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1.Product introduction of power quality tester
Power quality tester is also known as handheld power quality analyzer and power power tester. Power quality tester is a portable product that monitors and analyzes the quality of power grid operation. It can provide harmonic analysis and power quality analysis in power operation. Handheld power quality tester, it can record and analyze all power quality parameters such as harmonics, voltage, current, frequency, fluctuation, flicker, power and three-phase imbalance on site. It also has power transient monitoring, wave recording analysis, Advanced measurement functions such as energy efficiency loss assessment and inverter measurement. The measurement results are provided with free host computer analysis software for secondary analysis, providing accurate data basis for power grid power quality management.
2. Core technical indicators of power quality tester
Flicker accuracy: ±5%
Voltage accuracy: 0.1%
Frequency: 50Hz/60Hz
Measurement cycle: 10/12 cycles
Frequency width: 42.5-69Hz
Voltage imbalance: ±0.2%
Current imbalance: ±0.5%
Maximum sampling frequency: 200kHz
Current accuracy: 0.1%+CT accuracy
Power factor accuracy: 0.5%+CT accuracy
Voltage test range: 0-1000V, instantaneous 6000V
Data storage: 8G
Working time: ≥5h
IP rating: IP53
Support manual/automatic wave recording
Recording time: 10s-10min
Recording period: 10/12 periods
Minimum recording time interval: 0.2s
USB transfer speed: ≥17M/S
Harmonic measurement: 50th/50Hz-2500Hz
Recording sampling points: 128/256/512 points/period
Safety level: 600V CAT IV/1000V CAT III
Chinese and English interface settings
Support multiple transformer brands
Inverter measurement: single phase/three phase
Energy Loss Analysis: Monetary Statistics
Free professional PC analysis software
Transient monitoring: capture the shortest 50us waveform
Comply with IEC61000-4-7 harmonic measurement standard
Comply with IEEE 1459, DIN 40110 algorithm
Comply with IEC61000-4-15 flicker measurement standard
Interharmonic measurement: 50th/25Hz-2475Hz
Higher harmonics: 35th/2100Hz-8900Hz
3. Advanced measurement functions of power quality tester
1. Wave recording analysis
Supports 1-10min wave recording function, supports custom sampling points to record original waveforms, and PC professional host computer analysis software to secondary analyze waveforms to more effectively analyze the causes of power grid failures.
2. Parameter statistics
Comprehensive recording and data analysis of power quality parameters. The minimum recording interval is 0.2s, and the recorded data can be used for secondary analysis by the host computer software, and customized or national standard reports can be generated.
3. Transient monitoring
200kHz high-speed fixed-frequency sampling can capture the shortest 50us waveform instantaneous pulse, capture rapidly changing waveform data, and supports lossless recording of transient events.
4.Energy efficiency loss assessment
It supports power decomposition, detailed statistics of power loss caused by various types of parameters, supports pollution assessment, and intuitively displays the economic losses caused by energy loss in the form of currency.
5.Inverter measurement
It can perform electrical parameter analysis on single-phase/three-phase inverters, and analyze and record parameters such as DC input, AC output, and conversion efficiency of the inverter.
6.Oscilloscope
Displays 4-channel voltage and current waveforms, supports horizontal and vertical scaling, intuitively displays waveform distortion, and understands the impact of high-order harmonics on signals.
4. Features of power quality tester
1.Multi-regional standards
50Hz/60Hz power grid power frequency system measurement, Chinese and English language settings, customized multi-national phase sequence color standards and calculation methods to meet different user needs.
High precision, wide frequency band, wide range
The measurement accuracy complies with IEC 61000-4-30 Class A standard, IEC61000-4-7 harmonic measurement, and IEC61000-4-15 flicker measurement. The maximum instantaneous voltage can be measured up to 6000V, and the maximum frequency of high-order harmonics can reach 9kHz.
2.Setup Wizard
Guide users to set parameters to meet basic measurement settings and solve the confusion of new users not knowing how to set parameters. Visual guidance is simple and convenient.
3. Wiring verification
The original wiring verification function guides users to connect correctly, prevents invalid records caused by wiring errors, and provides effective prompts for wiring errors.
4.Compatibility design
Supports multiple brands of current transformers in the industry.
5.IP53 level structure
It has 1.5m anti-fall protection capability and a protection level of up to IP53.
6. Data analysis software PQViewer
Power quality data analysis software (PQViewer) is a data analysis software supporting the power quality analyzer.
PQViewer can read the power quality data files collected and recorded by the analyzer, provide data analysis functions and data statistics functions, and can export measurement data and export reports that comply with international standards, helping to quickly and accurately locate power quality problems. Data analysis function
Statistical data analysis displays the statistical results of voltage, current, power, frequency, harmonics and other data in the form of trend graphs, and all power data status changes are at a glance;
Harmonic analysis displays the statistical results of harmonic data with histograms and trend charts, from detailed harmonic data to macroscopic results, all under control;
Event data analysis (transient events and steady-state alarm events), reports the time, type and detailed data of the event, and can perform single-channel analysis and multi-channel comparative analysis of the power quality status at the time of the event;
Reports that comply with national standards can be generated through simple operations
7. Data export and reporting
Export report content, which can quickly output Excel format reports, trend charts, harmonic spectrum histograms and ITIC curves, which are widely used in secondary analysis of measurement data and are more efficient; Word format reports are also provided, and table data and pictures can be viewed at the same time. Rich content, save time.
Export the original data and export the recorded original data as a csv file, which facilitates secondary data processing and analysis, and the results are accurate; the operation is simple and the export can be completed in two steps.
5. General parameters of power quality tester
parameter | Parameter Type | describe | |
mechanical | Dimensions (mm) | 263×168×65 | |
weight | about 2kg | ||
environment | working environment | 0℃~+45℃, humidity below 90rh% | |
Storage environment | -20℃~+50℃, humidity below 95rh% (non-condensing) | ||
storage | type | TF card (built-in) | SD card (external) |
capacity | 8GB | 8G (maximum support 128G) | |
power supply | adapter input | 110V-240V, 50Hz | |
adapter output | 15V, 3A | ||
Battery | type | Rechargeable polymer lithium-ion battery, 5000mAh | |
Battery working time | ≥5h | ||
Battery charging time | Minimum 5h (ambient temperature 25℃) | ||
Power saving function | LCD backlight brightness is adjustable and standby time is adjustable | ||
show | size | 112.8×84.6mm | |
color | 260,000 colors | ||
resolution | 640×480 |
6. Measurement parameters of power quality tester
Function | Parameter Type | describe |
Recorder | Oscilloscope | Real-time waveforms of voltage and current of each phase A, B, C and N |
Voltage current frequency | Frequency value, voltage effective value, voltage half-wave effective value, voltage positive peak value, voltage negative peak value, voltage form factor, current effective value, current half-wave effective value, current positive peak value, current negative peak value, current waveform factor | |
Power and battery | Active power, reactive power, apparent power, power factor, displacement power factor, active electrical energy, reactive electrical energy, apparent power electrical energy | |
Voltage harmonics | THD, DC, 1-50 harmonics, 0-49 inter-harmonics, 1-35 higher harmonics | |
Current harmonics | THD, DC, KF, 1-50th harmonic, 0-49th harmonic, 1-35th harmonic | |
Harmonic power | THD, DC, 1-50th harmonic power | |
Flicker | PST (short flicker), PLT (long flicker) | |
unbalanced | Positive sequence voltage, positive sequence current, negative sequence voltage, negative sequence current, zero sequence voltage, zero sequence current, unbalance | |
energy loss | Active power, reactive power, apparent power decomposition, line loss power, line loss cost, pollution assessment | |
demand | demand | |
record | Voltage swell, voltage sag, voltage interruption, surge current, short flicker limit violation, long flicker limit violation, upper voltage limit violation, lower voltage limit violation, upper frequency limit violation, lower frequency limit violation, steady-state voltage fluctuation, voltage imbalance Over-limit, voltage THD over-limit, voltage 1-50th harmonic over-limit, current 2-50 harmonic over-limit | |
inverter | DC | DC voltage, DC current, DC power, ripple voltage, ripple voltage content rate |
comminicate | Frequency, voltage effective value, current effective value, total apparent power, total active power, total power factor, fundamental power, fundamental power factor | |
efficiency | Conversion efficiency | |
Transient | Voltage | Voltage effective value, voltage half-wave effective value, voltage positive peak value, voltage negative peak value |
current | Current effective value, current half-wave effective value, current positive peak value, current negative peak value | |
frequency | frequency | |
record | Voltage swell, voltage sag, voltage interruption | |
monitor | monitor | Voltage effective value, 1-50 voltage harmonics, PLT, voltage sag, voltage swell, voltage interruption, steady-state voltage change, voltage imbalance |