Precautions for operating the transformer on-load tap changer tester

The transformer on-load tap-changer tester is a comprehensive measuring instrument used to measure and analyze the electrical performance indicators of power transformers and special transformer on-load tap-changers in power systems. It adopts computer control, and through a specially designed measurement circuit, it can measure the transition time, transition waveform, transition resistance, three-phase periodicity, and other parameters of the on-load tap changer. The user can directly measure the parameters according to needs and site conditions. The tap changer leads can be measured, or the three-phase bushings and neutral points of the transformer can be directly connected for measurement. The instrument has functions such as analysis, storage, and printing of measured data. It solves the problem that the current measurement method of the on-load tap changer of the power transformer is backward and there is no special testing method. It can promptly diagnose the potential faults of the on-load tap changer during the preventive test of the power equipment and the overhaul of the transformer, which is helpful for improving the operation of the power system. Reliability is of great importance.

Precautions for safe operation of transformer on-load tap changer tester

To ensure the safety of operators and instruments, the manufacturer reminds users to pay attention!

⒈ Be sure to read this manual carefully before using the instrument;

⒉ The operator of the instrument should have common sense in the use of general electrical equipment or instruments;

⒊ This instrument can work normally within the ambient temperature range of -5℃~40℃ and relative humidity ≤80%, but when used outdoors, avoid rain and direct sunlight on the LCD screen;

⒋ The power socket is equipped with a protective ground wire. Please insert the plug into the three-prong jack with ground wire.

⒌ The ​​maximum output voltage of the instrument is 24V. During on-site testing, first connect all leads and then turn on the power of the instrument;

⒍ The power of the instrument must be turned off when changing the clamp. The instrument can be measured with a coil, but it is strictly prohibited to measure with power on;

⒎ More than two sets of lines cannot be connected together as one measurement line, and unused lines must be left open;

⒏ After the test, turn off the instrument first and then remove all wiring;