Reference Standard: DL / T624-1997 Introduction DBJB-1660 microcomputer relay tester is based on the reference to the Ministry issued a "microprocessor-based relay test device technology (draft)", based on a wide range of views of users summarizes the current strengths and weaknesses of the domestic like product, full use of modern technology and advanced microelectronics devices to achieve a new type of miniaturized relay protection tester. It uses a separate stand-alone operation, advanced structure can also join the laptop to run. Host built a new generation of high-speed digital signal processor computer, true 16-bit DAC module, the new modular high-fidelity power amplifier, comes with a large LCD display and flexible rotating mouse controller. Stand-alone independent operation already has a strong function, can be most trials, coupled with a more powerful computer to run the operating functions. Small size, high accuracy. Both with large tester superior performance, advanced features, but also has a small tester compact and flexible, easy to operate, high reliability, high cost performance. Following is a good tool to protect workers in handy. Product Features l while the output six-phase current, six-phase voltage, three-phase differential and complete test equipment from the cast. l high-performance industrial control computer, 8.4 "large screen color LCD display, built-in ultra-thin industrial keyboard, pre-installed Windows operating system, external laptop or desktop. l test software can automatically complete the differential protection, circuit protection, reclosing, low-week period, harmonics, prepared from the cast and other tests, external GPS for longitudinal protection test. l can store test data in real time, showing the test chart, automatically generate test reports. l equipped with multiple USB ports, you can easy data access and software maintenance l instrument has self-protection function, using the rational design of thermal structure, complete with a variety of reliable protection measures to support fault diagnosis and blocking function l AC current technical specifications: 6-way, 40A / phase AC voltage accuracy ≤0.1% l: 6-channel, 120V / phase accuracy ≤0.1% l DC Current: 6-channel, 0 ~ ± 10A / phase, DC voltage accuracy ≤0.5% l: 6-channel, 0 ~ ± 150V / phase accuracy ≤0.5% l Phase: 0 ~ 360 °, the accuracy of ≤0.3 ° l Frequency: 10 ~ 1000Hz, superimposed harmonic precision ≤0.001Hz l: l 0 to 20 times the amount of open: open 8 l the amount of: four pairs