VARIABLE AUTO TRANSFORMERS

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CONSTRUCTION

There is a single layer winding on toroidal core of high-grade cold rolled grain oriented (CRGO) steel

A contact arm with a carbon brush is fitted on the centre shaft

A special durable contact surface is made on one side of the copper winding and a specially finished carbon brush slide smoothly on the surface

As the control knob is rotated, the carbon brush slides over the winding

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Category: Transformers

Product Description

VARIABLE AUTO TRANSFORMERS

Variac or variable auto transformer manufactured by teczhar is available with AC control voltage controls that offer continuous AC voltage supply. Variac ensures a distortion free output that is suitable for sensitive electronic appliances and equipments in residential areas and industries. Manufactured with cutting-edge technology, these auto transformers ensure a consistent linear regulation of AC voltage to provide high output and negligible waveform distortion. It is suitable way of controlling current, light, heat and motor speed with a voltage factor. This transformer finds its wide applications in Auditorium, hotels, conference hall, laboratories, College & universities, Welding equipments, Servo stabilizer, rectifiers, battery charger and Testing instruments.

CONSTRUCTION

There is a single layer winding on toroidal core of high-grade cold rolled grain oriented (CRGO) steel

A contact arm with a carbon brush is fitted on the centre shaft

A special durable contact surface is made on one side of the copper winding and a specially finished carbon brush slide smoothly on the surface

As the control knob is rotated, the carbon brush slides over the winding

FEATURES

These step-up and step-down transformers are widely used for:

Can enhance the output voltage in excess of twice the input voltage

Low temperature rise

Any desired voltage within the maximum range can be obtained by adjusting the carbon brush

Wide assortment of current rating 4 Amp. To 1200 Amp

Calibrated dial show approximately output voltage at no load

Spare carbon brushes provided up to 28 Amp

The contact arm can be moved both manually and by motor

High quality carbon brush

Delivers an output voltage from 0 to above line voltage

Step-less voltage control

Constructed with 99.9% pure copper

Short time overload capacity

High grade CRGO steel is used for constructing coils

Maintenance cost

APPLICATION

Auditorium, hotels, conference hall, laboratories etc.

Testing instruments

Servo stabilizer, rectifiers, battery charger

College & universities

Welding equipments