Brief Introduction
The relay protection device tester is a new miniaturized microcomputer relay protection tester based on DL/T 624-2023 "Technical Conditions for Microcomputer relay protection test Device" issued by the Ministry of Power, which is widely listened to the views of users, summarized the advantages and disadvantages of similar domestic products, and made full use of modern advanced microelectronics technology and devices. Flexible combination of voltage and current output up to 6 phase voltage and 6 phase current, can be any combination to achieve conventional 4 phase voltage, 3 phase current type, 6 phase voltage type, 6 phase current type, and 12 phase output mode, not only compatible with the traditional various test methods, but also convenient for three-phase transformer differential test and plant power quick cutting and ready self-injection test.
Product Features
1, voltage and current output flexible combination: type with standard 4-phase voltage and 3-phase current output, can be easily carried out a variety of combination output for various types of protection tests. Each phase voltage can output 120V, current three and can output 120A, the fourth phase voltage Ux is a multi-function voltage item, can be set to 4 kinds of 3U0 or detection voltage, or any voltage value of the case output.
2,easy to operate: the device panel is equipped with trackball mouse, optimized keyboard and large screen TFT LCD display, built-in all Chinese Windows platform operating software. Boot can be used, easy to operate.
3,dual operation mode: In addition to stand-alone operation, the device can also be connected to an external laptop or desktop computer for operation, the two ways of function is completely consistent, truly complete dual operation mode.
4,new high-fidelity linear power amplifier: The output has always adhered to the use of high-fidelity, high-reliability modular linear power amplifier, rather than switching power amplifier, excellent performance. It will not cause high and medium frequency interference to the test site, and ensure the smooth waveform from large current to small current.
5,high-performance host: the output part adopts DSP control, fast computing speed, strong real-time digital signal processing ability, wide transmission frequency band, control of high resolution D/A conversion. The output waveform precision is high, the distortion is small and the linearity is good. A large number of advanced technology and precision components and materials are used, and professional structural design is carried out, so the device is small in size, light in weight, full in function, easy to carry, can be started to work, and flow test is very convenient.
6,powerful software: can complete a variety of large and complex verification work with high degree of automation, can easily test and scan a variety of protection set values, fault playback, real-time storage of test data, display vector graphics, online printing reports, etc.
7,with independent special DC power output: the device is equipped with a 110V and 220V special adjustable DC power output.
8,the interface is complete: the device panel has its own keyboard and mouse, can be single operation, but also through the keyboard and mouse interface external keyboard and mouse operation; It also comes with two USB ports and RS232 ports for communication with computers and other external devices.
9,perfect self-protection function: heat dissipation structure design is reasonable, hardware protection measures are reliable and perfect, with power soft start function, software for fault self-diagnosis and output lock and other functions.
Product Parameters
| Current channel number |
Standard 6 phase |
| Voltage channel number |
Standard 6 phase |
| AC current output range |
30A/phase or 180A (six parallel) |
| DC current output range |
10ADC/phase |
| AC voltage output range |
120VAC/phase |
| DC voltage output range |
160VDC/phase |
AC current output
| 6 phase current output per phase (effective value) |
0 ~ 30A output precision 0.2 |
| 3 phase current output per phase (effective value) |
0~60A |
| 6 phase parallel current output (RMS) |
0~180A |
| Phase current long-term allowable working value (RMS) |
10A |
| Maximum output power of phase current |
300VA |
| 6 phase parallel current maximum output power) |
1000VA |
| 6 Allowable working time for maximum output of phase parallel current |
10s |
| Frequency range (fundamental) |
0~1000Hz |
| Harmonic frequency |
1~20 |
DC current output
| Current output |
0 ~ ±10A/phase output accuracy 0.5 level |
| Maximum output load voltage |
20V |
AC voltage output
| Phase voltage output (RMS) |
0 ~ 120V output precision 0.2 |
| Line voltage output (RMS) |
0~240V |
| Phase voltage/line voltage output work |
80VA/100VA |
| Frequency range (fundamental) |
0~1000Hz |
| Harmonic frequency |
1~20 |
DC voltage output
| Phase voltage output amplitude |
0 ~ ±160V output accuracy 0.5 |
| Line voltage output amplitude |
0~±320V |
| Phase voltage/line voltage output power |
70VA/140VA |
Switching value
| 8 switch inputs |
Null contact 1 ~ 20mA, 24V |
| Potential contact access "0" : 0 ~ +6V; 1: +11 V to +250 V |
| 4 pairs of switching output |
DC:220 V/0.2 A;AC:220 V/0.5 A |
Time measuring range
| Time measuring range |
0.1ms ~ 9999s |
| Measurement accuracy |
0<0.1mS |
| Volume |
375×350×180 (mm3) |
| Unit weight |
17kg |
Audited Supplier 
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