The WZ-3050 three-phase programmable precision testing power supply can generate three-phase high-power power frequency voltage and current signals with adjustable amplitude, phase, frequency, and stable power. Mainly used for testing and calibration of digital indicators such as voltmeters, ammeters, phase meters, frequency meters, power meters, and power factor meters, as well as testing and calibration of electrical sensors such as instrument voltage transformers, instrument current transformers, clamp current transformers, and testing and calibration of electrical transmitters such as voltage transmitters, current transmitters, power transmitters, power factor transmitters, and frequency transmitters; Testing and calibration of electrical testing instruments such as energy meters, relays, reactive power compensation controllers, power data collectors, power parameter testers, voltage monitors, distribution load monitors, multifunctional power meters, and loss of voltage and current timers.

This three-phase power supply adopts microcomputer control, advanced technology, full process control, full button operation, small size, light weight, easy to carry, and can be used both in laboratories and on site.

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1. Provide stable voltage, constant current, phase-shiftable, and variable frequency three-phase high-power power frequency sine signals;

2. When there is an operational error, such as voltage short circuit, current open circuit, or wiring error, the output can be automatically stopped and an alarm can be triggered;

3. The instrument is operated with all buttons, and there is no mechanical contact point in the whole machine. All buttons are programmed and set;

4. Configure coarse and fine adjustment potentiometers on the panel, which can adjust the amplitude of voltage and current for each phase in the three-phase system;

5. Equipped with RS232 communication interface, which can be operated through upper computer software;

6. Voltage, current, phase, and frequency are displayed on high-definition digital tubes;

7. The power amplifier adopts imported high-power VMOS devices, which work absolutely reliably;

8. Adopting single-chip microcomputer control, ultra large scale integrated circuit and other technologies, with small size, light weight and high technical content.

1. Voltage range range: 600V optional, 380V, 220V, 100V, 57.7V, 30V, all range ranges can be continuously adjusted from 0 to 120% of the rated value;

2. Current range range: 60A optional, 20A, 10A, 5A, 1A, 0.2A, all range ranges can be continuously adjusted from 0 to 120% of the rated value;

3. The phase output can be continuously adjusted from 0 to 360 °, and there are six quick test points for 300 °, 330 °, 0 °, 30 °, 60 °, and 90 °, with a fineness adjustment of 0.01 °;

4. Output signal frequency: 40Hz-70Hz, adjust the fineness to 0.01Hz.

5. The stability of output voltage, current, and power is better than 0.05% (PF=1100S), and the waveform distortion is less than 0.5%; (At maximum output power, waveform distortion is less than 1%);

6. High definition digital display of voltage, current, phase, and frequency, with a display accuracy of 0.5%;

7. Output power: Voltage per phase: 30VA

Current per phase: 50VA

8. Power supply: 220V ± 10%, maximum power consumption 800VA;

9. Working environment temperature: 20 ℃± 10 ℃; Humidity: 35-85%;

10. Instrument volume: 500 × 225 × 520mm3;Instrument weight: 30kg