There are various fault diagnosis methods for ultra-low-frequency generators, including power supply issues, abnormal high-voltage systems, triggering of protection functions, and short circuits in the test samples. Let's explore some common faults and the corresponding diagnosis methods.
1. The digital display does not light up after turning on the power.
Check whether the power connection and the fuse are functioning properly. If the fuse is damaged, a new fuse of the same specification needs to be replaced.
2. The high-voltage indicator light is not bright, and the high voltage can't be applied.
Zero return issue: If there is no zero position, please turn the high-voltage output adjustment knob and the fine-tuning knob counterclockwise to return to the zero position until the zero indicator light goes out. Then, you can try to apply high voltage.
Ground wire issue: Ensure that the ground wire is connected correctly.
Cable connection issue: Check and confirm that the cable between the control box and the high-voltage tower is firmly connected. If there is looseness or an incorrect connection, reconnect the cable and restart the equipment.
Soldering break issue: If a certain wire terminal in the control box is soldered and disconnected, it needs to be resoldered before restarting the equipment.
3. Protection is triggered before reaching the rated voltage.
Overcurrent issue: This may be caused by a short circuit or excessive leakage current, resulting in rapid voltage rise when dealing with large-capacity loads. The solution is to restart the equipment and slow down the voltage rise speed.
Overvoltage issue: If the overvoltage protection setting knob is not at the maximum position, please rotate it clockwise to the maximum position and then restart the equipment.
4. Short circuit occurs on the test object under high voltage
When the test object experiences a short circuit under high voltage conditions, due to the large short-circuit current, all the fault indicator lights may light up. This is a normal phenomenon. After troubleshooting the test object, restart the equipment, and normal operation can be resumed.
5. Digital reading has a large fluctuation.
If the digital reading of the voltmeter fluctuates significantly, check whether the shielding wire heads at both ends and the central shielding wire head of the connecting cable are disconnected. If any problem is found, promptly repair it by welding.