ND3561 Power Quality Analyzer

Product Introduction

☆ The instrument is a high-precision testing device specifically designed to detect power quality issues in the grid, such as waveform distortion, harmonic content, and three-phase imbalance; it also features electrical parameter testing and vector analysis capabilities.

☆ Accurately measures various electrical parameters including voltage, current, active power, reactive power, phase angle, power factor, frequency, etc.
☆ Displays the vector diagram of the measured voltage and current, allowing users to determine the correctness of metering equipment wiring through vector analysis.
☆ Current is measured using clamp-type current transformers. This method allows operators to perform measurements conveniently and safely without disconnecting the current circuit. Different clamp meter ranges are available depending on the user's measurement requirements.
☆ Measures and analyzes the AC power quality delivered from the public grid to the user end, including frequency deviation, voltage deviation, three-phase voltage unbalance tolerance, and grid harmonics.
☆ Displays single-phase voltage and current waveforms, and can simultaneously display three-phase voltage and current waveforms.
☆ All test interfaces feature a screen lock function for convenient reading and data analysis.
☆ Load fluctuation monitoring: Measures and analyzes fluctuations in power quality caused by various electrical equipment under different operating conditions. Records and stores trends of electrical parameters such as voltage, current, active power, reactive power, apparent power, frequency, and phase at set intervals.
☆ Dynamic monitoring of power equipment adjustment and operation processes, assisting users in resolving issues during equipment adjustment and commissioning.
☆ Capable of testing and analyzing dynamic parameters of reactive compensation and filtering devices in power systems, and providing quantitative evaluation of their functionality and technical indicators.

Product Features

☆ Allows setting different storage intervals to continuously record data at specified time intervals;
☆ Equipped with a large-capacity internal data storage, capable of continuously storing data for over 18 months at 1-minute intervals, meeting the needs of long-term monitoring at test points.
☆ Features a USB interface for easy data transfer to a backend management computer.
☆ Works with powerful data management software to directly upload real-time sampling data to the backend management computer for comprehensive and rapid processing.
☆ Includes a perpetual calendar and clock function, displaying the date and time in real time. Enables on-site testing while saving test data and results, which can be uploaded to a computer via a serial port. Supports computerized data management through backend software (optional) and offers robust reporting capabilities.
☆ Uses a large-screen imported color LCD as the display, with a Chinese operating interface and Chinese prompt messages. The multi-parameter display interface ensures user-friendly interaction.
☆ Automatically enters power-saving mode after 3 minutes of inactivity to extend battery life.
☆ Features conductive silicone rubber keys with excellent tactile feedback, long lifespan, rational design, and ease of operation.
☆ Equipped with a high-capacity, high-performance lithium-ion rechargeable battery, providing over 10 hours of continuous operation on a full charge.
☆ Compact and lightweight, making it portable for both on-site measurements and use as a standard metering device in laboratories.

Technical Parameters

☆ Input Characteristics

      Voltage Measurement Range: 20～200V～800V, auto-ranging.

      Current Measurement Range

      Clamp-Type Current 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).

      Harmonic Analysis Order: Up to 63rd order.

      Maximum Continuous Storage Period at 1-Minute Intervals: 18 months.

☆ Accuracy

      Electrical Parameter Measurement Section:

      Voltage: ±0.2%

      Frequency: ±0.01Hz

      Current, Power: ±0.5%

      Phase: ±0.2°

      Power Quality Section:

      Fundamental Voltage Allowable Error ≤0.5％F.S.

      Fundamental Current Allowable Error: ≤1％F.S.

      Measurement Error of Phase Difference Between Fundamental Voltage and Current: ≤0.2°

      Harmonic Voltage Content Measurement Error: ≤0.1％

      Harmonic Current Content Measurement Error: ≤0.2％

      Three-Phase Voltage Unbalance Error: ≤0.2％

      Voltage Deviation Error: ≤0.2％

      Voltage Variation Error: ≤0.2％

☆ Operating Temperature: －10℃~ +40℃

☆ Charging Power Supply: AC220V, Frequency 45Hz-55Hz

☆ Host Power Consumption: ≤3VA

☆ Battery Operating Time: ≤10 hours

☆ Insulation:

      Insulation Resistance Between Voltage/Current Input Terminals and Chassis ≥100MΩ.

      Withstands 1.5KV (RMS) power frequency voltage between the power supply input terminal and chassis for 1 minute.

☆ Dimensions: 320mm×240mm×130mm

☆ Weight: 2.0Kg