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ELECTRICAL TRANSFORMERS

TECHNICAL SPECIFICATION

Electrical transformers are essential power equipment used to efficiently transfer electrical energy between circuits by electromagnetic induction while maintaining a constant frequency. They are designed to step up or step down voltage levels to ensure safe, reliable, and efficient power transmission and distribution across industrial, commercial, and utility applications. Manufactured using high-quality core materials and precision-engineered windings, electrical transformers deliver high efficiency, low losses, and long operational life. Built to comply with international standards, they are available in various ratings and configurations to suit indoor and outdoor installations, offering dependable performance even under demanding operating conditions.

Standards & Compliance

Manufactured and tested in accordance with national and international standards:

  1. IS 1180 / IS 2026
  2. IEC 60076
  3. IEEE / ANSI Standards
  4. BIS / CE Certification (as applicable)
  5. ISO 9001: Quality Management System

Transformer Types Available

  • Power Transformers
  • Distribution Transformers
  • Dry-Type Transformers
  • Oil-Filled Transformers
  • Isolation Transformers
  • Auto Transformers
  • Special Purpose Transformers
Parameter Specification
Power Rating 10 kVA to 25,000 kVA
Frequency 50 / 60 Hz
Primary Voltage Up to 66 kV
Secondary Voltage 415V / 400V / 230V or as required
Phase Single Phase / Three Phase
Vector Group Dyn11, Yyn0, Dd0, as specified
Impedance 4% – 10% (customizable)
Tap Changer Off-Circuit / On-Load (OLTC)
Voltage Regulation As per IEC / IS standards

Standard Accessories

  • Conservator tank
  • Silica gel breather
  • Oil level indicator
  • Winding & oil temperature indicator
  • Pressure relief device
  • Drain & filter valves

Optional Accessories

  • Buchholz relay
  • Magnetic oil gauge with alarm
  • RTD sensors
  • Online monitoring system
  • Surge arresters

Applications

  • Power distribution networks
  • Industrial plants & factories
  • Commercial buildings
  • Renewable energy systems
  • Infrastructure & utilities

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