WXPQ-300B Portable three-phase power quality analyzer

Product Introduction

Power quality refers to the quality of AC electric energy supplied to the client through the public grid, which is generally referred to the good or bad situation of electric energy in the grid line. The power quality problem is mainly caused by the terminal load side. For example, the impact reactive load will cause the power grid voltage to fluctuate sharply, reducing the quality of power supply.

With the development of power electronics technology, it not only brings the positive side of energy saving and energy transformation to modern industry, but also the wide application of power electronic devices in all walks of life has brought new and more serious damage to power quality, and has become the main harmonic pollution source of power grid.

The rectifier, frequency conversion speed regulating device, electric arc furnace, electrified railway and various power electronic equipment used in the distribution network of each client in the power grid system are increasing. It can affect or pollute the electricity network. Cause voltage instability, overvoltage, harmonics and so on. Harmonics reduce the efficiency of the production, transmission and utilization of electric energy, overheat the electrical equipment, produce vibration and noise, and make the insulation aging, shorten the life, and even malfunction or burn. Harmonics can also cause local parallel resonance or series resonance in the power system, so that the harmonic content is amplified, causing capacitors and other equipment to burn.

The nonlinear, impact and unbalanced power characteristics of these loads cause serious pollution to the quality of power supply. Therefore, the elimination of high order harmonics in power supply and distribution system has a very positive significance for improving power quality and ensuring the safe, stable and economic operation of power system.

On the other hand, the electrical equipment of modern industrial, commercial and residential users is more sensitive to power quality and puts forward higher requirements for power supply quality. At present, harmonics, electromagnetic interference and power factor reduction have been listed as the three major public hazards of power system.

When the power quality of the power grid is interfered with or polluted, and cannot reach the relevant national standards, it is necessary to improve the power quality of the power grid in a targeted way. To understand the actual situation of power quality in the power grid, it is necessary to have the corresponding equipment to test and analyze it. In view of the actual situation in China, our company has developed a professional power quality analyzer suitable for the national conditions in time. The following is a detailed description of the specific performance, parameters and use methods of the power quality analyzer.

Product names： Three-phase power quality analyzer、 Portable three-phase power quality tester、 Portable three-phase power quality measuring instrument、 Power quality analyzer

Product Parameters

Technical parameter

Product Characteristic

1、The instrument is a high-precision measuring instrument specially used to detect power quality problems such as waveform distortion, harmonic content and three-phase unbalance in power grid. At the same time, it also has the function of electrical parameter testing and vector analysis

2、It can accurately measure voltage, current, active power, reactive power, phase Angle, power factor, frequency and other electrical parameters

3、It can display the vector diagram of the measured voltage and current, and the user can get the correct connection of the metering equipment by analyzing the vector diagram

4、The current is measured by clamp transformer. Because the operator does not need to disconnect the current circuit when using the clamp current transformer measurement, it can be convenient and safe to measure. According to the user's different measuring range can be selected different range of clamp meter

5、It can measure and analyze the AC power quality supplied by the public grid to the client end, and its measurement and analysis: frequency deviation, voltage deviation, three-phase voltage allowable unbalance degree and grid harmonics

6、Display single-phase voltage and current waveform and display three-phase voltage and current waveform at the same time

7、All test interfaces have screen lock function for easy reading and analysis of data

8、Load fluctuation monitoring: Measure and analyze the fluctuation of power quality caused by various electrical equipment in different operating states. Periodically record and store the trend of voltage, current, active power, reactive power, apparent power, frequency, phase and other power parameters

9、Power equipment adjustment and operation process dynamic monitoring, help users to solve the problem of power equipment adjustment and operation process

10、It can test and analyze the dynamic parameters of reactive power compensation and filter device in power system and make quantitative evaluation of its function and technical index

11、You can set different storage intervals to store data continuously

12、Built-in large capacity data storage, storage interval from 5 seconds to 5 minutes adjustable; It can be continuously stored for more than 18 months at a time interval of 1 minute, which can meet the needs of long-term monitoring test sites

13、Power quality analyzer with USB interface, can easily copy data directly to the background management computer

14、With powerful data management software, real-time sampling data can be directly uploaded to the background management computer for more comprehensive and faster processing in the background

15、With perpetual calendar, clock function, real-time display of date and time. The test data and results can be saved at the same time of on-site testing, and uploaded to the computer through the serial port, and the data can be microcomputerized management through the background management software (optional accessories), with powerful report function

16、Adopt large screen imported color liquid crystal as the display, Chinese operation interface and equipped with Chinese prompt information, multi-parameter display LCD display interface, human-machine dialogue interface friendly

17、3 minutes no operation The LCD automatically enters the power saving mode in order to maximize the battery working time

18、Conductive silicone button, feel good, long life, reasonable design, easy to operate

19、Built-in large capacity, high-performance lithium-ion rechargeable battery, fully charged continuous operation of more than 10 hours

20、Small size, light weight, easy to carry, can be used for field measurement use, can also be used as a standard laboratory measurement equipment