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

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.
Have a similar asset at your plant?
Tell us which asset worries you most (busbars, motors, panels, chillers), and we'll show you what an OctosX deployment there would look like.


