Variable Voltage Transformers/Regulators, Stabilizers, & Power Supplies

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Phenix Technologies manufactures an extensive line of voltage regulators to accommodate the enormous variety of electrical equipment in use today. They provide an adjustable output voltage whenever a continuous regulation of AC voltage with load is necessary.

Phenix Technologies offers:

  • AC voltage regulators with ratings up to 15 MVA
  • Standard input voltages from 120 volts to 13.8 kV
  • Three designs:

TOVT’s offer continuously adjustable output voltage for inputs ranging from 120 to 600 Volts AC and provide output voltage as a percent of input voltage over a range of either 0 to 100% or 0 to 117%.
CTVT’s offer continuously adjustable output voltage for inputs from 240 to 600 Volts AC. The CTVT regulates large throughput powers without the mechanical complexity of ganging TOVT units.
THVT’s are ideal for any application in which continuously infinitely variable high voltage/high power is required.



Phenix Technologies wide variety of voltage stabilizers are used to provide a regulated AC voltage to equipment which is not tolerant of variations in line voltage or in installations where any unacceptable variations in line voltage exist The units can be used to protect expensive equipment in an industrial environment and/or protect office and household appliances and machines.

    • Designed to operate reliably in the most adverse conditions.
    • Full power throughput and 24 hour continuous operation.
    • Completely enclosed, self-contained units.
    • One of three types of electromechanical regulators are used depending on power requirements.


Phenix Technologies builds customized power supplies to meet applications that require any range of output AC or DC voltage and power and intended to provide regulated power for industrial applications. Please contact one of our regional sales managers to discuss your requirements.


Phenix Technologies has designed a versatile, portable AC power source that provides a much needed variable voltage AC source for the service technician. A wide variety of circuits and components can be energized for troubleshooting and repair. This power supply is a necessity for all in-shop and field-service electrical technicians.

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