Variable Voltage Transformer
100,000 - 500,000 Per Piece
1 Piece(s) (MOQ)
Single Phase Variac Transformer
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1 Piece (MOQ)
Best Deals from Auto Transformer
Auto Variable Transformers
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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.
Auto Transformers
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Having one winding, our Auto Transformers are high on performance having longer service life. We are a well-known Exporter and Supplier of Auto Transformers from Maharashtra, India. The Transformers are procured from the known personalities who design them in sync with the international quality standards. When it comes to delivery, we make all arrangements for safe and swift deliveries of not only small orders but bulk orders as well.
8 Kva Three Phase Transformer For Servo Drive
20,000 Per Piece
1 Piece (MOQ)
Auto Transformers Starter
34,000 Per Piece
1 Piece (MOQ)
2kVA Motorized Variac Transformer
9,500 Per Piece
1 Piece (MOQ)
Digital Variac(dimer)
6,500 - 15,500 Per piece
Digital variable transformer 4 to 10 amp.
Oil Immersed Auto Transformer Starter
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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.
Single Phase Variac Transformer
6,200 Per piece
1 piece (MOQ)
3 kVA Auto Three Phase Transformer
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10 Piece (MOQ)
0.0
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VARIVOLT AUTO TRANSFORMER
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"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 or above line voltage. "VARIVOLT" confirms to I.S. 5142
Dimmerstat/ Variac / Continuously Variable Voltage Auto Transformer
1,000 - 3,000,000 Per Nos
1 Piece(s) (MOQ)
Dimmerstat is registered trademark of AE for continuously variable voltage auto-transformer. It is the most effective device for step less, break less & continuous control of AC voltage & therefore for various parameters, dependent on AC voltage.The basic Dimmerstat is meant for operation from a nominal input voltage of 240V AC & can give output voltage anywhere between 0 to 240V or 0 to 270VAC by simple transformer action. Three such Dimmerstat connected electrically in star and mechanically in tandem, become suitable for operation from a nominal input voltage of 415V 3Ph AC and can give output anywhere between 0 to 415V or 0 to 470V.Resin moulded Dimmerstat is basically a variable Voltage Auto-Transformer which is partly or fully Moulded in Reinforced Polyester Resin. This has adjustable spindles which allow easy assembling of flush, table or Motorized Type in single or three phase models. These models are designed up to 120% continuous load.Features Simple, rugged construction. Coils made from high grade CRGO Silicon Steel & 99.9% pure Electrolytic copper. Output voltage variation is smooth, continuous, break less & linearly proportional to angular rotation. High efficiency. Negligible waveform & power factor distortion. Excellent short time overloads capacity. Remote operation possible by motorization. Wide range of current ratings. High quality carbon brush used for current collection.
Linear Variable Differential Transformer
5,000 - 7,000 Per Piece
100 Piece (MOQ)
0.0
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Variable Transformer
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Syemco Auto Transformer Motor Starter
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1 Piece (MOQ)
We Have Applied KORND0RFER Closed Transition Technology Advanced With Primary - Off Logic To All Our Reduced Voltage Auto-Transformer Starters. Multiple Motors Can Be Handled With Our Panels, Which Are Made As Per The IEC/NEMA Standards, lncorporating The Need For Multiple Starters As Per The Customer's Requirements. We Use RITTAL Enclosures For Our Air-Cooled Reduced Voltage Auto-Transformer Starters. Our Oil-Cooled Reduced Voltage Auto-Transformer Starters, Are Also Made As Per The IEC/NEMA Standards, Have Transformers Based On The CORE Type Technology. These Oil Immersed Reduced Voltage Auto-Transformer Starter Enclosures Are Made As Per Our Specifications,Under Strict QA Systems.KEY HIGHLIGHTS :No need to manually remove the stones stuck in the crusher SYEMCO starter keeps your motor safe Considerable reduction in energy bill Saves times and improves productivity Reduction in ‘Billed Maximum Demand'
Linear Variable Differential Transformer
12,979 - 45,689 Per Piece
1 Piece (MOQ)
Oil Cooled Motorized Dimmer
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1 Piece (MOQ)
variac transformer
1,000 - 3,000 Per Piece
1 Piece (MOQ)
Auto Transformer
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“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 motorised operating type.“VARIAC” Auto Transformer :- Is a 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: 1. 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. 2. EXCELLENT REGULATION : The drop in voltage from "no load to full load" is minimal in Variac Auto-transformers. 3. HIGH EFFICIENCY : Careful copper, core selection and design assures the user of low watt loss, as compared to other types of controllers. 4. NO WAVE FORM DISTORTION : VARIAC provides an output voltage wave-form, which is a faithful and distortionless replica of the input voltage wave-form. 5. 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. 6. 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. 7. 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. 8. 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. 9. 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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