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Variable Transformers

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MOQ : 100 Sets

Variable Transformers Specification

Voltage Booster Type
Manual rotary adjustment

Rated Voltage
230 V AC input (standard), others on request

Dimension (L*W*H)
Varies per model, typically from 160x180x220mm to 650x400x450mm

Load Loss
Low (design optimized for minimal loss)

Capacity
0.5 kVA to 20 kVA

Operating Temperature
-10C to +45C

Cooling Type
Air Cooled

Low Voltage
0 V (output)

High Voltage
Up to 250 V (output)

Coil Material
High conductivity copper

Product Type
Manual Variable Transformer (Variac)

Material
Copper winding, high-grade silicon steel core, robust metal enclosure

Output
0-250 V or custom output range

Frequency (MHz)
50/60 Hz

Efficiency
Above 95%

Phase
Single Phase / Three Phase (as per model)

Usage
Voltage regulation, laboratory testing, industrial equipment, educational training

Coil Structure
Toroidal, continuous wound coil

Coil Number
Single or multi-coil (as per variant)

Power Scope
0.5 kVA to 20 kVA

Weight
3.2 kg to 65 kg (depending on model)

Noise Level
<45 dB (silent operation)

Safety Features
Overload protection, fuse, earthing provision

Duty Cycle
Continuous rated

Display
Analog voltage/current meter (optional)

Insulation Class
Class F or better

Control Method
Knob/rotary dial manual control

Standards Compliance
IEC/IS standards

Customization
Available for output range, capacity, and type

Winding Type
Single layer or multi layer as per application

Mounting Type
Tabletop or portable

Case Protection
Powder coated sheet metal enclosure

About Variable Transformers

Being a quality-centric organization, we are encouraged by our clients to manufacture, export and supply Variable Transformers. These transformers are highly demanded for electric power distribution systems to provide excellent power regulation with minimum variation. By making use of supreme quality raw material, the offered transformers are manufactured at our advanced manufacturing unit under the visionary observation of our adept professionals. We assure our clients the on-time delivery of these Variable Transformers at affordable prices.

Key Features:

High performance
Negligible maintenance
Heat resistance property
Longer service life

Specification

Min. Order Quantity	1 Piece(s)
Power	UPTO 5000KVA
Input Voltage	230 V TO 450 V
Phase	Three Phase
Condition	New
Output Type	Variable
Regulator Type	Linear Regulator
Brand	MEC
Automation Grade	Automatic

Reliable Voltage Regulation

Experience stable voltage output for all your critical applications. Our variable transformers facilitate smooth manual adjustment and precise control, ensuring that your sensitive equipment receives the accurate voltage required. This makes them indispensable for laboratory experiments, industrial machinery, and education settings where reliability is paramount.

Custom-Built To Suit Your Needs

We offer extensive customization options for output range, power capacity, winding type, and enclosure size. No matter your requirementsbe it higher output voltage, specific dimensions, or phase configurationeach unit can be tailored to optimize your workflow and space constraints. Ideal for manufacturers, exporters, and suppliers across India.

Robust Safety and Efficiency Features

The transformers are engineered with advanced safety mechanisms such as overload protection, fuse, and earthing provision. Their toroidal coil structure and high conductivity copper material ensure minimal load loss and over 95% operating efficiency. The powder-coated metal enclosure provides durability and protection, while silent air-cooled operation maintains a safe working environment.

FAQs of Variable Transformers:

Q: How does the manual rotary knob control adjust the output voltage on these variable transformers?

A: The manual rotary knob allows users to finely adjust the secondary coils position, varying the output voltage smoothly between 0 to 250 V or a custom range specified for your model. This direct control approach gives instant feedback for precise voltage regulation.

Q: What safety features are incorporated in these transformers to prevent electrical hazards?

A: Our transformers include overload protection, replaceable fuses, earthing provision, and a robust powder-coated enclosure to safeguard against overheating, short circuits, and accidental electric shocks during continuous operation.

Q: When should I use a variable transformer in laboratory or industrial settings?

A: Variable transformers are ideal for situations requiring stable and adjustable AC voltage, such as laboratory testing, calibration procedures, running industrial equipment at different voltages, or educational demonstrations needing variable power supply.

Q: Where can these variable transformers be installed or used most effectively?

A: Designed for tabletop or portable mounting, they are best placed on workbenches in laboratories, engineering classrooms, workshops, and production lines where easy access to controlled voltage is needed.

Q: What is the process for customizing a variable transformer to meet specific capacity or output requirements?

A: Simply consult with our engineering team, specifying your desired output voltage, power capacity, phase type, and other technical preferences. We tailor the transformers winding type, meter display options, enclosure size, and coil structure to your specifications.

Q: How do copper windings and silicon steel cores benefit transformer performance and longevity?

A: High conductivity copper windings paired with high-grade silicon steel cores enhance energy efficiency (>95%), minimize load loss, and provide robust magnetic performance, which significantly extends the transformers operational life and reduces maintenance costs.

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