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TEST LABS

Current Impulse Generator

The HVEX Current Impulse Generator is the advanced solution for performing impulse dielectric tests on high and medium voltage equipment, ensuring accurate assessment of electrical integrity against lightning discharges and switching surges. Designed to meet international standard requirements,it allows for the controlled generation of high current peaks and residual voltages with extreme precision. Technical Operating Range: • Adjustable impulse current: 1 kA to 350 kA. • Residual voltage: from 0.5 kV to 250 kV. • Waveforms: impulse front from 1 µs to 10 µs, tail from 4 µs to 700 µs. • Square waveforms: simulation of line discharges, arresters, and surge protective devices (SPDs). This flexibility makes the equipment ideal for test laboratories, electrical equipment manufacturers, power utilities, and high voltage research centers. Typical Applications: • Testing of arresters. • Spark gap testing. • Simulation of direct and indirect lightning discharges. • Tests on transformers, cables, insulators, and substation equipment. • Standard tests for homologation and certification of electrical products. Standards Met: • IEC 60060 – High-voltage test techniques • IEC 60099-4 – Metal-oxide surge arresters for AC systems • IEC 62305-1 – Protection against lightning (protection of structures and equipment) • IEC 61643-11 – Surge protective devices for low-voltage systems • NBR 6939 – Impulse current tests for surge arresters Technical Advantages: • High accuracy and repeatability in impulse tests • Precise control of waveform, current, and residual voltage • User-friendly operating software with an interface for data logging and analysis • Modularity that allows for customization for different industrial and laboratory applications • Full compliance with international and national standards

Technical Information

Standards Complied
IEC 60060, IEC 60099-4, IEC 62305-1, IEC 61643-11, NBR 6939
Discharge Current
Up to 200 kA, according to customer application
Residual Voltage
Up to 200 kV, according to customer application
Current Impulse
8 × 20 µs (IEC 60099-4 standard for lightning impulse tests)
Capacitance of Each Charge Unit
1 to 10 μF, totaling up to 200 uF

Vital Performance for Dielectric Resilience

HVEX Combined Wave Impulse Generators are crucial elements for evaluating the dielectric withstand of electrical equipment, providing a robust layer of resilience against the impacts of atmospheric discharges. Designed to meet various voltage ranges, these generators comply with the industry's most demanding standards, including IEC 60060, IEC 60099-4, IEC 62305-1, IEC 61643-11, and NBR 6939.

HVEX | Vital Performance for Dielectric Resilience
HVEX | Benefits and Usability

Benefits and Usability

  • HVEX | Project Customization
    Project Customization

    Compact ring-type design and configurable reactors for generating customized impulses.

  • HVEX | Waveform Adjustment
    Waveform Adjustment

    Centralization of all functions in a workstation, allowing remote control.

  • HVEX | Waveform Efficiency
    Waveform Efficiency

    Production of impulses in the 8 × 20µs format, with customization option upon customer request.

HVEX | https://imagedelivery.net/l1XodOiUMwrotHtpvclI7Q/251c58f1-d67f-404c-8787-8c4eee4be000/banner2k

Enjoy the benefits of LIAS

  • Data storage

    With the solutions, it is possible to have a database and all the records of tests performed for later queries.

  • Complete analysis

    Automatically analyzes front times, half-wave, maximum value, oscillation coefficient, residual voltage, and maximum current.

  • Automatic reports

    Through HVEX LIAS, it is also possible to automatically generate custom technical reports in .pdf and .doc formats.

  • Specialized support

    Have unlimited access to national software support, in addition to constant platform updates.

Exclusive Features

  • HVEX | ImageHigh performance
  • HVEX | ImageCompact and customizable
  • HVEX | ImageWide application

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