Three Phase Air Cooled 100A Variable Auto Transformer in Coimbatore Tamilnadu and India

The Three Phase Air-Cooled 100A Variable Auto Transformer is a precision-engineered voltage control device designed to deliver step-less and smooth voltage variation across a wide range of industrial applications. Known for its efficiency, compact design, and long operational life, this transformer provides voltage regulation without waveform distortion.

At Beta Power Controls, we build rugged and reliable variable transformers using premium CRGO core and copper windings, suitable for both continuous and testing operations. This model is air-cooled and specially optimized for high-load three-phase applications, ensuring consistent voltage output and operational safety.

Technical Specifications

Parameter Details
Transformer Type Three Phase Variable Auto Transformer
Capacity 100 Amps
Input Voltage 415V / 440V AC
Output Voltage 0–470V Line-to-Line (adjustable)
Frequency 50Hz / 60Hz
Cooling System Natural Air Cooled

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Description

Technical Specifications

Parameter Details
Construction Open / Enclosed Type (Customizable)
Brush Type Carbon Graphite with Silver Alloy Options
Insulation Class Class B / F / H
Winding Material Copper (Standard) / Aluminum (Optional)
Efficiency >98%
Control Type Manual Rotary / Motorized (Optional)
Compliance IS 5142, IEC, ISO 9001:2015 Certified

Key Features

  • Smooth & Continuous Voltage Control – 0 to Full Line Voltage
  • Output Capacity: 100 Amps
  • Three Phase Air-Cooled Configuration
  • Compact open-frame or enclosed versions available
  • High Efficiency (>98%) with low core loss
  • Minimal waveform distortion
  • Low maintenance with brush-type carbon contact system
  • Insulation Class: B / F / H as per requirement
  • Voltage Stability and Overload Tolerance
  • Built to IS 5142 / IEC compliant standards

Applications

This three-phase variable transformer is ideal for:

  • Motor Testing Facilities
  • Transformer Test Benches
  • R&D Labs and Engineering Colleges
  • Load Simulation & Burn-in Testing
  • Power Conditioning in CNC Machines
  • Voltage Regulation for HVAC Systems
  • Industrial Automation Systems
  • Lighting Control in Theaters / Studios

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