Portable - Closed Auto Transformer - Portable - Closed Auto Transformer Exporter, Manufacturer & Supplier, Mumbai, India

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Product Code : 11

Product Specification

Being incepted in the year 1982, we are one of the prominent manufacturers of Portable-Closed Auto Transformer in India. We fabricate this transformer with high quality raw materials. Further, we fabricate transformer according to standard and customized range. Our company fabricates customized product according to the clientâ€™s requirements

Salient Features

Rugged Construction : Variac Auto-transformers are designed for heavy duty trouble-free operation. All components are designed to give maximum life to the unit under extreme operating conditions. Except, for carbon tips, no other part needs any specific maintenance. Even carbon tips do not require to be changed frequently. This practically makes the VARIAC a maintenance free electrical equipment.
Excellent Regulation: The drop in voltage from "no load to full load" is minimal in Variac Auto-transformers.
High Efficiency: Careful copper, core selection and design assures the user of low watt loss, as compared to other types of controllers.
No Wave Form Distortion: VARIAC provides an output voltage wave-form, which is a faithful and distortionless replica of the input voltage wave-form.
Silver Plated Commutator: A special silver plating technique is used on the commutator enabling it to withstand high overloads and maintain constant contact drop. It also ensures smooth operation, long life and increased resistance to corrosion.
Low Operating Torque: A glass smooth commutator, special sintered bushings for the shaft and perfect assembling of the coils, results in low operating torque for all Variac Auto-transformers.
Smooth and Linear Output: As voltage between turns is small and as the brush-arm is in constant contact with more than one turn, harmful sparking is avoided and output voltage can be set very easily to a fraction of a volt from zero onwards by rotation of the knob.
Low Magnetizing Current: By using an adequate section of high quality grain oriented silicon steel, the iron losses in Variac, are controlled to the minimum, The no-load current in all Variac transformers, is invariably less than 5% of the rated current.
Negligible maintenance and trouble-free long life: Variac has been carefully designed. No special care has to be taken to maintain Variac Auto-transformers in-normal- working environments. The only components needing inspection and maintenance are the carbon tips and the commutator. Timely replacement of carbon tips and cleaning of the commutator surface of foreign particles and accumulated dust, will ensure a considerably long, maintenance-free, and uninterrupted life to the unit. Normally Variac Auto-transformers upto 28 Amps. are offered in air-cooled or oil cooled construction and models of 40 Amps. and above, are offered in oil-cooled construction in very special cases, Variacs of 40 Amps. & above can be offered in air-cooled construction. This is possible due to the new paralleling techniques adopted by us.

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