Description
Overview
GAOTek Transformer On-load switch Tester the on-load tap changer is the only moving part connected with the transformer loop; the detection of the on-load tap changer has attracted more and more attention. In the “Power Equipment Handover and Preventive Test Regulations”, it is required to check the action sequence of on-load tap changers and measure the switching time. This transformer on-load tap-changer parameter testing
instrument is mainly used to measure the transition waveform, transition time, transient resistance value, three-phase synchronization, etc. of the transformer on-load tap-changer.
Features
· Instrument has large output current and light weight
· Instrument outputs an open circuit voltage of 28 V, which can test the transition resistance of 10 Ω under the current of 1 A gear and is equipped with 0.5 A and 0.3 A gears, which is convenient to test the larger transition resistance
· Has perfect protection circuit and strong reliability
· Vertical chassis structure
· 7-inch large LCD display, easy to operate on site
· Has U disk storage function, which can store more data waveforms and 1000 groups of data
· The resistance values are displayed directly without conversion
· Can be tested with or without windings
Technical Specifications
| Output Current | 0.5 A, 0.3 Optional |
| Resistance Range | 0.1 ω to 100 ω |
| Resistance Measurement Accuracy | (Reading × 1 %), Resolution: 0.01 ω. |
| Measurement Range of Transition Time | 1 ms to 300 ms. |
| Transition Time Measurement Accuracy | ± 0.2 % Ms, Resolution: 0.1 ms. |
| Sampling Frequency | 30 k |
| Storage Method | U Disk Storage and Local Storage. |
| Working Temperature | -4 ° F to 122 ° F (-20 ℃ to + 50 ℃) |
| Ambient Humidity | ≤ 90 % Rh, No Condensation. |
| Operating Power | AC 220 V 10 %,50 H z 10 %. |