for utility RTU/SCADA systems, archive sensor data in local substation databases, and to provide advanced visualization and user interfaces.