Laboratory service

Tests on instrument transformers

Ensayos de transformadores de medida

We carry out full type tests on low, medium and high voltage instrument transformers (current, voltage, combined) according to the IEC 61869 set of standards.

We have full capacity to carry out the following accredited tests at our electrical laboratories: 

TESTS ACCORDING TO IEC STANDARDS

  • Temperature rise test
  • Impulse voltage withstand test on primary terminals
  • Wet test for outdoor type transformers
  • Electromagnetic compatibility tests
  • Precision Tests
  • Verification of the degree of protection of enclosures
  • Short-time current test
  • Pressure test on enclosures

Individual Tests:

  • Power frequency withstand voltage tests on primary and secondary terminals and between sections
  • Precision Tests
  • Inter-turn Overvoltage Tests
  • Marking verification

Special Tests:

  • Chopped Impulse Test on Primary Terminals
  • Capacity and dielectric dissipation factor measurement
  • Mechanical Tests
  • Transmitted Overvoltages Test

CAPACITIES 

  • Short-circuit Tests: 150 kA, 1 s
  • Power frequency withstand voltage tests (dry and wet); 550 kV
  • Lightning Impulse Tests: 1800 kV
  • Partial Discharge Tests: 550 kV
  • Temperature Rise Tests: 10 kA

Aimed at:

  • Electrical Companies
  • Engineering Firms
  • Manufacturers of Instrument Transformers
  • Installers
  • Electrical Maintenance Firms
  • Industrial Plants
  • Promoters of Renewable Energy Farms

Accreditations and Recognition

Acreditación ENAC ILAC para el sector materiales según ISO 17025 con nº expediente 4/LE148
ENAC ILAC accreditation for electrical testing in compliance with ISO 17025, under file No. 4/LE148
Organismo Notificado Nº 1292 para el Reglamento de Productos de la Construcción
Official Body certified by the Electromagnetic Compatibility EMC 2014/30/UE Directive
Organismo Notificado Nº 1292 para el Reglamento de Productos de la Construcción
Official Body certified by the Low Voltage Directive 2014/35/UE
Organismo Notificado Nº 1292 para el Reglamento de Productos de la Construcción
Official Body certified by The Measuring Instruments Directive 2014/32/EU
Lovag
ES-02 registered laboratory by the LOVAG (Low Voltage Agreement Group) European Association
IEC
IECEE CB testing laboratory
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Smart grids and transportation and distribution networks testing brochure

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Technological services and R&D infrastructures for smart grids brochure (Spanish)

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