The fully automatic on load tap changer tester is used in power systems to detect on load tap changers（OLTC）The accuracy of test results and the safety of the operation process are crucial for the performance of important equipment. The following provides a detailed explanation of the precautions to be taken when using this tester, including safety operation, equipment maintenance, and testing standards.

Safe operation, risk prevention

Before operating the tester, be sure to familiarize yourself with the various functions and operating procedures of the equipment, and carefully read the user manual. Due to the fact that the testing equipment involves the detection of power equipment, there are often dangerous factors such as high voltage in the operation site. Therefore, operators need to have corresponding professional knowledge of power and strictly comply with power safety regulations.

Wiring is a crucial step, and it is necessary to ensure the correct and secure connection between the test line and the tested on load tap changer. Incorrect wiring may result in inaccurate test data and even damage to the tester or the device being tested. During the connection process, it is necessary to prevent short circuits or poor grounding of the test line to avoid safety accidents. At the same time, the testing site should maintain good ventilation and avoid testing in damp, high temperature, or corrosive gas environments to prevent equipment from being affected by moisture, overheating, or corrosion.

Pay attention to maintenance and extend lifespan

The maintenance of the tester directly affects its service life and testing accuracy. Regularly clean the equipment, use a soft dry cloth to wipe the casing and display screen, and avoid using corrosive cleaning agents. Check if the insulation layer of the test line is damaged, and replace it promptly to prevent electrical leakage.

When the tester is not used for a long time, it should be stored in a dry and ventilated place, and regularly turned on for preheating to ensure the stable performance of the equipment. At the same time, attention should be paid to battery maintenance. If the device is equipped with a battery, it should be charged regularly when not in use for a long time to avoid excessive discharge and damage to the battery.

Standardized testing to ensure accuracy

During the testing process, it is necessary to strictly follow the operating steps of the tester. When setting test parameters, reasonable selection should be made based on the rated parameters of the tested on load tap changer to ensure that the test conditions meet the actual working conditions. During the testing process, closely observe the operating status of the equipment. If any abnormal sounds, odors, or displays are found, the testing should be stopped immediately to investigate the cause of the malfunction.

After the test is completed, save the test data in a timely manner and conduct preliminary analysis on the data. If abnormal test results are found, the wiring and parameter settings should be rechecked, and multiple tests should be conducted if necessary to ensure the accuracy of the data.

The use of the fully automatic on load tap changer tester requires operators to strictly comply with safety regulations, pay attention to equipment maintenance, and standardize the testing process. Only in this way can the safety, efficiency, and accuracy of the testing work be ensured.