ND2000E-6H Microcomputer Relay Protection Tester

Product Introduction

        ND2000E-6H Microcomputer Relay Protection Calibrator uses the user-friendly Windows XP operating system with an intuitive human-machine interface and simple, fast operation. For user convenience, a large number of keyboard shortcuts are defined, enabling "one-key" operation. The high-performance embedded industrial control computer and large-screen high-resolution color TFT LCD display provide rich and intuitive information, including the current working status of the device, next-step prompts, and various help information. Equipped with an ultra-thin industrial keyboard and touch mouse, it allows various operations to be performed via keyboard or mouse, just like operating a standard PC. It features an external USB interface for easy data storage and software maintenance. It can complete all test items without the need for additional external devices, automatically displaying and recording test data, and generating vector diagrams and characteristic curves.

       ND2000E-6H Microcomputer Relay Protection Calibrator employs a high-performance D/A converter, producing waveforms with high precision, excellent linearity, and good transient response and amplitude-frequency characteristics. It ensures waveform accuracy and other specifications across the entire measurement range. It can directly output AC voltage, AC current, DC voltage, and DC current, with adjustable amplitude, phase angle, and frequency. The power amplification section uses a new high-power, high-fidelity linear amplifier circuit, providing high output power and low ripple interference. Even at maximum output current, the waveform remains undistorted and unclipped. The input interface automatically adapts to both passive (dry contact) and active signals, and can automatically adjust to the polarity of active inputs, operating normally within an input voltage range of ±250V. It can perform various complex calibration tasks, easily test and scan various protection settings, store test data in real time, display vector diagrams, and print reports. The carefully designed chassis structure is compact, with excellent heat dissipation, light weight, and portability, making it convenient for field testing. The instrument features self-protection functions, a rationally designed heat dissipation structure, reliable and comprehensive multiple protection measures, soft-start power supply, and certain fault self-diagnosis and lockout capabilities.

Product Features

☆、Simultaneously outputs six-phase current and six-phase voltage, capable of completing three-phase differential protection and automatic transfer switch tests.

☆、High-performance industrial control computer, 10.4” large-screen color LCD display, built-in ultra-thin industrial keyboard, pre-installed Windows operating system, can be connected to an external laptop or desktop computer.

☆、Test software can automatically complete differential protection, line protection, reclosing, under-frequency, synchronization, harmonic, automatic transfer switch, oscillation, fault replay, and other tests. Can be connected to GPS for pilot protection tests.

☆、Can store test data in real time, display test graphs, and automatically generate test reports.

☆、Equipped with multiple USB interfaces for easy data storage and software maintenance.

☆、The instrument comes with 110V and 220V DC power supplies to power protection devices.

☆、The instrument has self-protection functions, a rationally designed heat dissipation structure, reliable and comprehensive multiple protection measures, supports output waveform monitoring, fault self-diagnosis, and lockout functions.

Technical Parameters

☆、AC Current Source:
       Six-phase current source with common neutral point, current rise/fall time <100μs
       Output power: 450VA per phase
       Output accuracy: 0.1A～2A accuracy ±5mA
                             2A～10A accuracy ±0.1%
                            10A～40A accuracy ±0.2%
         Resolution: 0.1A～10A resolution 1mA
                      10A～40A resolution 5mA
         Single-phase continuous output time: 0.1A～10A output time unlimited
                                        10A～20A output time ≥60 seconds
                                       20A～30A output time ≥15 seconds
                                       30A～40A output time ≥5 seconds
☆、AC Voltage Source:
      Six-phase voltage source with common neutral point, current rise/fall time <100μs
      Output power: ≥75VA per phase
      Output accuracy: 1V～5V accuracy ±5mV
                          5V～125V accuracy ±0.1%
      Resolution: 1V～5V resolution 1mV
                   5V～125V resolution 5mV
☆、DC Current Source:
       Single-phase output range: -10A～+10A or 0～20A
       Output power: 300VA per phase
       Output accuracy: ±0.1A～±2A accuracy ±10mA
                           ±2A～±10A accuracy ±0.2%
      Resolution: 5mA
☆、DC Voltage Source:
      DC voltage output range: -150V～+150V or 0～300V
      Output power: ≥100VA
      Output accuracy: ±1V～±5V accuracy ±10mV
                          ±5V～±150V accuracy ±0.2%
      Resolution: ±1V～±5V resolution 5mV
                    ±5V～±150V resolution 10mV
☆、AC Voltage and Current Source Phase Angle
      Phase angle range: 0°～360°
      Accuracy: ±0.1°

      Resolution: 0.01°

☆、AC Voltage and Current Source Frequency
      Frequency range: 1～2000Hz
      Output accuracy: 10Hz～65Hz ±0.001Hz
                           65Hz～2000Hz ±0.02Hz
       Resolution: 0.001 Hz

☆、Timing Accuracy: 1mS～1S ±1mS
                       1S～999999S ±0.2%

☆、Input Contacts: 16 independent switch contact inputs, automatically recognizes the polarity of active contacts (compatible with dry contacts and 15V～250V active contacts)

☆、Output Contacts: 8 pairs of programmable switch dry contact outputs (contact capacity: 250VDC, 0.5A or 250VAC, 0.5A)

☆、Synchronization: Voltage and current synchronization ≤10μS

☆、Power Supply: AC input voltage
       Rated value: 220V ± 10%
       Reference value: 220V ± 2%

☆、AC Power Supply Frequency:
       Rated value: 50Hz ± 10%
       Reference value: 50Hz ± 2%

☆、Operating Environmental Conditions
      Ambient temperature: －10℃～+40℃
      Relative humidity: ≤90%
      Atmospheric pressure: 80～110kPa

☆、Chassis Dimensions and Weight
      Chassis dimensions: 420mm×190mm×470mm
      Weight: 25 kilograms