The LDZL-V Power Quality Analyzer is a flat panel high-precision power quality monitoring and analysis device. This analyzer integrates multi-channel measurement, electrical parameter analysis, harmonic monitoring, transient parameter recording, and powerful data processing functions, designed to meet the increasingly high requirements of modern industrial, commercial, and residential users for power quality. By adopting advanced digital signal processing technology and high-speed microprocessors, various power quality indicators in the power grid can be monitored in real time and accurately, providing strong guarantees for the safe and stable operation of the power system.
| Number of measurement channels | Four voltage channels, four current channels | |
| Measuring range | Voltage | 0-900V |
| Current |
Small clamp:diameter 8mm，5A/25A(standard) Medium clamp:diameter 50mm，100A/500A(Optional) Large clamp:diameter 125×50mm，400A/2000A(Optional) | |
| Phase angle | 0.000－359.999° | |
| Frequency | 42.5－69Hz | |
| Measuring step | Voltage | 0.001V |
| Current | 0.0001A | |
| Phase angle | 0.001° | |
| Power | active power 0.01W、reactive power 0.01Var | |
| Frequency | 0.0001Hz | |
| Voltage measurement accuracy | ≤0.1% | |
| Current measurement accuracy | ≤0.3% | |
| Phase angle measurement accuracy | ≤0.1° | |
| Power measurement accuracy | ≤0.5% | |
| Frequency measurement accuracy | ≤0.01Hz | |
| Harmonic analysis times | 2－64 times | |
| Harmonic voltage measurement error |
Harmonic content＞1% Nominal value：≤1% RD Harmonic content＜1% Nominal value：≤0.05%FS | |
| Harmonic current measurement error |
Harmonic content＞3% Nominal value：≤1% RD Harmonic content＜3% Nominal value：≤0.05%FS | |
| Three phase voltage unbalance error | ≤0.2% | |
| Three phase current unbalance error | ≤0.5% | |
| Voltage fluctuation accuracy | 5% | |
| PST measurement time | 10min | |
| PLT measurement time | 2h | |
| PST/PLT measurement error | ≤5% | |
| Screen | 1280×800、True color LCD | |
| Charging Power | AC220V±15% Frequency 45Hz-65Hz | |
| Standby timing | ≥10h | |
| Host Power | ＜4VA | |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
High precision multi-channel measurement: It has the ability to simultaneously measure four channel voltage and four channel current, with a wide measurement range and high resolution, and can accurately capture small fluctuations and changes in the power grid.
Comprehensive electrical parameter analysis: This analyzer can comprehensively measure various electrical parameters such as voltage, current, phase, frequency, active power, reactive power, power factor, etc., and display them intuitively through a large color LCD screen, making it convenient for users to quickly understand the status of the power grid.
Harmonic and interharmonic monitoring: It can monitor the 2-64th harmonic content and 0.5-31.5th interharmonic content in voltage and current in real time, helping users accurately evaluate the impact of harmonics on the power grid and take corresponding control measures.
Transient parameter recording and analysis: This analyzer has the function of recording voltage sudden rise and fall events, which can automatically start waveform recording, record waveform data before and after the event occurs, and provide strong support for fault analysis and processing.
Powerful data processing and report generation: Built in large capacity data storage, supporting long-term continuous recording. Users can export data to a computer through a USB interface, use the accompanying data analysis software for in-depth analysis, and automatically generate professional power quality analysis reports.
Convenient operating interface: adopting a 10 inch large color LCD screen and capacitive touch operation, similar to the operation mode of tablets and smartphones, easy to learn. Simultaneously supporting mouse operation to adapt to operators with different habits.
Flexible configuration and expansion: Optional large clamp meter can be used for measuring the transformation ratio and angle difference of low-voltage current transformers, meeting more testing needs. At the same time, the instrument supports remote upgrades and expansion functions, ensuring that users always have the latest testing technology and features.
