1. Intelligent host, using DSP chip control, 16-bit DAC output, can generate a high-density sine wave of 2000 points per cycle for the fundamental wave, which is the highest level among domestic testers. Greatly improved waveform quality and increased the accuracy of the tester.
2. Stand-alone operation, the device is operated through a large-screen LCD display with a rotary mouse.
3. Connect to a computer for operation, print reports, etc.
4. "Foolproof" operation, using advanced "photoelectric rotary mouse" controller, eliminating complex keyboard operations, no computer knowledge required, easy to learn and operate.
5. Modular design, all plug-ins are completely independent, hardware maintenance and upgrade can be achieved by simply replacing plug-ins.
6. With six-phase current and six-phase voltage output, it is convenient to test the standby power supply automatic switching device and microcomputer differential protection device, making this test very perfect.
7. Stand-alone operation, built-in high-performance industrial computer, main frequency 300~600MHz, 128M memory, 12G hard disk, running Windows XP operating system, panel equipped with high-grade stainless steel keyboard, trackball mouse, 8.4-inch TFT true color LCD display.
8. Six-phase current and six-phase voltage output simultaneously.
9. Conveniently test the standby power supply automatic switching device and microcomputer differential protection device.
1. The microcomputer relay protection tester meets all on-site test requirements. It has standard four-phase voltage and three-phase current output, voltage 125V/phase, current 30A/phase. Three-phase parallel can reach 90A. It can test traditional relays and protection devices, as well as modern microcomputer protection devices, especially for transformer differential protection and standby power supply automatic switching devices, making tests more convenient and perfect.
2. All technical indicators fully meet the standard of DL/T624-1997 "Technical Conditions for Microcomputer-based Test Equipment for Relay Protection" issued by the Ministry of Electric Power.
4. The first in the domestic industry to adopt imported brushed stainless steel panel and stainless steel keyboard, and use touch mouse, overcoming the disadvantages of trackball mouse being inflexible and easily damaged. It also uses an 8.4-inch TFT true color display with a resolution of 800*600, making the overall operation convenient and durable.
5. The main control board adopts DSP+FPGA structure, 16-bit DAC output, can generate a high-density sine wave of 2000 points per cycle for the fundamental wave, greatly improving waveform quality and increasing the accuracy of the tester.
6. The current and voltage of the microcomputer relay protection tester adopt high-performance linear amplifier direct coupling output mode, so that the current and voltage sources can directly output AC and DC waveforms, and can output various combined waveforms such as square waves, superimposed harmonic waves, and fault transient waveforms through software calculation, which can better simulate the current and voltage characteristics during various short-circuit faults. The power amplifier circuit uses imported high-power high-fidelity modular power devices as the power output stage, combined with carefully designed heat dissipation structure, with sufficient power redundancy and thermal capacity. The power amplifier circuit has complete overheat, overcurrent, overvoltage and short-circuit protection, and the current loop allows open circuit without damaging the device.
10. It can calibrate various on-site relays, protection and safety automatic devices, and can simulate various complex transient, permanent, and conversion faults for whole-set tests. It can save test data in real time, display vector diagrams, draw various characteristic curves, and print reports online.
11. Adopts USB2.0 interface to connect with PC, no need for any conversion cable, easy to use.
13. The whole machine adopts switching power supply and switching amplifier technology.
14. Modular design, all plug-ins are completely independent, hardware maintenance and upgrade can be achieved by simply replacing plug-ins.
15. Arbitrary configuration, such as configuring as 6-phase current, 5-phase voltage + 2-phase current, etc.
16. Users can calibrate the accuracy of the tester through software.
17. Can replay fault recording data in Comtrade format.
18. Designed with power factor correction circuit according to international standards, making the device efficiency as high as 95% or more.
19. When the supply voltage of the microcomputer relay protection tester drops to 120V, it still ensures normal operation of the device.
20. The power amplifier adopts hardware protection method to ensure the reliability of the device.
