Calibration device for on load tap changer testerMain technical indicators

1. Three independent test power supplies, with a large output power supply of 1A;
2. Set the sampling rate of the instrument to 10~20KHZ;
Single waveform large storage time of 6.4 seconds.
4. Transition resistance measurement range: Y/△ type transformer ≤ 40 Ω, Y type transformer ≤ 20 Ω.
5. Measurement accuracy: △ ≤ 10%
Measurement synchronicity error: 0.2ms.
7. Display: 240 × 128T, T6963 controller;
⒏ Printer: MP-40-8 panel type front paper exchange printer;
9. Processing section:
80C320 high-speed 8-bit microprocessor. Program memory 32K;
Maintain 512K bytes of data storage during power failure;
High speed A/D converter with a high sampling rate of up to 400KHZ;
Power supply 220V ± 10%, power ≤ 200W.
Size: 410mm × 320mm.
Weight ≤ 7kg
Random attachments: 4 test wires, 4 crocodile test pliers

Calibration device for on load tap changer testeradvantage:

1. Test the YO Y △ transformer and display the resistance value directly without conversion;
2. Humanized data analysis can automatically identify faults in the middle of the waveform and mark them;
3. The waveform display automatically adjusts the resistance and time amplitude based on the sampled data;
4. △ - type transformers can display three-phase synchronicity;
5. It can be tested with or without windings;
6. Four terminal wiring method, providing high-precision resistance measurement without the need for wire compensation;
7. Continuous testing can be conducted during testing to save time on transformer power outages;
8. The instrument is controlled by a small computer, equipped with an 800 × 480 color LCD touch screen and a high-speed printer;
9. The instrument can automatically save 100 sets of data internally.