HIGHVOLT Prüftechnik Dresden GmbH

Marie-Curie-Str. 10, 01139 Dresden
Germany

Hall map

wire 2020 hall map (Hall 11): stand A26

Fairground map

wire 2020 fairground map: Hall 11

Our range of products

Product categories

  • 05  Testing technology, sensor technology and quality assurance for the wire and cable industry
  • 05.02  Product testing
  • 05.02.23  Test benches
  • 05  Testing technology, sensor technology and quality assurance for the wire and cable industry
  • 05.02  Product testing
  • 05.02.28  Laboratory test equipment
  • 05  Testing technology, sensor technology and quality assurance for the wire and cable industry
  • 05.05  Quality assurance systems (incl. factory data acquisition)

Our products

Product category: Test benches, Laboratory test equipment, Quality assurance systems (incl. factory data acquisition)

AC resonant test system with variable inductance, metal tank type

The WR AC resonant test systems with variable inductance are used for factory testing of medium and high voltage cables, high voltage capacitors, generators, and motors. They use the resonance between the capacitive test object and the
inductive HV reactor of the test system to generate a continuous sinusoidal high voltage. The natural resonance frequency of the test circuit is matched to the feed-in mains frequency 50/60 Hz by setting the variable inductance of the HV reactor.
If the HV reactor and test object are designed to form a series resonant circuit, the result will be an ideal sinusoidal testing voltage. The oil-cooled HV reactor is installed in a closed steel tank. The high voltage is fed outward through the steel tank via a HV bushing. The reactor can be fitted with additional voltage taps (bushings) to achieve largest testable capacitances of test objects at lower test voltages.

Application
  • For routine testing of medium and high voltage cables up to 400 kV in accordance with IEC 60502 und IEC 60840
  • For routine testing of high voltage capacitors up to 60 kV in accordance with IEC 60871
  • For routine and inspection testing of generators and motors up to 60 kV in accordance with IEC 60034
Benefits
  • Low level of partial discharge < 2 pC
  • Higher duty cycle thanks to excellent cooling properties
  • Low power demand due to high quality factor
  • Ideal sinusoidal test voltage for series resonance systems
  • Low noise level thanks to special mechanical design
  • Low maintenance operation over the entire service life of the test system

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Product category: Test benches, Laboratory test equipment, Quality assurance systems (incl. factory data acquisition)

AC resonant test system with variable inductance, modular insulating case

The WRM AC resonant test systems with variable inductance are used for factory testing of high and ultra-high voltage cables, power transformers, and gas-insulated switchgears.They use the resonance between the capacitive test object and the inductive HV reactor of the test system to generate a continuous sinusoidal high voltage. The natural resonance frequency of the test circuit is matched to the feed-in mains frequency 50/60 Hz by setting the variable inductance of the HV reactor. The HV reactor and the test object form a series resonant circuit, resulting in an ideal sinusoidal resonance voltage. The oil-cooled HV reactor is installed in a closed container made of steel and insulating cylinders. The module setup enables you to connect the reactors in series or in parallel for extending the range of voltage and/or current. The individual modules can be installed above or next to one another.

Application
  • For routine testing of high and ultra-high voltage cables up to 800 kV in accordance with IEC 60840 and IEC 62067
  • For inspection testing of high and ultra-high voltage cables and cable assemblies up to 1600 kV in accordance with IEC 60840 and IEC 62067
  • For applied voltage testing of power transformers up to 1600 kV in accordance with IEC 60076
  • For testing of gas-insulated switchgears up to 1600 kV in accordance with IEC 62271-203
  • For testing of voltage transformer including testing with higher frequencies and performing dynamic tests up to 1600 kV in accordance with IEC 60044
Benefits
  • Low level of partial discharge < 2 pC
  • Extremely high test voltages thanks to the possibility of cascading the high voltage modules
  • High degree of variability of voltage and power parameters thanks to single, series, or parallel operation of high voltage modules
  • Low supply power thanks to high-quality resonance reactor
  • Ideal sinusoidal test voltage thanks to series resonant circuit
  • Low noise level thanks to special mechanical design
  • Low maintenance operation over the entire service life of the test system

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Product category: Test benches, Laboratory test equipment, Quality assurance systems (incl. factory data acquisition)

AC test system with variable frequency

For on-site testing of HV cables
Withstand voltage tests on XLPE cables can be performed using the AC test system with variable frequency once laid on-site. The test system operates in a frequency range from 20 Hz to 300 Hz and complies with the requirements according to IEC 60840 and IEC 62067. An individual test system is designed for tests of up to 260 kV and 83 A, which facilitates testing of high-voltage cables that can be several kilometers in length. Several test systems can be conveniently connected in series when higher test voltages are required or in parallel when testing cables of up to 100 kilometers in length. These systems can even be used to test ultra-long submarine cables that connect offshore wind farms. The test system has been mounted on a standard-sized trailer, which facilitates transport to the specific site. The test system can be set up on-site within an hour without cranes or similar equipment.

Application
  • On-site testing of XLPE terrestrial and submarine cables
  • Withstand voltage testing
  • Partial discharge measurements (primarily in cable sleeves or short cables)
Benefits
  • Pure sinusoidal voltage at the output
  • Low PD background noise level < 10 pC
  • IEC-compliant frequency range from 20 Hz to 300 Hz
  • Several systems can be connected in series or parallel to increase test voltage and/or power.
  • Quick and easy setup of test system
  • Maintenance-free, no moving parts

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About us

Company details

HIGHVOLT is a global leader in high voltage and high current test and measuring systems.

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