Power Quality Recorder
The MOEORW-WNQ62 is a high-precision portable power quality recorder, focusing on professional monitoring of power grid power quality, with accurate performance and comprehensive functions.
It employs clamp measurement, is portable and easy to operate, allows for simultaneous acquisition and analysis of multiple parameters, and boasts excellent data storage and remote connectivity capabilities.
It is suitable for online monitoring and on-site testing in substations, power plants, industrial and mining enterprises, and other scenarios.
Product Introduction
The MOEORW-WNQ62 portable power quality recorder is designed with an embedded graphics system , a high-speed large-scale FPGA, and a high-performance PowerPC CPU as its core, combined with a high-performance embedded real-time operating system. It is suitable for substations, power plants, and industrial and mining enterprises where uninterrupted online monitoring of harmonics and power quality is required. This device complies with the following main standards:
- GB/T 12325-2008: Permissible Deviations in Power Supply Voltage for Power Quality
- GB/T 12326-2008: Power Quality - Voltage Fluctuations and Flicker
- GB/T 14549-93 Power quality: Public power grid harmonics
- GB/T 15543-2008: Power Quality - Three-Phase Voltage Unbalance
- GB/T 15945-2008: Power Quality - Frequency Deviation of Power Systems
- GB/T 18481-2001: Temporary overvoltages and transient overvoltages in power quality
- GB/T 19862-2005: Power Quality General requirements for monitoring equipment
- GB/T 24337-2009: Power Quality - Inter-grid Harmonics
- GB/T 22386-2008 General Format for Transient Data Exchange in Power Systems (COMTRADE)
- GB 17625.1-2003 Electromagnetic compatibility limits - Harmonic current emission limits (16A per phase input current cluster for equipment)
- DL/T 500-2009: Technical Conditions for the Use of Voltage Monitoring Instruments
- DL/T 1028-2006: Verification Procedure for Power Quality Testers and Analyzers
- IEC 61000-4-30: Testing and measurement techniques-Power quality measurement methods
- IEC 61000-4-7: Part 4-7: Testing and measurement techniques-general guide on harmonics and interharmonics measurements and instrumentation
- IEC 61000-4-15: Part 4: Testing and measurement techniques-section 15: flickermeter-functional and design specifications
- IEEE 1159.3-2003: IEEE Recommended Practice for the Transfer of Power Quality Data
Product Parameter (specification)
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Voltage acquisition interface |
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range |
0~180V/500V (customizable) |
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Number of channels |
Four groups of 16 channels (Ua, Ub, Uc, Un ) AC voltage (PT) channels 180V (RMS): 8 channels AC voltage (PT) channels 500V (RMS): 8 channels |
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accuracy |
±0.1% |
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Harmonic number |
63 times |
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Current acquisition interface |
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range |
0A~200A (customizable) |
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Number of channels |
Four groups of 1-6 channels (Ia, Ib, Ic, In ) AC current (clamp-on transformer) channel 20A (RMS): 4 channels AC current (clamp-on transformer) channel 200A (RMS): 4 channels AC current transformer (CT) channel 180A (RMS): 8 channels |
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accuracy |
±0.1% |
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Harmonic number |
63 times |
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phase |
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scope |
0~360° |
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Accuracy |
±0.2° |
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frequency |
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scope |
40 ~ 66 Hz |
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Accuracy |
<±0.01Hz |
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Measurement error in power quality section |
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Basic voltage |
≤0.1 % Un |
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Basic Current |
≤ 0.1 % In |
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Voltage and current phase difference |
≤ ±0.2° |
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Harmonic voltage content |
≤0.1% |
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Harmonic current content |
≤0.2% |
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Interharmonic measurement |
Uh ≥1 %U N : Not exceeding ± 5 % Uh U h <1% U N : no more than ±0.05% U N I h ≥3%I N : Not exceeding ± 5 %I h I h <3%I N : no more than ±0.15%I N |
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Unbalance measurement |
Voltage imbalance: ±0.15%, Current imbalance: ± 0.2 % |
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flicker measurement |
± 5% |
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Three-phase imbalance |
≤0.2% |
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Voltage deviation |
≤0.2% |
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voltage fluctuation |
≤0.2% |
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digital input |
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quantity |
20 passive nodes , 10 passive nodes (24V ), and 10 active nodes (DC110V -220V ). |
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Switch output |
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quantity |
Two circuits ( one for power failure alarm, the other as backup ) |
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synchronous |
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Interface type |
IRIG-B/PPS optical signal, electronic B code |
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quantity |
One optical and one electronic component ( absolute timekeeping accuracy: ±1 ms, clockkeeping accuracy: ±1 s/24 h) |
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Wired connection |
|
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Interface type |
100Mbps LAN port, RJ45 |
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quantity |
1 |
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Power supply |
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Power supply voltage |
AC 220V , permissible deviation: -20%~15% |
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power supply frequency |
47~65 Hz |
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USB port |
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quantity |
3 |
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Working environment conditions |
|
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Operating temperature |
-10℃~50℃ |
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humidity |
≤95%, no condensation |
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other |
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weight |
13 kg |
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size |
376mm×201mm×364mm (Length x Width x Height) |
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Display screen |
9.7-inch true color LCD display |
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Anti-interference capability |
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Electrostatic discharge immunity: Level III |
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Electrical Fast Transient/Bulk Immunity: Class B |
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Impulse group immunity: Level III |
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Surge immunity: Level III |
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Power frequency immunity: Class A |
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Power frequency magnetic field immunity: Class III |
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Pulse magnetic field immunity: Level IIII |
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Damped oscillating magnetic field immunity: Level IIII |
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Product features and applications
- This portable power quality recorder is a high-precision power monitoring device specifically designed to detect power quality problems in the power grid, such as waveform distortion, harmonic content, voltage fluctuations and flicker, and three-phase imbalance; it also has the functions of electrical parameter testing and vector analysis.
- parameters such as voltage, current, active power, reactive power, phase angle, power factor, and frequency ;
- It can display vector diagrams of the measured voltage and current, allowing users to analyze the vector diagrams to determine whether the wiring of the metering equipment is correct .
- Measurements are performed using clamp-on current transformers. The advantage is that operators do not need to disconnect the current circuit during measurement, allowing for convenient and safe operation. Furthermore, clamp-on meters with different ranges can be selected to suit different user measurement needs .
- It can measure and analyze the quality of AC power supplied from the public power grid to the user end, including: frequency deviation, voltage deviation, voltage fluctuation, flicker, permissible three-phase voltage imbalance, and grid harmonics .
- It can display single-phase voltage and current waveforms and can simultaneously display four- phase voltage and current waveforms ;
- Load fluctuation monitoring: Measure and analyze the fluctuations in power quality of the public power grid caused by various electrical equipment under different operating conditions , and record and store the changing trends of power parameters such as voltage, current, active power, reactive power, apparent power, frequency, and phase at regular intervals ;
- Dynamic monitoring of power equipment adjustment and operation helps users solve problems that arise during the adjustment and commissioning of power equipment .
- It can test and analyze the dynamic parameters of reactive power compensation and filtering devices in power systems and make quantitative evaluations of their functions and technical indicators ;
- Different storage intervals can be set to continuously store data at the set time intervals ;
- Power quality data supports storage in PQDIF file format, and the file retention time is no less than 60 days. PQDIF files can record voltage time waveform curves and RMS value change curves.
- The device has a USB interface, which makes it easy to copy data directly to the back-end management computer ;
- When used with powerful data management software, real-time sampling data can be directly uploaded to the back-end management computer for more comprehensive and rapid processing in the background .
- It can save test data and results while conducting on-site testing, and realize computerized data management through back-end management software, with powerful reporting functions ;
- It uses a large-screen imported color LCD as the display, and the human-computer interaction interface is user-friendly .
- Conductive silicone buttons offer a good feel, long lifespan, reasonable design, and easy operation .
- Small in size and light in weight, it is easy to carry and can be used for on-site measurement as well as as a standard measuring device in the laboratory .
Prodection details
Continuous online monitoring of power quality in substations and power plants
Troubleshooting Harmonics and Voltage Fluctuations in Power Systems of Industrial and Mining Enterprises
Dynamic monitoring and parameter testing of power equipment commissioning/adjustment and compensation filter devices.
Portable Measurement and Laboratory Standard Metrology of On-Site Power Parameters
Monitoring and Analysis of Load Fluctuations of Electrical Equipment and Their Impact on the Power Grid
Company Qualifications
Q: Are you a factory or a trading company?
We are a professional manufacturer of testing equipment.
Q: How is the after-sales service?
A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.
Q: How is the after-sales service?
A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.
Q: What about transportation?
A: It depends on your requirements. We can ship to your airport by air, to your seaport by sea, or to your office by courier.
We also accept cooperation with your shipping agent.
Q: Are your keyboard, interface, software, and manuals in English?
A: Yes, if you are using the English version of the keyboard, interface, software, and manual and require other languages, please contact us for confirmation.
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