The LDZL-35B power quality harmonic analyzer is designed specifically for detecting waveform distortion, harmonic content, three-phase imbalance, and other power quality issues in the power grid. It has comprehensive functions such as electrical parameter measurement, harmonic analysis, spectrum analysis, waveform display, and vector analysis. By adopting advanced digital signal processing technology and high-performance microprocessors, various power quality indicators in the power grid can be monitored and analyzed in real time and accurately, providing strong guarantees for the safe, stable, and economical operation of the power system.
| Input properties | |
| Voltage measurement range | 0～200V～800V, automatic cutting gear. |
| Current measurement range | Clamp transformers (three types): 5A / 25A (standard); 100A / 500A (optional) ; 400A / 2000A (optional) |
| Phase angle measurement range | 0 ~ 359.999° |
| Frequency measurement range | 45 ~ 55Hz |
| Voltage channels | three-channel (UA、UB、UC) |
| Current channels | three-channel (IA、IB、IC) |
| Maximum harmonic analysis times | 63 times |
| Maximum continuous storage period in 1 minute interval | 18 months |
| Accuracy | |
| Voltage | ± 0.2% |
| Frequency | ± 0.01Hz |
| Current, power | ± 0.5% |
| Phase | ± 0.2 ° |
| Power quality | |
| Fundamental voltage tolerance | ≤0.5% F.S |
| Fundamental current tolerance | ≤1% F.S |
| Phase between fundamental voltage and current measurement error | ≤0.2 ° |
| Percentage of harmonic voltage measurement error | ≤ 0.1% |
| Percentage of harmonic current measurement error | ≤ 0.2% |
| Three phase voltage unbalance error | ≤ 0.2% |
| Voltage deviation error | ≤0.2% |
| Voltage fluctuation error | ≤0.2% |
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 measurement: Using high-precision sensors and advanced measurement technology, it can accurately measure various electrical parameters such as voltage, current, active power, reactive power, phase angle, power factor, frequency, etc., with measurement accuracy of up to ± 0.1% (voltage) and ± 0.5% (current/power), meeting various power quality monitoring standards.
Comprehensive functional coverage: This analyzer not only has basic electrical parameter measurement functions, but also supports advanced functions such as harmonic analysis (up to 63 times), spectrum analysis, voltage fluctuation and flicker analysis, three-phase imbalance measurement, etc. It can comprehensively evaluate the power quality status of the power grid and provide users with detailed power quality analysis reports.
Convenient handheld design: Adopting a handheld design, it is compact in size, lightweight, and easy to carry and operate. Equipped with a large color LCD screen and conductive silicone buttons, the operation interface is user-friendly, intuitive and easy to read.
Powerful data processing capability: Built in large capacity data storage, capable of continuously storing test data for more than 18 months (at 1-minute intervals). Support USB interface data export, making it convenient for users to upload data to the backend management computer for further analysis and management. Meanwhile, equipped with powerful data management software, it can automatically generate professional power quality analysis reports.
Intelligent analysis and alarm: This analyzer has intelligent analysis functions, which can automatically determine power quality problems in the power grid and provide corresponding alarm prompts. Users can set different thresholds according to their needs. When the power grid parameters exceed the set range, the instrument will automatically sound and light an alarm to remind users to take timely measures.
Remote control and communication: WIFI or Bluetooth modules can be optionally selected to achieve remote control of tablets or smartphones, improving testing efficiency. At the same time, it supports RS232/RS485 communication protocol, which facilitates data exchange and remote monitoring with upper computer software.
Safe and reliable design: The instrument casing is made of high-strength materials, which are sturdy and durable. Built in multiple protection mechanisms such as overvoltage, overcurrent, and short circuit ensure the safety and reliability of the testing process. At the same time, it is powered by high-performance lithium-ion rechargeable batteries, which can work continuously for more than 10 hours when fully charged, meeting the needs of long-term monitoring.
