Profile:
KDJB-702 relay protection tester is a new miniaturized microcomputer relay protection tester based on the "Technical Conditions of Microcomputer relay protection test Device (Discussion Draft)" issued by the Ministry of Power, and widely listen to the views of users, summarize the advantages and disadvantages of similar products in China, and make full use of modern microelectronics technology and devices.
It adopts a structure that can be run independently in a single machine and can also be connected to a laptop computer. The host has a new generation of high-speed digital signal processor microcomputer, 16-bit DAC module, a new modular high-fidelity high-power amplifier, a large-screen LCD display and a flexible and convenient rotating mouse controller. The independent operation of a single machine has a strong function, can carry out most tests, and the connected computer has a stronger operating function. Small size, high precision. It not only has the performance and function of a large tester, but also has the advantages of small, flexible, easy to operate, high reliability, and high performance-price ratio. It is a good tool commonly used by care workers.
Features:
The main features of the device
1. Intelligent host, the host adopts high-speed and high-performance digital signal processor with fast computing speed and wide transmission band, and can generate high-density fitted sine wave of 360 points per week for fundamental wave. This is a relatively high level of similar output methods at present. Due to the number of points, the fidelity of the waveform is high and the distortion is small, especially in the harmonic output, even for 9 harmonics, 300Hz can also reach a high density of 60 points per week.
2. Independent operation of a single machine, the device is operated by a convenient and flexible rotating mouse through a large screen LCD display, a full set of Chinese display. Can complete most of the field test verification work, can be a variety of relays (such as current, voltage, inverse time, power direction, impedance, differential, low cycle, synchronous, frequency, DC, intermediate, time, etc.) and microcomputer protection verification, and can simulate a variety of complex transient, permanent, transformational faults for the whole group test.
3. Connect to the computer and run, through the full set of Chinese operating software on the Windows platform, you can carry out a variety of large complex and more automated verification work, you can easily test and scan a variety of protection values, you can store test data in real time, display vector graphs, draw fault waveforms, online printing reports, etc.
4.16-bit DAC chip, 16-bit high resolution to ensure high accuracy of waveform fitting, good linearity. Small signal output is also small distortion.
5. The machine adopts 320×240 dot matrix large screen high-resolution graphic LCD display, all operation processes are set on the display, the operation interface and test results are displayed in Chinese, the display is intuitive and clear.
6. The controller "rotating mouse" used in the "fool" operation simplifies the structure of the operation part, and the operation is simple, fast and easy to master.
7. The output stage adopts a new type of high-power modular high-fidelity power amplifier components, which can be used as current output or voltage output, with large output power, each phase voltage can be output up to AC130V(xN), current three and output up to AC120A(xN). Good precision, high reliability.
8. Current, voltage direct output Phase voltage, phase current using DC type power amplifier output mode, can directly output AC voltage, AC current, DC voltage, DC current, and variable Angle, variable frequency, can be superimposed 0-9 harmonics.
9. Self-protection, using a reasonable design of the heat dissipation structure, and has a variety of reliable and perfect protection measures and power soft start, and a certain fault self-diagnosis and blocking function.
10. Rich contacts, with 7 contact input and 2 empty contact output. The input contact is compatible with null contact and 0-250V potential contact, which can be automatically identified intelligently.
11. The host integrated single-box structure, with AC 220V power supply, boot can work. Small size, light weight, easy to carry, flow test is convenient.
12. Cost-effective, belongs to cross-professional joint design products, integrated multi-professional scientific and technological achievements. Both the performance of a large tester, and the price of a small tester, with a high performance-to-price ratio.
