The portable three-phase power quality analyzer is a special portable product for detecting and analyzing the quality of power grid operation. It can provide data analysis such as harmonic analysis and power quality in power operation, and is equipped with a large-capacity memory, which can carry out long-term data collection and testing on the operation of the power grid. It is also equipped with PC application software to upload the collected data to the computer, which is convenient Perform various analyses.
Overview
● Use ARM and DSP and 16M bytes of memory;
● The meter adopts a touch screen which makes the operation simpler and more convenient;
● Can perform measurement save the data and upload it to the PC for analysis;
● Modular structure reasonable design reliable operation;
● English menu operation easy to learn;
● The instrument software can be updated with a USB disk and the software upgrade is simple and convenient;
● Use power quality data analysis software to analyze the measurement data in detail on the PC.
Product Functions
● Voltage/Current/Frequency: It can measure three-phase voltage neutral line voltage three-phase current neutral line current frequency etc.
● Harmonic measurement: it can measure up to the 50 times of harmonic. The measurement results include the amplitude of each harmonic voltage and each harmonic current the total distortion of voltage harmonics (total distortion rate) the containment rate of each voltage harmonics/ each current harmonics.; can display harmonic spectrogram.
● Power measurement: it can measure three-phase apparent power active power reactive power power factor three-phase electric energy etc.
● Three-phase unbalance measurement: can measure three-phase voltage unbalance and positive sequence negative sequence zero sequence voltage; three-phase current unbalance and positive sequence negative sequence zero sequence current; can display voltage vector current Vector illustration.
● Surge current: at least 40 surge current events can be recorded.
● Fluctuation/flicker: Fluctuation short-term flicker and long-term flicker measurement.
● Sudden voltage rise % fall: Sudden voltage rise and voltage fall events can be recorded and up to 40 events can be recorded.
● Monitoring and recording: Basic (steady-state) power quality parameters can be recorded for a long time and the recording interval is adjustable from 3 seconds to 30 minutes.
● Digital oscilloscope: can be used to view the voltage/current signal waveform.
典型应用
1、前端排障：利用屏幕显示快速诊断故障，使系统恢复正常工作
2、预测性维护：在发生停工之前检测并预防电能质量问题
3、服务质量：在用户引入线处检查电能质量
4、长时间分析：检测难以发现或间歇性的故障
5、负载研究：增加负荷之前检查电气系统的容量
6能量评估：在改造前后对能耗进行量化评估，以证明节省设备的效果
Models
| Item name | Measurement range | Accuracy | Explanation: | |
| Voltage/ current/ frequency |
Three-phase voltage: 10 – 700V (true RMS) Neutral line voltage: 1~70V (true RMS) Three-phase current: 0.5~1000A (true RMS 1000A current sensor is optional) Neutral line current: 0~25A (true RMS 25A current sensor is optional) Frequency: 30~80Hz |
Voltage: ±0.5% Current: ±0.5% Frequency: ±0.01Hz |
Here the phase A voltage frequency is used as the measurement frequency | |
| Harmonic measurement |
Voltage harmonics: total harmonics +1 ~ 50th harmonics. Current harmonics: total harmonics +1 ~ 50th |
Voltage harmonics: ±0.1(%f) Current harmonics: ±0.05(A) |
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| Power measurement |
Active power: 0.05~700KW Apparent power: 0.05~700KVA Reactive power: 0.05~700KVAR Power factor: 0.00~1.00 Active electric energy: 0.01~10000kWh Apparent electric energy: 0.01~10000kVAh Reactive electric energy: 0.01~10000kVARh Average power factor: 0.00~1.00 |
Reactive power: reading ±2% Power factor: reading ±0.005% Active electric energy: reading ±2% Apparent electric energy: reading ±2% Reactive electric energy: reading ±2% Average power factor: reading ±2% |
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| Three phase un-balance |
Fundamental voltage: 10 ~ 700V (true RMS) Fundamental current: 0.5 ~ 1000A (true effective value) Fundamental frequency: 40 ~ 70Hz Phase angle: 0 ~ 360 ° Unbalance: 0.0% ~ 100% |
Voltage: 0.5%; Current: 0.5% Frequency: reading ± 0.01Hz Phase angle: reading ± 0.3 ° Voltage unbalance: reading ± 0.2 Current unbalance: reading ± 0.2 |
Here the phase A voltage frequency is used as the total measurement frequency | |
| Monitoring records |
Recordable parameters: Three-phase voltage three-phase current neutral current voltage harmonics (total harmonics 1~25th harmonic) current harmonics (total harmonic 1~25th harmonic) three-phase unbalance active power power factor fluctuation flicker |
Recordable time = (the maximum number of data that can be recorded by the instrument times save time interval)/60 mins=18635*3s/3600s=15.5h Storage interval: 3s-30min~ |
The collection interval is set to 3s which can monitor 15.5 hours and the collection interval is set to 30 min which can monitor 388 days (3s to 30 min continuously adjustable) | |
| Sudden rise and fall | Sudden voltage rise voltage fall and temporary power failure | Up to 40 events can be recorded | ||
| Fluctuation | Voltage fluctuation amount: 0.1%~10.0% | Measurement error £ ±5% | ||
| Flicker |
Short-term flicker Long-term flicker |
Short-time flicker measurement error £ ±5% Long-term flicker measurement error £ ±5% |
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| Digital oscilloscope | Instantaneous waveforms of three-phase voltage three-phase current neutral voltage and neutral current |
Maximum sampling frequency: 200KHz Minimum sampling frequency: 100Hz |
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| Dimension | 290× 110× 55mm | |||
| Display | 5.7 inches touch screen 320x240 color graphic LCD | |||
| Communication interface | USB | |||
| Weight | 1.6kg | |||
| Memory |
128M bit |
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