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Main functions of power grid simulator.

1. The three-phase voltage can be adjusted independently, and the phase setting range is 0-360 degrees;

The output three-phase voltage value and phase can be adjusted independently without mutual influence. The voltage of each phase (2 phases) can be set arbitrarily. The phase can be adjusted from 0 to 360 degrees without dead angle;

2. It can inject multiple harmonics to simulate the quality adaptability test of power grid;

The interference source can be created by human intervention, the harmonic number can be superimposed 2-50 times, at the same time, more than 5 kinds of different harmonics can be injected, and the total harmonic content is not less than 15%;

3. It has synchronous trigger function, which is convenient and accurate for zero, low and high voltage ride through test;

With single-phase / two-phase independent low through and high through functions, the voltage can drop below 5V instantly, drop to 1% of the set voltage, rise to 150% of the working voltage, and the dynamic response is 1ms. It can meet the low voltage ride through test detection of Solar inverter and wind turbine type test. It is also suitable for grid connection acceptance of Solar power station, grid connection acceptance of wind farm, type test of Solar inverter and low voltage ride through detection platform of wind turbine;

4. The output frequency is 45-65hz, continuously adjustable, and the step distance is 0.01Hz. It is easy to do under frequency experiment and anti islanding experiment;

5. It has memory function, and can set several groups of common voltage, frequency and phase parameters for storage, which is convenient to use with one key;

6. With step programming mode, each step can set the output voltage, frequency, operation time, etc., cycle operation and cycle times;

7. It has the mode of gradual change and jump of output voltage and frequency, and can set the starting voltage and frequency of gradual change, and the ending voltage, frequency and time of gradual change;

8. High measurement accuracy, suitable for testing half sine wave and other similar waveforms with DC component;

9. Output current and voltage limiting function;

10. Protection mode: overvoltage, overcurrent, overheating, overload, short circuit, current limiting, voltage limiting, etc;

11. For 100% unloading and loading, the reaction time is less than 20ms, the overload capacity is strong, and the instantaneous current can bear three times of the rated current;

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