Three-phase electromechanic voltage stabilizer (regulated in common). Connections to terminals, stationary, incorporated in metal cabinets, Fitted with a voltmeter and pilot lamps, air conditioning on side or top, type of enclosure IP 54, safety class I, frequency 50/60 Hz, ta 40°C.
P: 15,0 - 500,0 kVAUPRI: 400 VUSEC: 400 V
Magnetic one-phase voltage stabilisers have input and output windings on one core, but they are well-isolated from each other by a shunt with a working air gap. They can accept various magnetic flows as a result. The resulting inductivity combines with a capacitor to form a resonance circuit. The result of the arising interdependencies is a stable output voltage.
Electronic three-phase voltage stabilisers offer very swift and flexible voltage stabilisation. An electronic output regulator feeds a voltage to the primary winding of a transformer in boost and buck connection, which can be can be either in or out of phase. The secondary winding is connected between input voltage and load. As a result, the output regulator can add or subtract voltage from the current supply.
Three-phase electromechanical voltage stabilisers regulate the voltage by means of an internal variable transformer in the form of a variable toroidal transformer with sliding contacts adjusted by electric motor. With its variable output voltage, the variable transformer compensates for fluctuations in the input AC voltage.