By hvhipot 
The microcomputer relay protection tester is an important power testing instrument to ensure the safe operation of power in the power system.
During the use of the microcomputer relay protection tester, it is usually used in accordance with the instruction manual or the system is not trained when it is purchased. In this way, you will always be at a loss when you encounter difficult problems, how to use the tester!
1. Wiring instructions
The yellow, green, red and black terminals on the panel of the microcomputer relay protection tester are the voltage output terminals of the instrument. There is a DC output and power connection on the back of the panel. There is a grounding jack next to the power jack to facilitate the tester to ground the equipment.
Demo:
After turning on the power of the instrument, turn it on. According to the color of the coil, connect the terminal of the corresponding color. For example, the black coil is inserted into the black jack of the instrument’s current output, and the other end is connected to the relay. Do the corresponding wiring operations in the same way for other colors according to the corresponding parameters and colors. Then use a multimeter to test whether the wiring is successful.
2. Operation demonstration
Adjust the current amplitude and amplitude step length according to the current phase of HV Hipot Electric Co., Ltd. own terminal. Single-phase test does not need to set the phase. For other phase tests, you need to adjust the phase, and then set the phase step. Adjust the test type to HV Hipot Electric Co., Ltd. own test type (manual or automatic) and start the test. During the test, when you hear “bell~”, turn the button to “stop”, and then get the test action time. If you need to increase the test time, just adjust the amplitude step.
3. Output detection of AC voltage and AC current
After that, remove the test wire and use a multimeter to detect the output of current and voltage, and return the interface to the parameter setting interface of the AC test. Also, first set the voltage amplitude, amplitude step and other parameters, and then use the multimeter to test the output on the operation panel. Voltage output. Immediately adjust the current amplitude, amplitude step, etc., switch the multimeter to the AC file, plug the multimeter head into the current output of the panel, and turn the button on the instrument panel to start the test, and observe whether the multimeter is in line with the current on the instrument Consistent, complete the test.