Voltage Stabilizer

The Enerdoor voltage stabilizer series regulates voltage through a series of transformers. A static control circuit drives the variable autotransformer that supplies the required voltage to a series transformer, either in phase or out of phase, to bring the mains to the rated value. 

Three-phase stabilizers are available in two versions:
The models FINSTT and FINSTC perform voltage regulation by an average of three phases and are suitable for lines with balanced voltage and for an unbalance between phases up to 50%. These models are equipped with one stabilizing circuit to ensure a common regulation of the three-phase and may be connected to input mains without neutral.

The models FINSTTY and FINSTCY are equipped with one stabilizing circuit for each phase and are suitable for unbalanced mains with a maximum unbalance between phases up to 100%. For correct operation, the input line must be three-phase + neutral. Voltage regulators do not transform the voltage and therefore have the same output voltage as the input. When input and output voltages are different, an additional isolating transformer or auto-transformer is required.

To view the full voltage stabilizer brochure, please click here

FINSMC Single Phase Voltage Stabilizer

  • Nominal voltage 230 Vac
  • Rated power from 1 to 40 kVA
  • Very fast response time 
  • Voltage variation ± 30%
  • Square section linear core

FINSMT Single Phase Voltage Stabilizer

  • Nominal voltage 230 Vac
  • Rated power from 1 to 40 kVA
  • Compact housing
  • Fast response time
  • Voltage variation ± 30%
  • Toroidal core technology

FINSTC Three Phase Voltage Stabilizer

  • Nominal voltage 480 Vac
  • Rated power from 22 to 780 kVA
  • Very fast response time 
  • Voltage variation ± 30%
  • Square section linear core

FINSTCA Three Phase Asymmetric Voltage Stabilizer

  • Nominal voltage 480 Vac
  • Rated power from 55 to 800 kVA
  • Very fast response time 
  • Voltage variation + 15% to 35%
  • Square section linear core

FINSTCY Three Phase Asymmetric Voltage Stabilizer

  • Nominal voltage 480 Vac
  • Rated power from 48 to 4000 kVA
  • Very fast response time 
  • Voltage variation ± 30%
  • Square section linear core

FINSTT Three Phase Voltage Stabilizer

  • Nominal voltage 480 Vac
  • Rated Power from 3 to 31 kVA
  • Compact housing
  • Fast response time
  • Voltage variation ± 30%
  • Toroidal core technology

FINSTTA Three Phase Asymmetric Voltage Stabilizer

  • Nominal voltage 250 Vac
  • Rated Power from 3 to 40 kVA
  • Compact housing
  • Fast response time
  • Voltage variation + 15% to 35%
  • Toroidal core technology

FINSTTY Three Phase Asymmetric Voltage Stabilizer

  • Nominal voltage 480 Vac
  • Rated power from 3 to 120 kVA
  • Compact housing
  • Fast response time
  • Voltage variation ± 30%
  • Toroidal core technology
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