Transformers are the heart of electrical power systems, and ensuring their performance and safety is vital to the stability of the entire power grid. Among the various tests carried out during transformer manufacturing and maintenance, turns ratio testing plays a crucial role. A transformer's turns ratio, the ratio between the number of windings in the primary and secondary coils, directly affects voltage transformation and load balancing. Even a slight deviation can be an early indicator of internal faults, winding damage, or insulation failure.

In the power transmission and distribution industry, sulfur hexafluoride (SF₆) plays a critical role as an insulating and arc-quenching medium in high-voltage switchgear, circuit breakers, transformers, and gas-insulated substations (GIS). Its exceptional dielectric strength, chemical stability, and thermal conductivity make it the gas of choice for ensuring safety and reliability in modern electrical systems.

In the rapidly evolving field of non-destructive testing (NDT), industrial endoscopes have become indispensable tools due to their intuitive visual inspection capabilities, non-invasive operation, and high diagnostic accuracy. Whether it’s in aerospace, automotive maintenance, energy, or security, these devices enable real-time internal observation without dismantling equipment, greatly enhancing inspection efficiency and safety.