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- Auto Transformer
Auto Transformer
(582 products)
Auto Transformer - Stainless Steel / Iron, Three Phase | High Efficiency, Dry Voltage Booster for Commercial Use
MOQ5 Unit/Units
Voltage Booster TypeDry
MaterialStainless Steel / Iron
EfficiencyHigh
PhaseThree Phase
UsageCommercial
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Auto Transformer - Material: Ms
Price : 12000 INR
Variable Auto Transformer
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Three Phase Auto Transformer
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Variable Auto Transformers
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Variable Auto Transformers - Coil Material: Iron Core
Price : 50000 INR
Transformer With Built-In AVR
Price: 500000 INR/Piece
MOQ5 Piece/Pieces
Low Voltage220V, 240V, 380V, 415V
Operating Temperature-25C to +45C
Coil MaterialOther , High Purity Copper
StandardIEC 60076 / IS 1180 / IS 2026
Load LossLow (Designed as per IEC Standard)
Rated Voltage220V / 415V (Customizable)
Servokon Systems Limited
Ghaziabad
Super Bonanza
Trusted Seller17 Years
Auto Transformer - Stainless Steel / Iron, Three Phase | High Efficiency, Dry Voltage Booster for Commercial Use
MOQ5 Unit/Units
Voltage Booster TypeDry
MaterialStainless Steel / Iron
EfficiencyHigh
PhaseThree Phase
UsageCommercial
Able Electronic Services
Coimbatore
Trusted Seller
Super Seller7 Years
Verified SellerView More
Variable Auto Transformers - Coil Material: Iron Core
Price : 50000 INR
Three Phase Auto Transformer
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Variable Auto Transformers
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Variable Auto Transformer
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Auto Transformer - Material: Ms
Price : 12000 INR
Single Phase Auto Transformer - Frequency (Mhz): 50 Hertz (Hz)
Price: 10000 INR/Unit
MOQ10 Unit/Units
Operating Temperature-10 to +60 Celsius (oC)
MaterialMild Steel
Frequency (MHz)50 Hertz (HZ)
PhaseSingle Phase
UsageIndustrial
Warranty1 Year
Gujarat Plug-in Devices Pvt. Ltd.
Vadodara
Trusted SellerSuper Seller13 Years
Auto / Isolation Transformer For Cnc Machines Coil Material: Copper Core
Price Trend: 40000 - 53000 INR/Unit
MOQ1 Inch/Inches
Coil MaterialCopper Core
Operating Temperature0 -50 Celsius (oC)
Voltage Booster TypeOther
Cooling TypeAir Cooled
Product TypeIsolation Transformer
MaterialCopper
Adroit Power Systems India Pvt. Ltd.
Coimbatore
Trusted SellerSuper Seller9 Years
230V Automatic Door Transformer - Material: Mild Steel
DimensionsVariable
EfficiencyHigh
FeaturesHigh Performance, Durable Design, Low Price, Variable Voltage, Efficient Operation, Compact Size, Tightly Wound, Reliable Performance
Frequency50-60Hz
MaterialCopper, Steel
PowerVariable
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Auto Motion Panel Ring Current Transformer
Price Trend : 3200.00 - 3600.00 INR
Explosion Prevention and Fire Extinguishing System for Transformers and Reactors
Fire ClassClass C (Electrical fire)
VoltageSuitable for high-voltage environments
Working TemperatureOperational in industrial conditions
Coverage AreaLocalized around transformers and reactors
Control TypeAutomatic
Fire Extinguisher TypeGas-based extinguishing system
Ctr Manufacturing Industries Private Limited
Pune
Trusted Seller
Premium Seller13 Years
Plastic Auto-Transformer Continually Veriable
Price: 6500 INR/Piece
MOQ10 Piece/Pieces
UsageFor Laboratory
Product TypeAUTO-TRANSFORMER
Weight4-6 Kilograms (kg)
MaterialPlastic
Auto Power Transformer
Price: 200000 INR/Piece
MOQ1 Piece/Pieces
Load LossLow, As per IS 2026
Coil MaterialOther , Copper / Aluminium
Cooling TypeONAN (Oil Natural Air Natural) / Air Cooled
Dimension (L*W*H)Customized as per requirement
StandardIS 2026 / IEC 60076
Low Voltage415 V / 230 V
Variable Auto Transformer Coil Material: Copper Core
Price: 3500 INR/, Piece
MOQ1 , Piece/Pieces
Cooling TypeAir Cooled
Coil MaterialCopper Core
High Voltage230 Volt (V)
Product TypeOther, Variable Auto Transformer
MaterialStainless Steel
UsageFor Motor Use
1 Phase Variac Slidac Auto Transformer Yh2Xxx Coil Material: Copper Core
Price: 2200 INR/Piece
MOQ50 Piece/Pieces
Coil MaterialCopper Core
Voltage Booster TypeDry
Cooling TypeDry Type,Air Cooled,Oil Cooled
Product TypeToroidal Power Transformer
MaterialAluminium
Output0-270 -0-300 Volts
I And I International Co. Ltd.
Taipei
Trusted SellerPremium Seller10 Years
Step Down Transformer - Efficiency: 1Kva To 2000Kva
Price Trend: 5000.00 - 50000.00 INR/Piece
MOQ1 Piece/Pieces
High Voltage400 Volt (V)
Rated Voltage1KVA TO 2000KVA Volt (V)
Cooling TypeAir Cooled and Oil Cooled
Low Voltage230 Volt (V)
Product TypeElectrical Transformer
MaterialMetal
Purevolt Products Pvt. Ltd.
New Delhi
Trusted SellerPremium Seller13 Years
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Variable Auto Autotransformer Frequency (Mhz): 50-60 Hertz (Hz)
Price : 4000 INR
1 Phase Variable Auto Transformer - Metal & Plastic, 240V A.C., 50/60Hz | Air & Oil Cooled, Voltage Regulation & Precision Control
Price : 4000 INR
Manual Variable Auto Transformer Frequency (Mhz): 50 Hertz (Hz)
Price : 4000 INR
3 Phase Variable Auto Transformer Frequency (Mhz): 50 Hertz (Hz)
Price : 10000 INR
Auto Transformer - High-Efficiency Copper Windings | Energy-Saving Design, Compact Size, Reliable Voltage Regulation
MOQ1 Piece/Pieces
UsageVoltage Regulation, Electrical Isolation
Operate MethodManual / Automatic
PowerUp to 500 kVA or as per requirement
VoltageUp to 11 kV
ColorGrey
Product TypeAuto Transformer
FAQs Related to Auto Transformer
What is the working principle of an auto transformer?
An auto
transformer is a single-winding transformer that operates on the principle of
Faraday's Law of Electromagnetic Induction.
What are the advantages of an auto transformer?
The advantages of auto transformers are:
- Autotransformer losses are lower.
- The auto transformer's efficiency has increased.
- The voltage control of an auto transformer is excellent.
- The reactance of a single winding is lesser.
What are the applications of auto transformers?
- Induction motors are started using auto transformers.
- Voltage control is accomplished by the use of auto transformers.
- Auto transformers are utilised in laboratories.
- Auto transformers are utilised in a variety of industrial applications such as paper mills, industries, and so on.
Is an auto transformer an electrically isolated device?
No, an auto
transformer is a device that is both electrically and magnetically coupled.
What are the features of an auto transformer?
The auto
transformer's most remarkable feature is its ability to save copper when
compared to a standard two winding transformer. The weight of copper is
determined by its length and cross-sectional area. The length of copper in a
transformer, on the other hand, correlates to the number of turns, and the
cross-sectional area corresponds to the current rating.
What are an auto transformer and its types?
An autotransformer is a single-winding electrical transformer. The prefix "auto" refers to a single coil functioning alone, not to any form of automated device. There are three types of auto transformer:
- Step-up auto transformer
- Step-down auto transformer
- Variable auto transformer
Black Flush Open Type Auto Transformer
MOQ1 Piece/Pieces
Product TypeTransformers
MaterialPVC
ColorBlack
Weight420 And 360 Kilograms (kg)
10 Kva Auto Transformer Frequency (Mhz): 50 Hertz (Hz)
Price: 33000 INR/Piece
MOQ1 Piece/Pieces
Voltage Booster TypeDry
Product TypeOther, 10 Kva Auto Transformer
Frequency (MHz)50 Hertz (HZ)
PhaseThree Phase
UsageIndustrial
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Variable Auto Transformers - Input Voltage 240V, Output Voltage 0-270V | 50Hz Single Phase, Ideal for Industrial Usage
Price : 4500 INR
Variable Auto Transformers - 240V Voltage, 50Hz Frequency | Ideal for Electronic Instruments
Price : 2200 INR
Mild Steel Oil Cooled Variable Auto Transformer
Price : 185000 INR
Auto Transformer Phase: Three Phase
Price: 50000 INR/Piece
MOQ1 Piece/Pieces
Product TypeElectrical Transformer
PhaseThree Phase
UsageIndustrial
Dual Layer Variautos Transformer - Ferrite Core, 100x80x60 mm, Brown | Voltage Control, Compact Design, Silent Operation, Durable, High Precision
ComplianceBIS
Core MaterialFerrite
Dimensions100x80x60 mm
FeaturesVoltage Control, Compact Design, Silent Operation, Durable, High Precision, Efficient
Input Voltage230 V AC
Output VoltageVariable
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Radiotone 0.5 A Single Layer Variable Auto Transformer - Frequency (Mhz): 400 Hz Hertz (Hz)
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Radiotone Single Layer Three Phase Variable Auto Transformers - Frequency (Mhz): 50/60 Hz Hertz (Hz)
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1500 A Three Phase Oil Cooled Variable Auto Transformer - Frequency (Mhz): 50 Hertz (Hz)
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Open Dimmerstat Auto Transformer - Stainless Steel, Single-Phase, Voltage Booster Up To 10X , Reliable & Efficient Power Supply for Extreme Conditions
MOQ100 Unit/Units
Voltage Booster TypeDry
MaterialStainless Steel
PhaseSingle Phase
UsageIndustrial
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Stainless Steel 3 Phase Auto Transformer
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3 Phase Auto Transformer Oil Filled Type High Voltage: 440 Volt (V)
Price Trend: 15000.00 - 25000.00 INR/Unit
MOQ1 , Unit/Units
Low Voltage220 Volt (V)
High Voltage440 Volt (V)
Product TypeOther, Transformer Oil Filled Type
MaterialMild Steel
PhaseThree Phase
UsageFor Electric Supply Use
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3 Phase Auto Transformer Dry Type High Voltage: 440 Volt (V)
Price Trend : 15000.00 - 25000.00 INR
Auto Transformer Starting Induction Motor High Voltage: 440 Volt (V)
Price : 50000 INR
Single Phase Variable Auto Transformer - 10 kV to 35 kV Rated Voltage, Altitude up to 4000 m | 50 Hz Frequency
DimensionsVariable
FeaturesVoltage control, Smooth operation, Single phase, Compact design, Durable, Reliable performance, High efficiency, Easy installation
Frequency50 Hz
MaterialSteel, copper
PhaseSingle
Power SourceElectric
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Variable Auto Transformer Variac Dimmer Application: Power
Price : 10560 INR
Automatic Dry Type Cast Resin Transformer Frequency (Mhz): 50 Hertz (Hz)
Price: 1445000 INR/Unit
MOQ1 Unit/Units
Low Voltage433 Volt (V)
Product TypeDry Type Transformer
MaterialMetal
Frequency (MHz)50 Hertz (HZ)
PhaseThree Phase
UsageIndustrial
High Performance Auto Transformer For Industrial Use - Copper Core, Color Coated, 50/60 Hz | Commercial Usage
Coil MaterialCopper Core
Product TypeElectrical Transformer
Frequency (MHz)50, 60 Hertz (HZ)
UsageCommercial
Auto Transformers Usage: Industrial
MOQ1 Piece/Pieces
Product TypeOther, Auto Transformers
UsageIndustrial
Power ScopeElectric
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Variac Auto Transformers
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Gray Auto Transformer
Price Trend: 10000-1000000 INR/Piece
MOQ1 Piece/Pieces
UsageIndustrial
MaterialMild Steel
Product TypeAuto Transformer
ColorGray
Auto Transformer - Superior Quality Design | Economical Rates, Excellent Performance, High Reliability
DimensionsDiameter, Height
FeaturesVoltage regulation, Isolation, Efficiency, Compact size, Durability, Cost-effective
Frequency50-60Hz
Input Voltage230VAC
MaterialCopper, Steel
Output Voltage115VAC
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Auto Transformer & Customise Transformers
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Automatic Step Voltage Regulator Transformer - MS, 63 kVA, 415V, 60Hz, Painted, Air Cooled | Rust Free, Three Phase, Power Supply
Price: 900000 INR/Unit
MOQ1 Unit/Units
Product TypeOther, Automatic Step Voltage Regulator Transformer
MaterialMS
PhaseThree Phase
UsagePower Supply
FeaturesRust Free
Auto Transformer
Dimensions25x20x15 mm
FeaturesVoltage regulation, Energy efficiency, Compact design, Durable, Easy installation, Wide voltage range, High performance
Frequency50/60Hz
InsulationClass B
MaterialCopper, Ferrite
Power rating100W
Power Grade Electrical Auto Transformers
ApplicationPower grade
CoolingOil cooled
FeaturesVoltage regulation, Power adjustment, Three phase, Oil cooled, Fully automatic, Reliable, Efficient
Frequency50/60 Hz
GradeFully automatic
PhaseThree phase
Variable Auto Transformer - 3 kVA, Metal Material, Single Phase Power Supply| New Age Power Solution
Price: 500000 INR/Unit
MOQ1 Unit/Units
High Voltage220-440 Volt (V)
Cooling TypeAir Cooling
Product TypeVariable Auto Transformer
MaterialMetal
EfficiencyHigh
PhaseSingle Phase
Popular Auto Transformer
An AutoTransformer is a single-winding electrical transformer. The prefix
"auto" refers to a single coil functioning alone, not to any form of
automated device. In an auto transformer, parts of the same winding serve as
the transformer's main and secondary winding sides. A regular transformer, on
the other hand, contains separate primary and secondary windings with no
metallic conducting channel between them.
There are at
least three taps on the auto transformer winding where electrical connections
are made. Because a portion of the winding does "double duty," auto
transformers are frequently smaller, lighter, and less expensive than
traditional dual-winding transformers. Auto transformers also have lower
leakage reactance, smaller losses, lower excitation current, and higher VA
rating for a given size and mass.
Construction of Auto Transformer:
It basically consists
of two parts:
Conductors: The
autotransformer's conductors are composed of copper. They have a poor level of
resistance. The copper conductors are completely disconnected from one another.
Impregnated paper, mica, and other materials are used as insulating material.
Eddy current losses are also reduced by the insulation. The winding wraps
itself around the center. When compared to two winding transformers, a single
winding transformer requires less copper.
Core: The
core is utilised to transport flux from the primary to the secondary. The core
is constructed of magnetic materials such as silicon steel, CRGO steel, and
others. Because it has the lowest hysteresis losses, CRGO steel is the most
efficient material for core. The primary function of the core is to transport
flux from one section of the winding to another.
Properties of Auto Transformer:
- An auto transformer is a device that is both electrically and magnetically connected.
- Power is constant in an autotransformer.
- The total flux in an autotransformer is constant.
- The frequency of an autotransformer is constant.
- Voltage and current are affected by the number of revolutions.
- A phase-shifting device is another name for an autotransformer.
- Because autotransformers use a single winding, they have lower losses than two winding transformers.
- When compared to two winding transformers, the autotransformer has higher efficiency.
- Both iron and copper losses are reduced by using an autotransformer.
Buyers looking
forward to buy cutting-edge technology Auto Transformers must check out the
available range at Tradeindia. These transformers are known for heavy duty
performance, long service life and power efficiency. Get in touch with us to
get the best here at attractive prices.
Client Testimonials & Reviews
GangaramPatel
APEX ELECTRICALS
We have been associated with Tradeindia, since more than a year and we feel happy to say that their services have been excellent during our courtship and has become our effective marketing tool to explore the Domestic and International market. We wish to continue with their improving services in years to come. All the best for Tradeindia team.
We are greatly satisfied with your timely response. Thank you for the prompt response in intimating the queries.
Auto Transformer Price List
Product Name | Expected Price |
|---|---|
| Auto Transformers | 35000 |
| Auto Transformer Switches | 150000 |
| Auto Transformer Switches | 150000 |
| Auto Transformer | 25000 |
| Automatic Step Voltage Regulator Transformer | 900000 |
| Motor Starting Auto Transformer | 60000 |
| Auto Isolation Transformers | 40000 |
| Good Quality Auto Transformer | 19500 |
| Auto Transformers | 50000 |
| Auto Transformer | 7500 |
This Data was Last Updated on 2026-06-22
Auto Transformer Manufacturers | Suppliers in India
Company Name | Member Since |
|---|---|
Servokon Systems Limited Ghaziabad, India | 17 Years |
Mahesh Electrical Instruments Mumbai, India | 16 Years |
A. Nidhi Enterprises Mumbai, India | 14 Years |
Gujarat Plug-in Devices Pvt. Ltd. Vadodara, India | 13 Years |
Ctr Manufacturing Industries Private Limited Pune, India | 13 Years |
Labsoul India Ambala Cantt, India | 13 Years |
Purevolt Products Pvt. Ltd. New Delhi, India | 13 Years |
Edutek Instrumentation Ambala Cantt, India | 12 Years |
I And I International Co. Ltd. Taipei, Taiwan | 10 Years |
Starlit Electricals Pune, India | 10 Years |
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