Laboratory service

Tests on distribution transformers

Ensayos de transformadores de distribución

We carry out full type tests on dry and oil-immersed distribution transformers, according to the IEC 60076 set of standards.

Maximum capacities: 36 kV, 5000 kVA.

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

TESTS

  • Measurement of winding resistance
  • Measurement of voltage ratio and check of phase displacement
  • Measurement of short-circuit impedance and load loss
  • Measurement of no-load loss and current
  • Measurement of zero-sequence impedance(s) on three-phase transformers
  • Leak testing with pressure for liquid immersed transformers
  • IEC 60076-3 individual dielectric tests
  • IEC 60076-15 Leakage and pressure tests for gas-filled power transformer tanks
  • IEC 60076-11 19 Applied Voltage Test
  • IEC 60076-11 20 Induced Voltage Withstand Test
  • IEC 60076-11 21 Lightning Impulse Test
  • IEC 60076-11 22 Partial Discharge Measurement (routine and special test)
  • IEC 60076-2 Temperature Rise Tests
  • IEC 60076-10 Determination of Sound Levels
  • IEC 60076-5 Ability to withstand short circuits
  • Measurement of absorbed power
  • Measurement of losses and the no-load current at 90% and 110% of the rated voltage
  • IEC 60076-11 26 Environmental Tests
  • IEC 60076-11 27 Climatic Tests
  • Frequency Response Analysis FRA

CAPACITIES

  • Short-circuit Tests: 100 kA, 1 s
  • Large chambers for temperature rise tests at high temperatures: 5.5 x 4 x 4 m; 4.2 x 3 x 2.6 m

Aimed at:

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

Accreditation 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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Catálogo: servicios de ensayos y evaluación para redes eléctricas inteligentes y para redes de transporte y distribución

Smart grids and transportation and distribution networks testing brochure

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Catálogo: servicios e infraestructuras de I+D para las redes eléctricas inteligentes

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

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