EPRI Insulator Leakage Current Monitor: long rod, disc and composite

What: 

The EPRI Insulator Leakage Current Monitor is a robust, low-cost device designed to measure leakage currents across various types of insulators, including long rod, composite, and glass or porcelain disc insulators. It addresses issues related to contamination, washing, and the degradation of polymers. The monitor wirelessly reports measurement data and status via a radio frequency (RF) link to a base station, which aggregates, stores, and transmits the data.
  • What1 LQ.jpg Customer site installation

How:

The device measures leakage current using a high wattage shunt resistor, enhancing resiliency of the device during flashover events and reducing impedance. It continuously monitors both AC and DC leakage current, storing peak values over adjustable periods. The system features a secure, two-way communication protocol for remote adjustments. The monitors are designed for easy installation at the grounded end of insulators, with different attachment methods for various insulator types. 
  • How1 LQ.jpg Post leakage monitor site installation
  • How 2.jpg Customer site installation

Why:

The EPRI Insulator Leakage Current Monitor is used to understand the reliability and longevity of power transmission systems by detecting and addressing contamination and degradation issues in insulators. By providing real-time data and alerts, it helps utility companies schedule timely maintenance, such as washing insulators, and mitigate high flashover risks. The advanced analytics tools also allow for long-term evaluation of insulator performance and the effectiveness of mitigation solutions.
  • Why2025-01-09 15_40_21-CenterPoint Stewart_2022_Le — Mozilla Firefox.png Leakage current and relative humidity data