Step Voltage Regulator

SVR automatic feeder voltage regulator is tracking the variation in feeder voltage and changing the turn ratio of the built-in transformer, thus maintaining its output voltage within the permissible range. SVR functions satisfactorily when its input voltage fluctuates within 30% of its rating, ideal for feeder lines with large voltage drops and/or voltage fluctuations. Installed at the medium or receiving end of a feeder, SVR can effectively keep the user voltage at desired level and reduce power loss over the line. Moreover, SVR can also be applied to substations without on-load tap-changer transformers. Installed at the outgoing-line-side in such substations, SVR maintains the outlet bus voltage at specified values.
SVR has been patented for its originality (Patent NO 02 2 92527.9)

1. Features of SVR transformer:
a High precision: 7- or 9-step on-load regulation in the desired range of voltage;
a Long service life: novel design of taps suppresses arcing in switching, switching number a Y5,0000;
a Safety: fully-sealed design, high protection degree, excellent weather resistance;
a Flexibility: SVR can be mounted on feeder lines or in substations, can be taken out of service or blocked when necessary