Dimmer Dot Variable Auto Transformers | One & Three Phased Air Cooled

Applications

• Control of AC voltage and current in testing and developing work.
• Over voltage and under voltage tests.
• New or faulty electrical equipment – appliance testing. Gradual application of voltage to detect for any high fault current.
• Lighting control in theatres, auditoriums, photographic studios, dark rooms, hotels, restaurants, rearing houses, etc.
  (Not recommended for discharge on hot-cathode fluorescent lighting).
  DC voltage and current control of rectifiers, such as rectifiers for
• Electroplating, Electrowinning, Anodising, Precious Metal Recovery, Hydrogenation,
• Cathodic Protection, Battery plate forming.
• Voltage control in DC power supplies and constant current supplies.
• Regulated Output voltage control for Motor Servo type AC Stabilisers and Automatic Stabilisers
• Voltage control for meter calibration, phase-angle control in the calibration of Watt meters and Power factor meters.
• Motor speed control.
• Control of electric heaters, furnaces and ovens in laboratory, pilot plant and production lines.
• Current control for testing of circuit breakers, relays, current transformers, etc.
• Testing of magnetic materials.

Single Phase Air Cooled - Open back / Panel mount (OB)

• Open back / Panel mounts (OB) are designed to be mounted behind a panel for easy installation into electrical enclosures, where only the support bolts and control knob are protruding.

Single Phase Air Cooled - Portable / Bench top (P)

• Portable / Bench top (P) are designed to sit on a bench or floor.

Three Phase Air Cooled - Open back / Panel Mount (OB)

• Open back / Panel mounts (OB) are designed to be mounted behind a panel for easy installation into electrical enclosures, where only the support bolts and control knob are protruding.

Three Phase Air Cooled - Portable / Bench Top (P)

• Portable / Bench tops (P) are designed to sit on a bench or floor.