Auto Transformer Dealers

(572 products available)
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    Variable Voltage Transformer +2

    Variable Voltage Transformer

    100,000 - 500,000 / Piece

    • MOQ1 Piece(s)
    • Brand NamePEC
    • MaterialCopper
    • Cooling TypeOil Cooled
    • Operating TypeSemi Automatic
    • UsageIndustrial
    • CertificationISO 9001:2008
    • Packaging TypeWooden Box
    • Input Voltage440V
    • Output Voltage0-1100 V
    • PhaseThree Phase
    • Total Carbohydrate3 Year
    • Country of OriginIndia
    • Corrosion ResistanceYes
    • range 0- 33,000 volts 3 - phase, up to 5000 kva PRINCIPLE OF OPERATION: The Variable Voltage Supply/ Regulator consist of following basic components depending on the rating of the equipment. 1) Step up Transformer 2) Buck boost transformer 3) Rolling contact type voltage regulator 4) Automatic control gear Variable Voltage Supply/ Regulator with constant Input and variable output. It consists of a Step up Transformer, 6 nos. Regulators and Buck Boost transformer. This circuit is normally used to Vary on load voltage when the regulator used in conjunction with buck/boost transformer and step up transformer. The equipment are available with following control devices: a) Manual version b) Motorised version c) Remote control In manual version a Hand wheel T Handle is provided and desired output voltage can be obtained by rotating the Wheel Handle manually. In case of motorized version and servo motor will be provided which can be operated by two sets of push buttons or toggle switch for raising and lowering the output voltage. In case of remote control arrangement one extra set of push buttons will be provided in your main panel from where the operator would be able to maintain the desired voltage with the help of those push buttons. DESCRIPTION ROLLING CONTACT REGULATOR This is essential a Continuously tapped auto wound transformer having helical coils mounted on a conventional laminated transformer core. However, the regulating winding is designed as a single layer type giving longer and slimmer version of the transformer coil but in principal it is the same. The regulating winding is varnished and baked to improve rigidity and ensure that the construction is non hydroscopic. After proper treatment longitudinal/track is ground on the coil to form a bared copper surface with the winding wire covering providing inter turn insulation. Graphite rollers , assembled on carrier boards, traverse throughout the length of the coil track. These rollers are connected electrically with the output terminals and as they are driven over the track a variable voltage is obtained. The Regulator may be of one sided or can be made double sided. In case of double sided Regulator both side of regulating winding is bared and allows rollers to be driven in opposite direction on either side of the coil. In such cases carrier boards are provided on both sided of the coils and the output terminals will be taken out though balancing transformer. The contact carrier is driven by a hand wheel / T–Handle or motor which is coupled to the chain drive. Limit switches operated by the carrier board are fitted to prevent over run. In case of your specific requirement additional limit switches will be fitted for minimum position inter-locking along with the auxiliary circuit. The power supply of the motor is derived from the Regulator unless otherwise specified. The entire regulator assembly is housed inside a rigid M.S.Tank filled with oil. The Hand wheel / T – Handle, Motor push buttons etc. is fixed up inside a separate sheet steel box which is attached to the main tank. Wherever automatic control is required the solid stat voltage sensing relay is also provided inside a sheet steel box fitted along with the regulator tank.
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    Linear Variable Differential Transformer +1

    Linear Variable Differential Transformer

    5,000 - 7,000 / Piece

    • MOQ100 Piece
    • Frequency2 To 5 KHz
    • ApplicationIndustrial Use
    • Voltage2 to 12V AC rms
    • Stroke+-10 mm to +- 150 mm
    • Input Voltage2 to 12V AC rms
    • Sensitivity10 to 50 mV/V/mm
    • Linearity+- 0.3% to +- 0.8% Full scale operation
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    Motorized Air Cooled Variac

    Motorized Air Cooled Variac

    8,500 / Piece

    • MOQ1 Piece
    • Country of OriginIndia
    • Phase3
    • MaterialMild Steel
    • Current25 mA
    • Cooling TypeAir Cooled
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    Auto Transformer Starter Panel

    Auto Transformer Starter Panel

    10,000 / Piece

    • MOQ1 Piece
    • Country of OriginIndia
    • Brand NameNavrang Engineering
    • ApplicationIndustrial
    • MaterialMild Steel
    • Rated Voltage320 - 415 V
    • PhaseThree Phase
    • Frequency50 HZ
    • Power SourceElectric
    • IP RatingIP55
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    Variable Power Test Auto Transformer

    Variable Power Test Auto Transformer

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    • ApplicationIndustrial,Test Labs, Industrial Use,Stepping Up Or Stepping Down Voltage
    • PhaseThree Phase
    • Country of Origin415 V
    • MaterialCRGO
    • Output Voltage230-440 V
    • Frequency50-60 Hz
    • PowerAC
    • Packaging TypeCarton
    • Cooling TypeAir, Oil
    • Current2-300A
    • Mounting TypeFloor
    • Winding MaterialCopper
    • FunctionAdjusts Output Voltage
    • DesignSingle-winding Construction
    • CoolingOil-filled With Radiator Pipes
    • MobilityMounted On Heavy-duty Wheels
    • ControlManual Voltage Tap-changer
    • ConstructionRugged, Durable Tank
    • ConnectionHV Output Bushing
    • BrandTI
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    8 Kva Three Phase Transformer for Servo Drive

    8 Kva Three Phase Transformer for Servo Drive

    20,000 / Piece

    • MOQ1 Piece
    • Country of OriginIndia
    • Phase3 Phase
    • Frequency50hz
    • Accuracy Class0.5
    • MaterialCopper
    • Power8KVA
    • Efficiency100%
    • Secondary Voltage220
    • Primary Voltage415
    • Product Type8 Kva Three Phase Transformer For Servo Drive
    • Mounting TypeNut Bolt
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    Single Phase Variac Transformer

    Single Phase Variac Transformer

    7,200 / piece

    • MOQ1 piece
    • Brand NameCROWN
    • ConditionNew
    • Automatic GradeMANUAL
    • ApplicationControl Panels, Industrial Use, Color Coated, Polished
    • CertificationISO 9001:2008 Certified
    • Number Of FlowerGrey
    • Availability5kg
    • Input Voltage230
    • Frequency50hz
    • PhaseSingle Phase
    • Cooling SystemAir Cooled
    • Country of OriginIndia
    • Warrenty1yr
    • 10amp 1-phase variable auto transformer (variac) - input - 240v ac, 50hz output - 0 - 270v ac type - air-cooled range - 10amp
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    Auto Variable Transformers

    Auto Variable Transformers

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    • PhaseSingle Phase
    • Frequency50 - 60 Hz
    • Cooling TypeDry Type, Air Cooled
    • Current10 A
    • UsageIndustry
    • Operating Voltage0 - 230 Volts
    • STERCO product line includes variable transformers, the most versatile and reliable voltage controls available, Variable transformers have many industrial and laboratory applications as basic components to control voltage, current, power, heat, speed, light, and electromechanical force. A basic Variable Transformer consists of a single layer, magnet wire winding on a toroidal core of laminated silicon steel. A carbon brush, connected to an output lead, is rotated over a precision ground, plated commutator track 10 tap off voltage at any turn from zero to the maximum output voltage of the winding.   EFFICIENCY & DISTORTION LESS VOLTAGE CONTROLIn contrast to inefficient, wattage-burning resistive-type controllers such as rheostats, Stereo Variable Transformers have an extremely low power loss and efficiencies as high as 98%. Stereo Variable Transformers deliver any desired voltage (within the transformer rating) with negligible variation in output voltage from no-load to full-load current. It produce an accurate transfer of input wave to output circuit, providing distortion less voltage control (a requisite of many sophisticated electronic applications).PLATED COMMUTATOR SURFACEThe commutator surface of each coil is specially plated with precious metal, giving Stereo commutators longer life, increased resistance to corrosion and the capacity to withstand greater overloads (while maintaining a constant contact voltage drop).LONGER LIFE WITH NEGLIGIBLE MAINTENANCEPrecise design assembly of the brush provides excellent mechanical performance, long life, and low-driving torque. Brush replacement is seldom needed and it can be easily replaced, if required. Due to high safety margins of voltage, current-carrying capacity and dielectric strength, longer life of the unit can be expected.RUGGED MECHANICAL CONSTRUCTIONSterco Variable Transformers are precision built to exacting mechanical tolerances using the finest materials available. Quality assurance inspections are performed to insure that the high designed in quality is maintained throughout the manufacturing cycle. A Stereo Variable Transformer provides accurate, reliable and lasting voltage control for a broad variety of applications.
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    Linear Variable Differential Transformer

    Linear Variable Differential Transformer

    12,979 - 45,689 / Piece

    • MOQ1 Piece
    • Brand NameSensors world
    • MaterialMild Steel
    • ConditionNew
    • Automatic GradeFully Automatic
    • Production Power10-25kw
    • ApplicationIndustrial Use
    • Number Of FlowerLinear Variable Differential Transformer
    • Frequency50hz
    • Tensile Strength0-25Mpa
    • CertficationISO 9001:2008 Certified
    • Country of OriginIndia
    • Warrenty1yr
    • FeaturesCorrosion Resistant
    • Surface FinishedPolished
    • Analog output:4~20mA,0~20mA,0~10V,0~5V *Robust and reliable, oil and dirt resistant *Non-contact measurement, never wear *Absolute output, no need to return to zero *Easy to diagnose, LED lights show real-time status Modular design, easy to replace *Low-power design, effectively reducing system temperature drift Measurementparameters Technical parameter  Structure and Materials Installation working conditions Range         ElectricalCharacteristics 50~7000mm Output        4~20mA (Min/Max load:0/500 Ω)                        20~4mA (Min/Max load:0/500 Ω)                        0~5VDC   (Min load>5K Ω)                        0~10VDC  (Min load>5K Ω)                          Resolution          Update time   0.5ms(Min< Nonlinearity 
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    Three Phase Variac Transformer

    Three Phase Variac Transformer

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    • MOQ1 Piece
    • Brand NameSudharsan Insulations
    • Country of OriginIndia
    • PhaseThree Phase
    • MakeA.E / Voltamp.
    • Input420V, TPN, 50 Hz
    • Output0 to 470 V
    • Rating3 phase 0.75A to 28A variac
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    Varivolt Transformer +1

    Varivolt Transformer

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    • MOQ1 Piece
    • PhaseSingle Phase, Double Phase, Three Phase
    • Country of OriginIndia
    • Brand NameMarsz
    • FinishingPowder Coated
    • Driven TypeElectric
    • Operating TypeAutomatic
    • SpecialityRobust Construction, High Efficiency
    • UsageIndustrial
    • “VARIVOLT“ is the most effective device meant for operation from a nominal input voltage of 240V 1Ph & can give output voltage anywhere between 0 to 240V or 0 to 270V 1Ph by simple transformer action. Three such “VARIVOLT“ connected electrically in star and mechanically in tandem, become suitable for operation from a nominal input voltage of 415V 3Ph and can give output anywhere between 0 to 415V or 0 to 470V 3Ph.   “VARIVOLT” AUTO TRANSFORMER is a continuously variable voltage auto transformer, having a movable carbon tip, fixed to brush arm sliding on a silver plated commutator. Rotation of the brush arm by either manual or motor drive, delivers an output voltage from zero to or above line voltage. “VARIVOLT” conforms to I.S. 5142.   Salient Features: Rugged Construction : “VARIVOLT” 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 “VARIVOLT” a maintenance free electrical equipment. Excellent Regulation : The drop in voltage from “no load to full load” is minimal in “VARIVOLT” Auto-transformers. (See fig…II for regulation characteristics) High Efficiency : Careful copper, core selection and design assures the user of low watt loss, as compared to other controllers.  No Wave form Distortion : “VARIVOLT” provides an output voltage wave-form, which is a 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. Over-load Capacity : Because of its careful designing, “VARIVOLT” can withstand many over-loads, Fig…I gives an idea of the maximum overloading allowed with its relevant time limits. When repeated overloading takes place, care has to be exercised to provide sufficient off time to reduce the temperature build up. Low Operating Torque : A glass smooth commutator, special sintered bushings for the shaft and perfect assembling of coils results in low operating torque for all “VARIVOLT” 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 to a fraction of a volt from zero onwards. Low Magnetizing Current : By using an adequate section of high quality grain oriented silicon steel, the iron losses in “VARIVOLT”, are controlled to the minimum. The no load current in all “VARIVOLT” transformers, is invariably less than 3% of the rated current. Negligible Maintenance and Trouble Free Long Life : “VARIVOLT” has been carefully designed. No special care has to be taken to maintain “VARIVOLT” 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 off foreign particles and accumulated dust, from the commutators surface, will ensure a considerably long, maintenance free, and uninterrupted life to the unit. Normally “VARIVOLT” auto transformers up to 28 Amps. are offered in air cooled or oil cooled construction. Models of 40 Amps. & above are offered in oil cooled construction. In very special cases “VARIVOLT”, above 40 Amps, can be offered in air cooled construction. This is possible due to the special paralleling techniques adopted by us.   Auto Transformers – Our Speciality : “VARIVOLT”  is now available in high current ranges from 225 Amps. up to 2000 Amps. in single, two and three phase models. Special paralleling techniques designed by us, have made it possible to surpass the previous current limit of 200 Amps. for toroidal Auto Transformers.   The following are the salient features of High Current “VARIVOLT” Auto Transformers :- Special forced current paralleling techniques, result in current sharing of each coil ±2%. Flanged type pressed steel radiators, are supplied separately packed, making the units easy for transportation. Gear Driven High Torque A.C. Synchronous Motor drive. Terminals in the form of bus-bars. All other features of oil cooled auto transformers.
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    Variac Transformer +2

    Variac Transformer

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    • Capacity (Ampere)60, 8
    • Frame typeT frame
    • Current2 Amp to 50 Amps
    • Input Power240 Volt and 415 Volt
    • Output Voltage0 - 270 for single phase and 0 - 415 for Three Phase
    • Warranty1 year
    • We have carved a niche as one of the dominant Variac Variable Transformers Exporters from India. VARIAC Auto Transformers 1 Ph. (Closed / Open type) are designed to give output voltage of 260-270 Volts for the input voltage of 240 Volts. 3 Phase VARIAC Auto Transformers are designed to give output voltage of 470 Volts for input 415 Volts. These are available in manual and motorized operating type. Variac Auto Transformers are continuously variable voltage auto transformer, having a movable carbon tip, fixed to a brush-arm sliding on a silver plated commutator. Rotation of the brush-arm by either manual or motor drive, delivers-an output voltage from zero to or above line voltage. Variac conforms to I. S. 5142 of 1969. SALIENT FEATURES: RUGGED CONSTRUCTION: Variac transformer is 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 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 assure 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 distortion less 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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    Auto Transformers

    Auto Transformers

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    • Availability100-1000kg
    • Frequency50hz, 60hz
    • ApplicationPower Grade
    • ConditionNew
    • Automatic GradeFully Automatic
    • Tensile Strength0-25Mpa
    • CertficationISO 9001:2008 Certified
    • Cooling SystemOil Cooled
    • Phase typeThree Phase
    • We cater a wide gamut of high efficiency Auto Transformers that is manufactured from the premium quality raw materials. Our Variable Auto Transformers are highly acclaimed in the national and international market. Voltage Auto Transformer is a low maintenance transformer that provides long lasting excellent performance. Superior performance, high durability and rugged construction are some of the salient features of our motor starting auto transformers. We have carved a niche as one of the predominant Voltage Auto Transformer Manufacturers, based in India. Auto tuning Number of output types Selection of type of inputs Relay outputs for alarms Microprocessor based circuitry Dual display Alarm outputs Thyristorised heater controller Keyboard programmability Universal inputs
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    Oil Immersed Auto Transformer Starter

    Oil Immersed Auto Transformer Starter

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    • Number Of FlowerAuto Transformer Starters
    • MaterialMS Sheet
    • ApplicationSuitable For Places Demanding A Robust Apparatus
    • FeatureOverload Protection, Designed For Ordinary Duty,Standard Trappings Provided At 50%
    • We have gained the trust and appreciation of our valued clients as a reliable manufacturers and suppliers in India of Oil Immersed Auto Transformer Starter which are manufactured by our experts using premium quality raw materials and components at our facility in Delhi. Our range of hand operated oil immersed auto transformer starters is compact, totally enclosed with gasketted joints. The entire range is made of top-quality raw material and is available at very economical prices. The team of professionals ensure that the starters are well finished and perform smoothly. Our range includes: Fully automatic auto transformer starters upto 600 HP 550V (275 HP Type Tested from ERDA Vadodara. Manual auto transformer starters upto 200 HP 550V Any other voltage can be supplied on request.   Features Oil Immersed Auto Transformer Starter Case and lid are of MS sheet thus suitable for use in places demanding a robust apparatus. In case thermal overload rely is required it can be supplied on request. Adjustable magnetic type overload protection with oil dash-pot type time lag device provides insurance against motor burnout. Are designed for ordinary duty Standard trappings' are provided at 50%, 60% and 80% of the line voltage Correct sequence device rendering it impossible to put the handle into the "Running" position without going through the "Start" position. Tripping by push button fitted on the unit. Remote stopping is possible by push button station or any other tripping device—for which the no-volt terminals are brought out. Provision for fitting an isolator — interlocked with the unit—so that opening of the unit is not possible till the isolator is made "Off". Padlocking arrangement for isolator. Cable sealing boxes can be supplied for under- Ground paper insulated cables hence suitable for PVC cable entry. Can be mounted on unit type bus bar chambers to form a switchboard. SM AT 50 units can be wall-mounting as well as floor-mounting types. AX-45 is floor-mounting type only. The unit has the provision for fitting one instrument directly on itself. For more than one unit, an instrument panel is provided. Floor stand can be supplied as an optional item.
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    Electrical Auto Transformer

    Electrical Auto Transformer

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    • MaterialCast Iron
    • Driven TypeElectric
    • ShapeRectangle
    • Power10-50 KW
    • Cooling TypeOil Cooled
    • Operating TypeAutomatic
    • SpecialityRobust Construction, Easy To Use, High Efficiency
    • UsageIndustrial, Commercial
    • Country of Origin380 V
    • Number Of FlowerAC Transformer
    • PhaseThree Phase
    • Country of OriginIndia
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    Variable Transformer

    Variable Transformer

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    • Availability100-1000kg, 1000-2000kg
    • Frequency50hz
    • Tensile Strength0-25Mpa, 100-125Mpa, 125-150Mpa
    • Warrenty5yrs
    • Production Power10-25kw, 25-50kw
    • Country of OriginIndia
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    Digital Variac(Dimer)

    Digital Variac(Dimer)

    7,500 - 18,500 / piece

    • MOQ5 Piece
    • MaterialM.S.
    • Brand NameBharat instruments
    • Automatic GradeManual
    • PowerAsk
    • Digital variable transformer 4 to 10 amp.
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  • Variable Voltage Auto Transformer

    Variable Voltage Auto Transformer

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    • Output VoltageVariable
    • Operating Temprature0 Deg. To 50 Deg.C
    • Three such ‘RE’ VARITX connected electrically in star and mechanically interlocked to move together are used for operation on 415 Volts, 3 phase AC supply to give output from voltage from 0 to 470 Volt at 5060Hz. ‘RE’ Manufactured VARITX is having good Regulation with Negligible waveform distortion. Varitx are robust, energy efficient, noiseless and easy to operate with excellent short time over load capabilities. ‘RE’ manufacturers specialized Oil cooled or air cooled motorizedmanually operated VARITX upto 800 Amps with supply voltage of 240 Volts to give output voltages from 0 to 350 Volts, 3 Phase VARITX up to 800Amps with input supply voltage of 415 Volt 3 Phase to give output Voltages from 0 to 600V. Compact in Size. Rugged Construction. High Efficiency Neozero waveform distortion.
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  • Variable Autotransformer 3

    Variable Autotransformer 3

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    ‘M/s ARDISONS ASSOCIATES’, is a leading Variable Autotransformer manufacturer and supplier based in Punjab. We manufacture and supply world class variable auto transformer which has a movable carbon sliding on a silver plated commutator by either manual or by motor, give an output voltage from zero. The variable auto transformer provided by us confirms to IS/5142/69, IS/5142/69 standards. Features :- Rugged constructionHigh efficiencyExcellent regulationLow magnetizing currentNo wave form distortionLoad capacity Smooth and linear out putSilver plated commutatorLow operating torqueCarbon depositionsDouble wound auto
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  • Auto Wound Transformer

    Auto Wound Transformer

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    This Auto Wound Transformer consists of Double Wound that is developed for voltage stabilizer application. The varistat is also available with inbuilt 12v dc motor, which is cost- effective and time-saving for servo manufacturer. Such varistat will eliminate the need of buck-boost transformer. This Auto Wound Transformer consists of AC or DC External Motor, its Gears, its couplings and other mechanical requirements in stabilizers. Why Our Auto Wound Transformer? Smooth transferring of electrical energyUse of high-grade coils and coreBased on the cutting-edge transformer manufacturing techniques
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  • Three Phase Variable Transformers

    Three Phase Variable Transformers

    200,000 / Piece

    • Availability100-1000kg
    • Automatic GradeAutomatic
    • CertficationISO 9001:2008 Certified
    • UsageAll Industries
    • Phase3 Phase
    • Current TypeAC
    • Warranty1 year
    • Features: Minimal tendency of forming rust High durability High mechanical strength Optimum performance Immaculate Efficiency   Specifications: Used for various tests where variable output ranges from 0 to any voltage Widely used to perform electrical tests on various machines such as transformer, motor and generator Consists of buck or boost double wound transformer and /- type linear rolling contact
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  • VARIAC TRANSFORMER / DIMMER

    VARIAC TRANSFORMER / DIMMER

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    The term "Variac" (from "vary AC") has become generic, and commonly refers to any continuously variable autotransformer. Variac is a trade name, and has changed ownership several times since early 1930s when the device was first produced. Other trade names include Powerstat and Dimmerstat, and I'm sure there are many others. Some manufacturers simply call their versions "variable voltage transformers". The trade name Variac has been owned or licensed by Warburton Franki (in Australia), General Radio (Genrad), Claude Lyons, Statco and probably a few others as well. I shall use the term Variac (small "v") in its generic form - this does not imply that variable transformers with the Variac branding are more desirable than others, only that I'm used to the term having used it all my working life. The Variac is a special type of transformer, generally having a single winding and a single layer. The top section of the winding is flattened and machined to remove the insulation and provide a smooth surface for the sliding brush that's used to select the voltage needed. Some variations use a roller instead of a brush, but there seems to be no specific advantage. I still have my first Variac (branded as such) that I bought sometime around 1960, and it's been dismantled for service once in all that time - see Figure 1a. Figure 1b is a Matsunaga 1kVA Variac - made in Japan especially for use in Australia. It is described as a "Deluxe Slide Regulator" (sic).
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  • Variable Transformer

    Variable Transformer

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    • ApplicationControl Panels, Industrial Use, Power Grade
    • Availability100-1000kg
    • Frequency50hz
    • Automatic GradeAutomatic
    • Tensile Strength0-25Mpa
    • Phase TypeThree Phase
    • We have gained immense recognition in the industry as we offer top-quality products from Gujarat, India. While we offer reliable products, our range of Variable Transformer guarantees a great performance and optimum functionality. As per the need of the clients, we package these using premium packaging materials and deliver it timely to the clients. Also, we accept bulk orders by the clients.
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  • Three Phase Electric Transformer

    Three Phase Electric Transformer

    400,000 / Piece

    • MOQ1 Piece
    • ApplicationIndustrial Use
    • ConditionNew
    • Frequency60hz
    • Automatic GradeAutomatic
    • CertficationISO 9001:2008 Certified
    • Country of OriginIndia
    • Phase TypeThree Phase
    • Three-Phase Electric Transformer With a vision to be a pioneer in our domain and establish ourselves as a brand, Chhoker & Sons is energetically indulged in offering outstanding quality three-phase electric transformers. Our products are designed to transfer energy from one circuit to another by electromagnetic introduction. The offered transformer is utilised so often for power distribution systems. It turns out that we would need three-phase transformers to be capable of stepping voltages up or down. The transformers are carefully used in commercial and industrial places where a three-phase power supply is necessary. Additionally, on different quality parameters, our quality controllers check the three-phase Transformer in order to give defect-free supplies. Three Phase Electric Transformer Trader is serving the needs of its customers with the best quality products. If you have more questions and queries in mind, you can contact our team for more information. Chhoker & Sons is ready to assist you anytime!
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  • Auto Transformer

    Auto Transformer

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    • Power1000 watt
    • Country of Origin220 V
    • UsageIndustrial
    • PhaseSingle Phase, Three Phase
    • ApplicationIndustrial
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  • Motorized Variac Transformer

    Motorized Variac Transformer

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    We are offering Motorized Variac Transformer. Catering to the needs of the clients, we offer advanced Motorized Variac Transformer. The Motorized Variac Transformer is manufactured as per the set industrial standards. We check the Motorized Variac Transformer on different parameters like quality, durability, functionality, etc. Widely appreciated by the clients, our Motorized Variac Transformer is high on demand in the market. Why Our Motorized Variac Transformer? Highly efficientLong service life Less power consumptionLow maintenance
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  • Three Phase Auto Transformer

    Three Phase Auto Transformer

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    Description Three phaseCapacity 6A , 1200ACooling Forced Air / oil immersed Mounting Balance / unbalance 
  • Variac Transformer

    Variac Transformer

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    Engaged as a manufacturer & supplier we are providing our customers with Variable Auto Transformer. Manufactured using single layer winding on a core that is made up of high-grade cold rolled grain oriented steel, these products are developed with perfection. Rugged in construction, these products are provided to our customers in different specifications to suit their demands. Some of the salients features of "COSMO" Autotransformers are. » Continuously Varable output voltage » Silver plated track of carbon brush » High grade carbon brush » Easy replacement of carbon brush » Extremely low magnetising current (about 25 of rated load) » Mechanically rugged design » Almost no maintenance required » Capacities upto 40 amps in air cooled version » conforming to IS:5142-1969
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  • Auto Transformers

    Auto Transformers

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    • Power400VA
    • Insulation Strength1500V/2500V/3750VRMS Hipot
    • Input100-400V(50/60Hz)
  • Single Phase Auto Transformer

    Single Phase Auto Transformer

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    • Brand NameUNICON
    • Model NumberUI-300
    • We are offering single phase auto transformer • closed type input voltage 220, output voltage 0-270v. • closed type with bakelite knob on top. • output through 4mm terminals • current rating: 2-15a available
    ...more
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