1. The instrument is a high-precision testing instrument that integrates power meter verification, electrical parameter testing, and detection of power quality problems such as waveform distortion, voltage fluctuation, and three-phase unbalance in the power grid.

2. On the condition of no power failure, no change to the measurement circuit, and no opening of the measurement equipment, the comprehensive error of the online real-load detection measurement equipment.

3. Accurately measure voltage, current, active power, reactive power, phase angle, power factor, frequency and other electrical parameters to calculate the measurement error of the test equipment loop.

4. The vector diagram of the measured voltage and current can be displayed, and the user can obtain the correctness of the measurement equipment wiring by analyzing the vector diagram. At the same time, in the three-phase and three-wire connection mode, it can automatically determine 48 kinds of connection methods; the automatic calculation function of the supplementary power supply is convenient for the user to calculate the supplementary power supply for users with wiring problems.

5. The current loop can be measured with a clamp transformer, and the operator can measure conveniently and safely without disconnecting the current loop.

6. Verification indicators such as voltmeter, ammeter, power meter, and phase meter, as well as three-phase three-wire, three-phase four-wire, single-phase 1A, 5A active and reactive energy meters

7. The electric energy meter can be verified by photoelectric, manual, pulse and other methods.

8. Measurement and analysis of the AC power quality supplied by the public power grid to the user. The measurement analysis: frequency deviation, voltage deviation, voltage fluctuation, three-phase voltage allowable unbalance and grid harmonics.

9. Single-phase voltage and current waveforms can be displayed and three-phase voltage and current waveforms can be displayed simultaneously.

10. Load fluctuation monitoring: measure and analyze the fluctuations caused by various electrical equipment to the power quality of the public power grid under different operating conditions. Record and store power parameters such as voltage, current, active power, reactive power, apparent power, frequency, and phase.

11. Dynamic monitoring of power equipment adjustment and operation process to help users solve problems that occur during the adjustment and commissioning of power equipment.

12. Test and analyze the dynamic parameters of the reactive power compensation and filtering devices in the power system and make a quantitative evaluation of their functions and technical indicators

13. With perpetual calendar, clock function, real-time display date and time. The test data and results can be saved at the same time as on-site verification, and uploaded to the computer through the serial port, and the computerized data management can be realized through the background management software (optional accessory).

14. A large-screen imported color LCD is used as a display. The English graphical operation interface is equipped with a English character prompt information and a multi-parameter display LCD display interface. The human-machine dialogue interface is friendly.

15. Small size, light weight, easy to carry, can be used for on-site measurement, and can also be used as standard measurement equipment in the laboratory.