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GYWJB-6 Microcomputer Relay Protection Tester (6U + 6I)

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Product Details
AC current source

Amplitude range 6×(0~30A)/phase;accuracy:0.5%
Six-phase current parallel output maximum 180A
Phase current long-term allowable working value 10A
power 300VA/phase
Six-phase parallel maximum power 900VA
Allowable working time at maximum output of six-phase parallel 10s
Frequency Range 0~1000Hz;accuracy:0.001Hz
Harmonic order 2~20次;phase:0~360°;accuracy:0.1°
DC current source  
Amplitude 20A/phase
power 300VA/phase
Accuracy 0.50%
AC voltage source  
Amplitude range 6×(0~125V);accuracy:0.5%
Line voltage range 0~250V
Phase voltage / line voltage output power 70VA/100VA
Frequency Range 0~1000Hz;accuracy:0.001Hz
Harmonic order 2~20次;phase:0~360°;accuracy:0.1°
DC voltage source  
Phase voltage output amplitude 0~±150V
Accuracy 0.50%
Line voltage output amplitude 0~±300V
Phase voltage / line voltage output power 90VA/180VA
Switching terminal  
Digital input terminal 8对
Empty contact 1~20mA,24V Active inside the device
Potential flip 0~6VDC as low level;15~250VDC as high level
Switch output terminal 4 pairs, empty contacts, breaking capacity: 110V / 2A, 220V / 1A
Time measurement range  
range 1ms~9999s
measurement accuracy 1ms
volume and weight  
volume 455×530×220mm3
weight about 30kg
power supply  
AC 220V±10% ; 50Hz,15A

Products Features:
1. Meet all test requirements on site. The microcomputer relay protection tester has a standard six-phase current,
six-phase voltage output at the same time, current 30A / phase, voltage 125V / phase. Six-phase current can reach
180A in parallel. It can test all kinds of traditional relays and protection devices, as well as all kinds of modern
microcomputer protection, especially for transformer differential protection and automatic switching devices.
The test is more convenient and perfect.
2. Various technical indicators have reached the standard of DL / T624-1997 "Technical Conditions for
Microcomputer-based Test Equipment for Relay Protection" issued by the Ministry of Electric Power.
3. Classic WindowsXP operation interface, friendly man-machine interface, easy and fast operation;
high-performance embedded industrial control computer and 8.4-inch TFT true color display with 800 × 600
resolution, can provide rich and intuitive information, including equipment Current working status and various
help information.
4. The native Windows XP system comes with a recovery function to avoid system crash caused by
illegal shutdown or misoperation.
5. Equipped with ultra-thin industrial keyboard and optical mouse, you can complete various operations through
the keyboard or mouse just like ordinary PC.
6. The main control board adopts DSP + FPGA structure and 16-bit DAC output. It can generate high-density sine waveof 2000
points per week for the fundamental wave, which greatly improves the quality of the waveform and the accuracy of the tester.
7. The power amplifier adopts high-fidelity linear power amplifier, which ensures the accuracy of small current and the
stability of large current.
8. This microcomputer relay protection tester adopts USB interface to communicate with PC directly without any
transfer wiring, which is convenient to use.
9. Can be connected to a laptop (optional) to run. The laptop and the industrial computer use the same set of
software, and there is no need to re-learn the operation method.
10. Equipped with independent dedicated DC auxiliary voltage source output, the output voltage is 110V (1A),
220V (0.6A). It is used for relays or protection devices that require DC working power.
11. With software self-calibration function, it avoids the need to open the case to calibrate the accuracy by
adjusting the potentiometer, thereby greatly improving the stability of accuracy.

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