How to do On-Load Tap Changer Tests

a) When there is no voltage at the transformer, operate the tap changer 8 times through the whole adjustement range

b) When there is no voltage at the transformer, operate the tap changer once through the whole adjustment range at the 85% of the auxilary rated voltage

c) When the transformer is at no-load condition, operate the tap changer once through the whole adjustment range at rated voltage and frequency

d) When one of the windings is short-circuited and the other winding is loaded with rated current as far as possible, operate 10 times 2 taps at both sides of the rated tap position

BYKC-3000 Transformer On-Load Switch Tester can meet the requirement of checking the order of execution of the on-load tap-changer switch, and measuring the switching time. It can measure the transition time, transition waveform, transition resistance, three-phases synchronism of on-load tap-changer. It is the ideal equipment to test the on-load tap changer.

1. Test Y0Y△ type transformer, displaying resistance value directly without conversion

2. With humanized data analysis, it can find the fault in the waveform automatically and make remarks.

3. Waveform is displayed based on sampling data and adjusts the resistance value and time range automatically.

4. △ type transformer can display three phases of synchronism.

5. Can test with winding or without winding.

6. With four-ends wring way, measure the resistance precisely, there is no need for lead-wire compensation.

7. It can test continuously, saving the time of transformer outage.

8. It can generate Word report, convenient to save and search the data.

9. It is controlled by a microcomputer, matching 800×480 color LCD touch screen, fast printer, and supporting mouse. Easy to operate.

10. Can save 1000 groups of data inside and connect with USB to save as well.