POWERTECH

VARIACS


 

 

 

 


BELOTTI
Autotransformer/Variac



 

Power Newsletter March 2018

Variacs

Variacs are the most popular variable auto transformers (also known as adjustable voltage transformers) on the market because they are cheaper, lighter, and smaller than dual-winding transformers. They also have a staggering number of applications.

MasTec Ltd has a full range of Variac Auto transformers. We represent leading suppliers like Belotti of Italy and Powertech

The BELOTTI autotransformer is an efficient, trouble-free device for controlling A.C. voltage.
Unlike most transformers, it 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.

Features:


EFFICIENT - transforms power more efficiently than rheostats
DURABLE - because it runs cool (40/50° C max)
OVERLOAD-ABLE withstands 1000% overloads short term Power Products

Applications:

- Regulate voltage (over and under-voltage testing of electrical and electronic equipments).
- Speed control
- Lighting control in theatres, hotels, photographic studios
- Motor test stands
- Power supplies
- Industrial process heating control
- Source voltage & load banks for electrical testing:
• circuit breaker
• uninterruptible power supplies
• generators
- Control of D.C. voltage and current through rectifiers
- Control of rectifiers in electroplating etc.
- Supply voltage adjustment (automatic voltage stabilisers)

Powertech Variable Laboratory Autotransformer is one of the most useful and efficient devices ever invented for the control of AC votage and of voltage-dependent parameters such as current, power, temperature, light intensity, motor speed etc. It enables the AC input to a mains powered appliance to be easily varied from 0 to full line voltage (or greater)

View our variacs range here

 

 

 

 

 



Powertech
Variable Laboratory Autotransformer/Variac



   
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