Transformer on-load tap-changer tester winding mode:
Wiring method (this determines the resistance algorithm, it must be correct);
YO type wiring is that the transformer has a neutral point;
The Y-type wiring is drawn from the transformer without a neutral point;
△ type wiring
When testing, it is necessary to strictly follow the wiring displayed on the screen, (A→CB→C) test one group is completed, return the transformer on-load switch to the gear just tested (without adding test current), and then test another group (A→CB→C) BC→B) (the cursor point is black), the results of the following three phases are displayed on one screen, and the three-phase synchronicity can be displayed.
For testing Y0Y△ type transformers, the resistance value can be displayed directly without conversion. The four-terminal wiring method provides high-precision resistance measurement without wire compensation. The instrument can be tested with or without winding.
GDKC-5000 Transformer On-Load Switch Tester
HV Hipot GDKC-5000 transformer on-load switch tester
The transformer on-load switch tester is designed according to the high-voltage test equipment of the electric power industry standard of the People’s Republic of China, the general technical conditions DL/T846, 8-2004, and can meet the requirements of the “Power Equipment Handover and Preventive Test Regulations”. The action sequence of the tap changer, the measurement switching time and other requirements. It can realize relatively accurate measurement of the transition time, transition waveform, transition resistance, three-phase synchronization and other parameters of the on-load tap-changer, and is an ideal device for testing the on-load tap-changer. (The user is an on-load switch with capacity adjustment, please inform in advance)
Post time: Jul-27-2022