Eaton Electrical’s SRT is the first power conditioner to incorporate new technology that corrects voltage sags and maintains uptime and productivity. It corrects deeps sags down to 63% of nominal for single-phase sags (37% retained voltage), the most common type. The SRT responds within 1/8 of a cycle, corrects phase shifts and provides continuous voltage regulation.
The SRT is designed for low and medium voltage systems (208V to 15,000V) and is available in ratings from 25 KVA to 5 MVA. In addition, it requires no in-depth engineering study to select the appropriate model and requires no maintenance. Normally, a critical load profile and metering data review for site min/max load sag susceptibility is all that is required to select an SRT model.
The SRT power conditioner is a series connected, voltage compensation device. The unit operates in an online mode and continuously monitors input voltage. When a sag disturbance is detected, the unit reacts in 2 milliseconds (sub-cycle) and electronically synthesizes the voltage required to correct the sag. The series connected transformer produces a clean stabilized output.