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Integrated Transformer Testing Solution

The Integrated Transformer Testing Solution from KVTEK is a comprehensive modular system designed to test all critical electrical parameters of power and distribution transformers. It provides accurate measurement of no-load loss, load loss, impedance, induced voltage, heat run, and partial discharge — all within a unified test bay.

Engineered for high-performance laboratories and transformer manufacturers, the system integrates a static frequency converter, multi-tap step-up transformer, capacitor bank, TLM loss measuring system, and optional PD test components, ensuring maximum flexibility, precision, and automation in compliance with IEC/ANSI standards.

Function

  • Complete high-voltage testing platform for power and distribution transformers

  • Performs loss, impedance, dielectric strength, partial discharge, and thermal tests in one unified system

  • Combines multiple test functions with automated measurement and reporting

Application

  • Power transformer manufacturers

  • Utilities (Transmission & Distribution)

  • R&D and HV test laboratories

  • Transformer acceptance and type testing

Key Equipment

  • Static frequency converter (SFC)

  • 3-phase multi-tap step-up transformer

  • MVAr-rated capacitor bank with manual/auto isolator switching

  • Transformer Loss Measuring System (TLM)

  • Optional multi-channel PD detector with HV filter

Equipment Specification

SFC Specifications

  • Output voltage: 350–580 VAC

  • Output frequency: 40–200 Hz

  • Power rating: 20 kVA to 10 MVA

  • Input voltage: 415–690 VAC ±5%

  • Total harmonic distortion: <3%

  • Voltage & frequency resolution: 0.1 V / 0.1 Hz

  • Protection class: IP21

  • Remote controlled via industrial PC (Profibus)

  • Efficiency: 96–98%

  • Optional harmonic current injection

Step-Up Transformer

  • 3-phase with high-frequency screens (Core–LV and LV–HV)

  • Operates from 40–400 Hz

  • Multiple secondary off-load taps

  • Low impedance and low flux density design

Capacitor Bank

  • Star/delta connected

  • Manual or automated MVAr stage selection

  • Protected against unbalanced current

  • Flexible MVAr rating configuration per application

Transformer Loss Measuring System (TLM)

  • High accuracy: ±0.5% of indicated power

  • Measures no-load loss, load loss, and impedance

  • Software-aided operation with automatic report generation

  • Eliminates manual range switching

  • IEC/ANSI compliant (40 Hz to 400 Hz operation)

Environmental Conditions

  • Ambient temperature: 5–40°C

  • Relative humidity: <95% (non-condensing)

Accessories

  • Wall bushings

  • Water chiller plant (for water-cooled SFCs)

  • Corona spinning system

  • Interconnecting busbars and cables

  • Intertwined copper ropes for test hookup

  • Integrated earthing network

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