Delta DLT SRV Series 33 LO Servo Voltage Stabilizer

The DELTA DLT SRV 33 series voltage regulators protect electronic equipment from power grid voltage fluctuations by rapidly regulating the output voltage. If the voltage falls outside the permissible input range (too high or too low), the unit cuts off the output via an electromechanical contactor, thereby isolating the load from unsuitable voltage levels. All models come standard with a manual bypass to allow the load to be powered during maintenance. Three-phase models feature independent phase regulation, ensuring voltage stability without phase imbalance. These regulators serve as reliable solutions, particularly for industrial applications. Voltage regulation is achieved by moving a wiper across the windings of a single transformer per phase; in three-phase models, regulation is performed independently for each phase. The output voltage is displayed on an analog or digital voltmeter. The input voltage range can be extended upon request, and permissible voltage limits within a given range can also be adjusted. Overcurrent protection is provided by an electromagnetic device, and internal cooling is handled by fans.