Real-time temperature monitoring and alarming for critical electrical connection nodes inside medium and high voltage switchgear, from 0.4kV LV panels up to 35kV MV/HV switchgear — busbar, power cable, cable-to-busbar connections, circuit breaker moving and fixed contacts — to prevent fire hazards caused by overheating.

As long as current flows through electrical equipment, heat is generated and temperature rises. In power systems, many major accidents are caused by the overheating of electrical equipment — often starting from a single loose or aged connection node inside 35kV and below switchgear.

If potential overheating hazards can be detected in time and maintenance or repair measures are taken promptly, operational accidents in the power supply system are greatly reduced and supply reliability is improved. This solution continuously watches these hotspots and alarms before they become failures.

ATE400 sensors strap directly onto the hottest connection points of medium and high voltage switchgear — no wiring on live parts, no outage, no battery. Typical installation positions shown below.

Acrel provides complete monitoring from 110kV substation down to IT racks. This page focuses on ATE400 wireless temperature monitoring at the MV switchgear layer — the upstream product of data center power distribution. Click any stage to explore its solution.

Both options start with the same ATE400 wireless sensors on every connection node. Choose how you want to receive the temperature data.

From MV switchgear to LV cabinets, power boxes and dry-type transformers — sensors, transceivers, gateway and EMS platform form one complete wireless temperature monitoring system for industries from steel and chemical plants to airports and large buildings.

Get datasheets, quotations and configuration support for your 35kV medium and high voltage switchgear temperature monitoring project. Our specialist responds within 24 hours.