Advanced Three-Phase Power Quality Analysis: ZXDN-3561 Portable Analyzer

Introduction

Power quality analysis is essential for maintaining the reliability and efficiency of electrical systems. The ZXDN-3561 Portable Three-Phase Power Quality Analyzer is a sophisticated tool designed for comprehensive assessment of grid performance. This article provides a technical overview of the ZXDN-3561, highlighting its key features, performance metrics, and comparative advantages for field engineers and technicians.

Overview of the ZXDN-3561

The ZXDN-3561 is a versatile, portable analyzer capable of measuring and recording critical power quality parameters. It supports long-term data acquisition, harmonic analysis, and transient event detection, making it suitable for both routine maintenance and detailed power system diagnostics.

Key Features and Technical Capabilities

1. Voltage, Current, and Frequency Measurement

Measures three-phase voltage, neutral voltage, three-phase current, neutral current, and frequency.

Accuracy: Voltage ±0.1% rdg ±0.05% f.s; Current ±0.2% rdg ±0.05% f.s; Frequency ±0.01 Hz.

Displays RMS, peak values, crest factors, waveforms, and trends.

2. Harmonic and Interharmonic Analysis

Measures up to the 50th harmonic for voltage and current.

Calculates THD, harmonic RMS values, and harmonic ratios.

Interharmonic analysis for 0.1–19.9th order with RMS and ratio outputs.

Displays spectral bar charts and trend graphs.

3. Power and Energy Measurement

Measures apparent, active, and reactive power; power factor; and energy accumulation.

Accuracy: ±0.5% for power parameters.

4. Three-Phase Unbalance

Measures voltage and current unbalance, sequence components (positive, negative, zero), and phase angles.

Accuracy: Unbalance ±0.2%; phase angle ±0.3°.

5. Transient and Event Recording

Detects and records voltage swells/sags, interruptions (40 events), inrush currents (40 events), and transients (20 events with ≥20 μs duration).

Time accuracy: ±10 ms.

6. Flicker and Fluctuation

Measures short-term (Pst) and long-term (Plt) flicker, and voltage fluctuations.

7. Data Logging and Connectivity

Built-in 128 Mbit Flash memory; USB interface for external storage.

Configurable recording interval: 3 seconds to 30 minutes.

PC software support for data analysis and reporting.

8. Additional Functions

Digital oscilloscope for waveform visualization.

Power wave analysis for rapid power changes (1–5 min intervals).

Harmonic power analysis (2nd–30th order).

Comparative Advantages

Compared to conventional power quality analyzers, the ZXDN-3561 offers:

1.Higher Accuracy: Precision metrics for voltage, current, and harmonics exceed typical industrial standards.

2.Broband Measurement Range: Supports voltages up to 1000 V RMS and currents up to 6000 A (with appropriate sensors).

3.Comprehensive Event Capture: Capable of recording multiple event types (sags, swells, transients, inrush) with high time resolution.

4.User-Friendly Interface: 5.7-inch color touchscreen with intuitive navigation and graphical displays.

5.Portability and Autonomy: Rechargeable battery provides 5–6 hours of operation, ideal for field use.

Technical Specifications Summary

Conclusion

The ZXDN-3561 Portable Three-Phase Power Quality Analyzer is a robust and precise instrument for diagnosing and monitoring electrical systems. Its combination of high accuracy, extensive functionality, and portability makes it an ideal choice for technicians and engineers involved in power quality management. Whether for compliance testing, troubleshooting, or long-term trend analysis, the ZXDN-3561 delivers performance that meets the demands of modern power networks.

For technical training and operational guidance, users are encouraged to refer to the detailed user manual and accompanying PC software tutorials.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/