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YDQ-2 AC High Voltage Acoustic Optic Tester
It can display single-phase voltage and current waveforms and simultaneously display three-phase voltage and current waveforms. The current is measure
Product details
Product IntroductionProduct Introduction
Power quality refers to the quality of AC electricity supplied to users through the public power grid, and in layman's terms, it refers to the quality of electricity in the power grid lines. The power quality issues are mainly caused by the terminal load side. For example, impulsive reactive loads can cause severe voltage fluctuations in the power grid, reducing the quality of power supply.
With the development of power electronics technology, it has brought positive aspects of energy conservation and energy conversion to modern industry. At the same time, the widespread application of power electronic devices in various industries has also caused new and more serious damage to power quality, and has become the main source of harmonic pollution in the power grid.
The use of rectifiers, variable frequency speed regulation devices, electric arc furnaces, electrified railways, and various power electronic equipment in the distribution network of various user terminals in the power grid system is constantly increasing. Causing impact on the electricity network or electricity pollution. Causing voltage instability, overvoltage, harmonic generation, etc. Harmonics reduce the efficiency of the production, transmission, and utilization of electrical energy, causing electrical equipment to overheat, generate vibration and noise, and lead to insulation aging, shortened lifespan, and even failure or burnout. Harmonics can also cause local parallel resonance or series resonance in the power system, amplifying the harmonic content and causing equipment such as capacitors to burn out.
The nonlinear, impulsive, and unbalanced electrical characteristics of these loads cause serious pollution to the quality of power supply. Therefore, eliminating high-order harmonic problems in the power supply and distribution system has a very positive significance for improving power quality and ensuring the safe, stable, and economical operation of the power system.
On the other hand, modern industrial, commercial, and residential users' electrical equipment is more sensitive to power quality and has higher requirements for power supply quality. At present, harmonics, electromagnetic interference, and power factor reduction have been listed as the three major public hazards in the power system.
When the power quality of the power grid is disrupted or polluted, and cannot meet the relevant national standards, targeted improvement of the power quality of the power grid is necessary. To understand the actual situation of power quality in the power grid, it is necessary to have corresponding equipment for testing and analysis. Based on the actual situation in China, our company has timely developed professional power quality analysis instruments that are suitable for the national conditions. Below is a detailed explanation of the specific performance, parameters, and usage methods of the power quality analyzer.
Product Name: Electric Energy Meter Calibration Device, Electric Energy Meter On site Calibration Device, Three phase Electric Energy Meter On site Calibration Device, Electric Energy Performance Calibration Device, Three phase Electric Energy Meter Calibration Device
Product parametersProduct Parameters
Technical Parameter
| Input characteristics | Voltage measurement range: 20V~200V~800V, automatic gear switching | |
| Current measurement range: clamp type transformers (three types): 5A/25A (standard); 100A/500A (optional); 400A/2000A (optional) | ||
| Phase angle measurement range: 0-359.99 ° | ||
| Frequency measurement range: 45-65Hz | ||
| Number of voltage channels: Three channels (UA, UB, UC) | ||
| Number of current channels: Three channels (IA, IB, IC) | ||
| Maximum harmonic analysis frequency: 63 times | ||
| Maximum continuous storage period with a 1-minute interval: 18 months | ||
| accuracy | Electrical parameter measurement section | Voltage: ± 0.2% |
| Frequency: ± 0.01Hz | ||
| Current and power: ± 0.5% | ||
| Phase: ± 0.2 ° | ||
| Power quality section | The allowable error of fundamental voltage is ≤ 0.5% F.S | |
| Allowable error of fundamental current: ≤ 1% F.S | ||
| Measurement error of phase difference between fundamental voltage and current: ≤ 0.2 ° | ||
| Measurement error of harmonic voltage content: ≤ 0.1% | ||
| Measurement error of harmonic current content: ≤ 0.2% | ||
| Three phase voltage imbalance error: ≤ 0.2% | ||
| Voltage deviation error: ≤ 0.2% | ||
| Voltage variation error: ≤ 0.2% | ||
| operation temperature | －10℃～ +40℃ | |
| Charging power supply | AC220V、 Frequency: 45Hz~55Hz | |
| Host power consumption | ≤3VA | |
| Maximum working time of battery | ≤ 10 hours | |
| isolation | The insulation resistance between the voltage and current input terminals and the casing is ≤ 100M Ω | |
| The working power input terminal is subjected to a power frequency of 1.5kV (effective value) between the shell and the working power input terminal, and the experiment lasts for 1 minute | ||
| volume | 320mm × 240mm × 130mm | |
| weight | 2.0kg | |
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
- 1. The instrument is a high-precision testing device specifically designed to detect power quality issues such as waveform distortion, harmonic content, and three-phase imbalance in the power grid; It also has the functions of electrical parameter testing and vector analysis.
- 2. It can accurately measure various electrical parameters such as voltage, current, active power, reactive power, phase angle, power factor, frequency, etc.
- 3. It can display the vector diagram of the measured voltage and current, and users can analyze the vector diagram to determine the correctness of the wiring of the measuring equipment.
- 4. The current is measured using a clamp type transformer. Because when using a clamp type current transformer for measurement, the operator does not need to disconnect the current circuit, making the measurement convenient and safe. According to the different measurement ranges of users, clamp gauges with different ranges can be selected.
- 5. It can measure and analyze the quality of AC power supplied by the public power grid to the user end, including frequency deviation, voltage deviation, allowable three-phase voltage imbalance, and grid harmonics.
- 6. It can display single-phase voltage and current waveforms and simultaneously display three-phase voltage and current waveforms.
- 7. All test interfaces have a screen lock function to facilitate user reading and data analysis.
- 8. Load fluctuation monitoring: measuring and analyzing the fluctuations caused by various electrical equipment in different operating states on the power quality of the public grid. Regularly record and store the changing trends of power parameters such as voltage, current, active power, reactive power, apparent power, frequency, phase, etc.
- 9. Dynamic monitoring of power equipment adjustment and operation process, helping users solve problems that arise during the adjustment and operation of power equipment.
- 10. Be able to test and analyze the dynamic parameters of reactive power compensation and filtering devices in the power system, and make quantitative evaluations of their functions and technical indicators.
- 11. Different storage intervals can be set to continuously store data according to the set time intervals.
- 12. Built in large capacity data storage, capable of continuous storage for over 18 months at 1-minute intervals, meeting the needs of long-term monitoring and testing points.
- 13. The instrument has a USB interface, which allows for easy copying of data directly to the backend management computer.
- 14. In conjunction with powerful data management software, real-time sampling data can be directly uploaded to the backend management computer for more comprehensive and rapid processing.
- 15. Equipped with perpetual calendar and clock functions, real-time display of date and time. At the same time as on-site testing, test data and results can be saved and uploaded to the computer through a serial port. The data can be managed by a microcomputer through backend management software (optional accessories), which has powerful reporting functions.
- 16. Adopting a large imported color LCD screen as the display, the Chinese operation interface is equipped with Chinese character prompt information and a multi parameter display LCD display interface, making the human-machine dialogue interface friendly.
- 17. After 3 minutes of inactivity, the LCD display automatically enters power-saving mode to maximize battery life.
- 18. Conductive silicone buttons have good tactile feel, long lifespan, reasonable design, and easy operation.
- 19. Equipped with a large capacity and high-performance lithium-ion rechargeable battery, it can work continuously for more than 10 hours when fully charged.
- 20. Small in size, light in weight, easy to carry, can be used for on-site measurement, and can also be used as standard measuring equipment in laboratories.
Product videoProduct Video
Product AtlasProduct Picture
Product Attachment Diagram
Instrument host
Photoelectric sampler
Manual switch
Clamp type transformer (5A/25A)
Voltage testing line
Current testing line
Pulse meter test line
power line
232 communication line
Communication management software CD
10mm fish clip
4mm plug
Instruction manual, inspection certificate, certificate of conformity
Product detail diagram
complete set
host
Host screen
Host button area
Host socket
Attachment packing
Clamp type transformer clamp
Local photoelectric sampler
product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.
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