Thermalpas field deployment (Taiwan) · Power & Electrical

Industrial substation: HV busbar inspections scheduled by data

Self-powered Thermalpas modules on three-phase busbars inside high-voltage cabinets.

  • 30Sensors deployed
  • $1.2MLost production per shutdown inspection
  • Year 1Site-reported payback
Confidential: field installation photo, HV busbars
Field installation photo · Confidential

The problem

In a high-voltage cabinet, three-phase busbars route through the enclosure on porcelain insulators with finger-thick air gaps between them. The traditional way to check busbar temperatures was to shut the cabinet down, open the door, and bring in a thermal-imaging crew — and in a busy substation, the shutdown itself is a million-dollar event.

What was installed

Self-powered Thermalpas modules were attached to each busbar, drawing operating energy from the magnetic field around the conductor, so no power wiring runs between phases. Each module reports to a gateway on the cabinet wall, and the dashboard shows real-time three-phase balance — when one phase warms differently from the other two, the engineer sees it immediately.

The outcome

A mid-sized industrial substation instrumented 30 sensors. It previously ran four shutdown inspections a year, each costing about $1.2 million in lost production. With continuous data, inspections are now scheduled only when the readings warrant them, and the site reports payback inside the first year.

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