Today, with the booming development of smart grids and new energy power generation systems, the measurement accuracy and operational reliability of power systems have been raised to unprecedented heights. As a key "sensory" component for electric energy measurement, system monitoring and relay protection, low-voltage transformers are crucial to the long-term stability of their internal insulation structures. The series of low-voltage transformer epoxy adhesives specially developed for this field have become the "fixing needle" to ensure accurate power data and safe operation of equipment through excellent insulation packaging technology.

The core of the transformer is a precision-wound coil. The insulation between its turns and layers, as well as the core and shell, are the key to determining the accuracy level and voltage resistance level of the equipment. This series of epoxy glue is designed with a low-stress, low-shrinkage formula, and uses advanced processes such as vacuum casting or pressure gelling to encapsulate the coil into a dense whole without gaps. This process eliminates internal air gaps and prevents the occurrence of partial discharge, which is the starting point for insulation degradation until breakdown. The cured colloid has extremely high volume resistivity and dielectric strength, and can withstand the impact of system overvoltage for a long time.

As transformers develop towards miniaturization, integration and high precision, more complex requirements are put forward for packaging materials. For example, high-precision transformers used for harmonic measurement or fault recording require the colloid to have an extremely low dielectric constant and dielectric loss factor after solidification to reduce the impact on the electric field distribution and ensure the fidelity of the measurement signal. In addition, the excellent resistance to hot and cold cycles ensures that the device is dimensionally stable and crack-free within a wide temperature range of -40°C to +120°C, preventing coil deformation or insulation damage due to thermomechanical stress. The new generation of products also pays attention to environmental protection and processability, and has developed a halogen-free formula with flame retardancy up to UL94 V-0 level, as well as a curing system with longer operating time and gentler heat release to meet the needs of automated production lines. It can be said that behind every low-voltage transformer that operates stably, it is inseparable from the invisible but extremely strong insulation Great Wall constructed of high-performance epoxy glue.