Variable autotransformers​

VARIABLE AUTOTRANSFORMER

The BELOTTI autotransformer is an efficient, trouble-free device A.C. voltage control.

Belotti is a manufacturing of VARIAC since 1946, located in ITALY.

Main Features:

–  Easy to control with simple raise-lower switches or standard process controllers. Motor drive control provides complete isolation between power and control circuits.

– Belotti units are immune to power line noise.

– Do not produce harmonic distortion.

-Reduce utility bills.

-Avoid interference with other equipment.

-Produce an adjustable output voltage that is a sine wave. Only the voltage value changed; the shape of the voltage is not distorted.

– Handle all load power factors.

– Can be used to adjust banks of capacitors and/or inductors.

– Versatility of application

Applications:

  • Regulate voltage (over and under-voltage testing of electrical and electronic equipment).
  • Speed control
  • Used in Laboratory, test rooms, electrical panels or where a voltage variation from zero to line voltage or higher
  • Power supplies
  • Industrial process heating control
  • Source voltage & load banks for electrical testing:
  • circuit breaker, uninterruptible power supplies, generators etc
  • Control of D.C. voltage and current through rectifiers
  • Control of rectifiers in electroplating etc.
  • Supply voltage adjustment (automatic voltage stabilizers)..

Version:

Toroidal Variac up to 50kVA

Column Variac up to 500kVA and more

REGULATION SYSTEM:

Manual regulation with handle and graduated dial

Motorized regulation with motor AC

230V or DC 24V or 12V

The MOTORIZED REGULATION can be controlled by:

bottom “increase-decrease”

New electronic card RVP-600.

Variable autotransformers

The BELOTTI autotransformer is an efficient, trouble-free device for controlling A.C. voltage. Unlike most transformers, our voltage regulator has a transformation ratio that can be smoothly and continuosly changed so the output of the unit can be controlled from zero to line voltage or even higher.