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Variable Auto-Transformer (Dimmer or Variac)
Variable Auto-Transformer (Dimmer or Variac)
Arkay Electronic Systems offers a Variable Auto-Transformer, also known as a Dimmer or Variac. The importance of continuously variable voltage in electrical engineering works cannot be overemphasized. Arkay 'Varistat' are made to make such continuously variable voltage most easily available. The intrinsic quality control check-ups under the supervision of highly experienced engineers ensure the ruggedness and reliability of operation. Varistat are available in a wide range of models to suit various requirements.
These include: Open – for panel mounting purpose; Enclosed – suitable for table mounting; Portable – with or without meters; Oil cooled – for increased ratings; Double wound – where the primary is isolated from the secondary prominent for manufacturer of servo-control voltage stabilizer; High frequency – for various loads; and Special voltage – 120 V, 240 V, 400 V, etc.
The company also offers Voltage Stabiliser, Servo Controlled, Isolation Transformer, etc.
Varistat continuously variable auto-transformers have many operating advantages and conveniences over other manually operated voltage control devices for alternating current use: smooth control – can be set to any output voltage within its range, continuously adjustable from zero to maximum; small size – much smaller than any other type of control of equal rating; better efficiency – very low losses under all loud conditions; better regulation – output voltage is substantially independent of load; linear output voltage varies linearly with angle of rotation of control knob; temperature rise – less than 50°C for continuous duty; Advanced Design – Excellent electrical specification is matched by rugged, compact construction; long life – essentially the same as that of any standard fixed ratio power transformer; and all Varistat units conform to ISS 5142-1969.
