| Customization: | Available |
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| After-sales Service: | Online |
| Warranty: | 1 Year |
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Automatic secondary voltage drop secondary load tester/Current transformer secondary circuit load tester
summarize
The excessive comprehensive error of electric energy measurement is a key problem in electric energy measurement. The measurement error caused by the secondary circuit voltage drop of voltage transformer is often the factor that affects the comprehensive error of electric energy measurement. The so-called error caused by the secondary voltage drop of the voltage transformer refers to the percentage of the amplitude difference of the voltage between the secondary terminal and the load terminal relative to the secondary actual voltage, and the phase difference between the two voltages.
Secondary voltage drop/load tester is an intelligent instrument designed and developed by our company to automatically test secondary voltage drop/load of voltage transformer by absorbing the advantages of similar products at home and abroad.
The instrument has the advantages of small size, light weight, high measurement accuracy, good stability, simple operation and easy to learn, simple wiring, convenient testing and recording, and greatly improves the work efficiency. It uses the large-screen LCD in the form of true color picture as the display window, the menu operation in the form of picture and the Chinese character prompt, the display interface of multi-parameters in one screen, the human-machine dialogue interface is friendly, easy to use, fast, is the preferred product for all levels of power users.
Automatic secondary voltage drop secondary load tester/Current transformer secondary circuit load tester
Functional characteristics
1. The instrument is a high-precision testing instrument specially used to detect power quality problems such as waveform distortion, harmonic content and three-phase imbalance in the power grid; At the same time, it also has the function of electrical parameter testing and vector analysis.
2. Can accurately measure voltage, current, active power, reactive power, phase Angle, power factor, frequency and other electrical parameters.
3. The vector diagram of measured voltage and current can be displayed, and the user can get the correct connection of the metering equipment by analyzing the vector diagram.
4. The current is measured by the 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. Can display single-phase voltage and current waveform and can display three-phase voltage and current waveform at the same time.
7. The test interface has screen lock function to facilitate the user to read and analyze the data.
8. Load fluctuation monitoring: Measure and analyze the fluctuations caused by various electrical equipment in different operating states to the power quality of the public grid. Periodically record and store the trend of voltage, current, active power, reactive power, apparent power, frequency, phase and other power parameters.
9. Record the active and reactive electric energy consumed at the test point.
10. Dynamic monitoring of power equipment adjustment and operation process to help users solve problems in the process of power equipment adjustment and operation.
11. Be able to test and analyze dynamic parameters of reactive power compensation and filter devices in power systems and make quantitative evaluation of their functions and technical indicators.
12. You can set different storage intervals to store data continuously.
13. The built-in large-capacity data memory 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.
14. The instrument has a USB interface, which can easily copy the data directly to the background management computer.
15. With the data management software, real-time sampling data can be directly uploaded to the background management computer for faster processing in the background.
16. With perpetual calendar, clock function, real-time display date and time. It can save the test data and results at the same time in the field test, and upload it to the computer through the U disk, and realize the microcomputerized data management through the background management software (optional accessories), and have the report function.
17. Optional WIFI(Bluetooth) module, remote control of the instrument with a tablet computer.
18. Using large screen imported color LCD as a display, Chinese operation interface and Chinese prompt information, multi-parameter display LCD interface, human-computer dialogue interface friendly.
19.3 minutes No operation The LCD automatically enters the power saving mode to extend the battery working time.
20. Conductive silicone button, feel good, long life, reasonable design, easy operation.
21. Built-in large-capacity, high-performance lithium-ion rechargeable battery, fully charged continuous work for more than 10 hours.
22. Small size, light weight, easy to carry, can be used for field measurement use, can also be used as a standard laboratory measuring equipment.
Automatic secondary voltage drop secondary load tester/Current transformer secondary circuit load tester
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Enter features |
Voltage measurement range: 20 ~ 200V ~ 800V, automatic cutting. Current measuring range Clamp transformer (three kinds) : 5A/25A (standard) 100A/500A (optional) 400A/2000A (optional) 1000A/5000A (optional) Flexible coil Phase Angle measurement range: 0~359.99°.
Frequency measurement range: 45~65Hz. Number of voltage channels: three (UA, UB, UC). Number of current channels: three (IA, IB, IC). Maximum harmonic analysis times: 63 times. 1-minute interval Maximum continuous storage period: 18 months. |
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Accuracy |
Electrical parameter measurement part: Voltage: ±0.2% Frequency: ±0.01Hz Current, power: ±0.5% Phase: ±0.2° Power Quality part: Allowable error of fundamental voltage ≤ 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 unbalance error: ≤ 0.2% Voltage deviation error: ≤ 0.2% Voltage variation error: ≤ 0.2% |
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Working temperature |
-10ºC~ +40ºC |
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Charging power supply |
AC220V, frequency 45Hz-55Hz |
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Host power consumption |
≤3VA |
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Maximum working time of the battery |
≤10 hours |
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Insulation |
1) The insulation resistance of the voltage and current input end to the housing is ≥100MΩ. 2) The working power supply input side is subjected to 1.5KV (effective value) between the shell, which lasts 1 minute experiment. |
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Volume |
320mm×240mm×130mm |
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Weight |
2.0Kg |
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