Purevolt manufacture continuously Variable Auto Transformer popularly called as VARIAC or Dimmerstat, having a movable carbon tip fixed to a brush-arm sliding on a silver plated commutation. The Rotation of the variable transformer brush-arm is done by either manual operation or by motorized operation which delivers an output voltage from zero to or above line voltage conforming to IS : 5142 : 1969.
Purevolt Export Variacs has been carefully designed. Our Variacs are ruggedly designed and No special care has to be taken to maintain variac Auto transformers in normal environment. These variable Transformers Provide excellent regulations. The only components needing inspection and maintenance are the carbon tips and the commutator. These Variacs are manufacture in such a way that they provide zero wave form distortion & the Variacs can easily operate on low Torque due to smooth track for easy movement of tracks.
These Variable Auto transformer are commonly used as a device to control the level of output voltage in order to control the voltage current, light lumens or intensity, heat level and motor speeds as per different application and needs. These Variacs are used commonly in big auditoriums , conferences , Hotels , College labs, Welding Equipments, Servo voltage stabilizers, battery charges and testing purpose.
As we are a reputed supplier of variac and we fabricate these variable auto transformers with quality components , materials and superior technology. These Variable Auto Transformer provides us option to adjust and regulate the output voltage on Load and thereby help us in accurately testing the unit or carrying our required production job.
As Single Variable transformer coil can normally be designed to take load upto 250 Amps, if the current requirement is more than we need to use these variac in ganged assembly. Normally a renowned supplier like Purevolt also supplies these variacs to manufacturer of servo voltage stabilizers as its a crucial component in designing of servo stabilizers.
Variable Auto Transformers are rated 240 volts Input and 0-270Volts output. Similarly, three 240-volt units are ganged in a star connection to result in a 470-volt line-to-line three-phase assembly. For 480-volt open delta applications, two 240-volt units are used in series in each of the two legs of the open delta assembly. In any of the above voltage applications, higher current requirements are met by paralleling two or more units in the ganged assembly.
We can also provide you DC & AC Variable Auto Transformers Variacs / dimmers with option of C and AC output. We also provide additional features like MCCB, Motorized Operation, Remote Extension etc.
Purevolt is one of the largest manufacturer and exporter of these Variable Auto Transformer or Variacs from india.
Rating Available: 2 Amp to 1800 Amp
Air / Oil Cooled and Single / Three Phase
(Special ranges also available on request
If you are looking for servo stabilizer, we are most reputed brand manufacturer and exporter of servo voltage stabilizer
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Products Offered :
Industrial Servo Voltage Stabilizers SVS, Automatic Voltage Regulators / Stabilizers, IGBT based Online UPS (Single/Three Phase), Sine Wave Online Ups (Single / Three Phase), Automatic and Manual Voltage Stabilizers/Regulators, Constant Voltage Transformers – CVT, Ferro Resonant Transformers, Isolation Transformers, Auto Transformers, Step Up Down Transformers, Line Interactive – Offline UPS, Ups with External Battery, Power Inverters, DC – AC Converters, Telecom Transformers, Sine Wave Inverters, Solar Products, Dimmerstat / Variable Test Panel, Variable Auto Transformers (Variacs)