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Insulator Intermittent Fault

Intermittent faults can cause prolonged downtime and safety hazards.

Insulator Intermittent Fault

Introduction

In Australia, Early Fault Detection (EFD) identified a tracking insulator that led to intermittent transient faults on a key transmission where reliability was of the upmost importance. The issue was detected remotely by the EFD system, enabling prompt, focused maintenance to prevent future faults.

Early detection of the tracking insulator improved uptime, ensuring continuous operation of the crucial transmission line.

Preventing future faults saved the operator from costly repairs and potential revenue losses.

Addressing the issue early prevented safety hazards, protecting both crew members and the public.

Summary

The EFD system flagged the exact location where a tracking insulator was leading to intermittent transient faults, which was unable to be found by system operators previously. This led to consistent downtime of a crucial transmission line.

By detecting the issue early, the EFD system enabled swift, targeted maintenance to replace the tracking insulator. This proactive approach helped increase circuit uptime and improve overall system reliability, which translated to operational savings for the operator and stunted future economic consequences while avoiding safety hazards for their crews and the public.

Testimonials

Eliminating customer outages, driving affordability because we can efficiently group our work instead of heading out to fix things whenever they fail, and dearest to my heart, risk management – not just put in better protection to respond to faults and limit consequences, but actually manage the risk of faults happening – all I can say is this tech is magic.

Jeff Hackman
Senior Director, Ameren (USA)

The results have been very promising, and it’s worked the way it’s designed to. We’ll let the trial play out and then we’ll look at the deployment across our network.

Steve Neaves
General Manager, Powercor (Australia)

IND T.’s innovative EFD technology enables utilities to monitor “the heartbeat of the grid” in near real-time. With this technology, utilities can implement prescriptive maintenance and detect incipient faults on the modern grid, providing immediate, tangible benefits. This enhances the products and services we offer, supporting a clean, reliable, and safe energy future for our customers.

Source: Article from “EPRI 2023 Technology Transfer Award Winner, National Grid” on T&D World Website, published on 6 January 2025.

John-Paul Knauss
Head of R&D and Innovation, National Grid (USA)
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