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Inverter Tests

INMETRO Tests Ordinance 004/2011

  • Flicker;

  • Continuous component injection;

  • Harmonics and waveform distortion;

  • Power factor;

  • Injection/reactive power demand;

  • Over/under voltage;

  • Over/under frequency;

  • Control of active power in overfrequency;

  • Reconnection;

  • Out-of-phase automatic reclosing;

  • Active power modulation;

  • Reactive power modulation;

  • Disconnection of the photovoltaic system from the grid;

  • Supportability requirements for undervoltages resulting from faults in the network;

  • Protection against polarity reversal;

  • Overload;

  • Anti-Islanding

Standards

  • IEC 61000-3-3;

  • IEC 61000-3-5;

  • IEC 61000-3-11; 

  • ABNT 16149;

  • ABNT 16150; 

  • ABNRT 62116.

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INMETRO Tests Ordinance 140/2022 and Ordinance 515/2023

  • Visual inspection

  • Overload support on photovoltaic doors

  • Support for polarity reversal in photovoltaic doors

  • Out-of-phase automatic reclosure support

  • Detection and interruption of insulation faults in photovoltaic doors

  • Detection and interruption of excessive residual current at the mains connection port

  • Continuous component injection into the network connection port

  • Harmonics and current waveform distortion at the grid connection port

  • Fixed power factor at the grid connection port

  • Power factor with PF curve at the grid connection port

  • Reactive power injection/demand at the grid connection port

  • Over/Under voltage at the mains connection port

  • Over/Under frequency on the network connection port

  • Voltage fluctuation on the grid connection port

  • Loss of network on the network connection port (unintentional islanding)

  • Immunity to underfrequency active power variation at the grid connection port

  • Active power control in overfrequency at the grid connection port

  • Immunity to transient over/underfrequency and frequency variation rate at the grid connection port

  • Immunity to transient over/undervoltages on the grid connection port

  • Connecting and reconnecting to the network connection port

  • Active power limitation on the network connection port

  • Reactive power modulation at the grid connection port

  • Disconnection of the photovoltaic system at the grid connection port

  • Conversion efficiency

  • Radio frequency disturbance emission

  • Electric arc

Standards

  • ABNT 16149

  • ABNT 16150

  • IEC 62109-2

  • ABNT 62116

  • CISPR11

  • IEC 61000-6-1-3

  • IEC 61000-6-1-4

  • IEC 62920

  • IEC 63027:2023

  • IEC 62891

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LESF Quality Tests with Scope

Each test includes a description, passing criteria, result classification and presentation of results. These tests are essential to ensure the quality, efficiency and safety of photovoltaic inverters and their behavior in different operating conditions.

  • Category 1: Efficiency

  • Category 2: Thermal Behavior

  • Category 3: Behavior with Partial Shading

  • Category 4: Destructive Testing

Do you have any questions? Talk to us via WhatsApp!

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