ZDKJ-3300 Three-Phase Microcomputer Relay Protection Tester

I. Main Product Features
      1. Standard 4-phase voltage and 3-phase current output: Equipped with 4-phase voltage and 3-phase current output, it facilitates various combinations for conducting different types of protection tests. Each phase voltage can output 120V, and the three-phase combined current can output 120A. The fourth phase voltage Ux is a multifunctional voltage item, which can be set to output 3U0, synchronism check voltage, or any specified voltage value.
      2. Convenient standalone operation: The standalone unit is operated via a large LCD screen with a flexible rotary mouse, featuring full Chinese display. It can perform most on-site test verification tasks, verify various relays and microcomputer protections, and simulate complex transient and conversion faults for group testing. Ready to use upon startup, with convenient and fast operation.
      3. Dual operation modes, computer-connected operation: Through the full set of Chinese operation software on the Windows platform, it can perform various large-scale, complex, and highly automated calibration tasks. It easily tests and scans various protection settings, stores test data in real time, displays vector diagrams, draws fault waveforms, and prints reports online.
      4. Powerful software functions: Capable of completing highly automated large-scale complex calibration tasks, such as three-phase differential tests, factory power fast switching, automatic backup power switching tests, and line protection synchronism check reclosing. It easily tests and scans various protection settings, performs fault playback, stores test data in real time, displays vector diagrams, and prints reports online.
      5. Abundant switch contacts: The relay protection tester has 7 contact inputs and 2 pairs of open contacts output. Input contacts are compatible with both open contacts and 0～250V potential contacts, with intelligent automatic recognition. Input and output contacts can be expanded according to user needs.
      6. Large-screen LCD display: The unit uses a 320×240 dot matrix large-screen high-resolution graphic LCD display. All operation processes are set on the display screen, with the operation interface and test results displayed in Chinese, providing intuitive and clear visualization.
      7. Self-protection: Features a reasonably designed heat dissipation structure and reliable multiple protection measures with soft start power supply, along with certain fault self-diagnosis and locking functions.
      8. Independent dedicated DC power output: The device is equipped with one dedicated adjustable DC power output of 110V and 220V.
      9. High cost-performance ratio: As a product of cross-disciplinary joint design, it integrates advanced scientific and technological achievements from multiple fields. It combines the performance of large testers with the price of small testers, offering high cost-performance ratio.

II. Product Technical Parameters 
      1. AC current output
           Output accuracy: 0.5 level
           Phase current output (RMS):  0～40A
           Three-phase combined current output (RMS): 0～120A
           Phase current long-term allowable working value (RMS): 10A
           Phase current maximum output power: 420VA
           Three-phase combined current maximum output power: 900VA
           Three-phase combined current maximum output allowable working time: 10s
           Frequency range (fundamental): 20～1000Hz 
           Harmonic times: 1～20 times
      2. DC current output
           Output accuracy: 0.5 level
           Current output: 0～±10A / per phase, 0～±30A / three-phase combined maximum output load voltage: 20V
      3. AC voltage output
           Output accuracy: 0.5 level
           Phase voltage output (RMS): 0～120V
           Line voltage output (RMS): 0～240V
           Phase voltage/line voltage output power: 80VA / 100VA
           Frequency range: 1～20 times
      4. DC voltage output
           Output accuracy: 0.5 level
           Phase voltage output amplitude: 0～±160V
           Line voltage output amplitude: 0～±320V
           Phase voltage/line voltage output power: 70VA / 140VA
      5. Switch quantity and time measurement

Note: The product is continuously updated and improved during the production process. The product appearance images are for reference only (subject to the actual product). Changes may be made without prior notice.