Operating Mode

In continuous operation (CO), a transformer is operated indefinitely.

In short-time operation (STO), a (cold) transformer is operated for a certain period, allowing it to return to ambient temperature before the next cycle.

In intermittent operation (IO), a transformer is operated in a series of defined identical cycles.

It is practical for the user to specify their varying loads and the respective subsequent breaks for the “worst-case scenario” in minutes or hours. The indication of STO and IO in percent is often misleading.

BREMER transformers are always dimensioned for years of continuous operation unless otherwise specified.