The XHYZ1668A on-load tap-changer is the only moving part connected to the transformer circuit, so 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 the on-load tap-changer, measure the switching time, etc.
Transformer on-load tap-changer parameter testing instrument, this instrument is mainly used to measure the transition waveform, transition time, instantaneous transition resistance value of transformer on-load tap-changer, three-phase synchronicity, etc.
Features 1. The instrument has large output current and its weight is light; 2. Two-stage current output, wider test range and higher stability; 3. Can automatically calculate the transition resistance value and transition time; 4. It has perfect protection circuit and strong reliability; 5. 5.7-inch large LCD display, it's easy for on-site operation; 6. U disk storage function, can store more waveforms data . 7. The keyboard and one-button shuttle are operated independently, which makes the instrument more convenient to operate. Main Technical Parameters Output current: 1.0A, 0.5A ,0.2A Test range: Transition resistance: 0.3Ω~20Ω(1.0A) 5Ω~40Ω(0.5A) 20Ω~100Ω(0.2A)
Transition time: 0 ~ 320ms Test accuracy: Transition resistance: ± (5% reading + 3 words) Transition time: ± (0.1% reading + 3 words) Storage mode: U disk storage, local storage Ambient temperature: -10 ° C ~ 50 ° C Ambient humidity: ≤85%R Working power supply: AC220V±10% Power frequency: 50±1Hz