regulator control
Regulator control.
Voltage provided by regulators is changed using a tap-changing switch to adjust the number of secondary windings. Line load can be regulated from 10 percent above to 10 percent below normal line voltage. Voltage regulators that control distribution system voltage are rated from 2.5 kV to 34.5 grd Y kV. Most feeder regulators have the 32-step design.
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