Transformer on-load tap changer (OLTC) plays an important role in controlling the voltage of a transformer. It is an essential part of a transformer that allows the adjustment of voltage in a power system that experiences fluctuating loads. In this article, we will discuss the knowledge about transformer on-load tap changers (OLTC) and how it affect the performance of a transformer.
The accuracy and performance of a transformer on-load tap changer (OLTC) need to be regularly tested to ensure safe and reliable operation. This can be achieved using a transformer OLTC tester, which measures the OLTC's resistance, insulation resistance, and contact resistance, among others, and checks its operation and control mechanism. Regular testing helps to identify any potential failures before they become serious problems.
In the "Electric power equipment handover and preventive test procedures", it is required to check the action sequence of the on-load tap-changer and measure the switching time. To this end, our company has successfully developed the transformer on-load tap-changer parameter test instrument, which is mainly used to measure the transition waveform, transition time, instantaneous transition resistance value, three-phase synchronization, and so on.
High degree of intelligence, all Chinese menu prompts, easy to operate. The instrument is small, lightweight, strong anti-interference ability, greatly reducing the labor intensity of the field staff, is the power supply unit, and transformer manufacturing industry to ensure safe production, and improve product quality of the ideal instrument. The output open circuit voltage of the instrument is 28V, and the transition resistance of 10Ω can be tested at the current of 1A, and the 0.5A and 0.3A are provided to facilitate the test of larger transition resistance.