The acceptance test of a new automated inspection system revealed the critical role of the power supply in maintaining stable operation of current transformers. This component ensures consistent voltage delivery to the sensors, enabling precise measurement of electrical currents throughout the production line. In industrial plant settings, it supports the continuous monitoring of electrical systems, helping operators detect anomalies early and prevent costly downtime. The power supply is integrated into control panels and diagnostic modules, where it sustains the functionality of safety and performance-critical circuits. By providing reliable power, it enables real-time data acquisition and system diagnostics, which are essential for maintaining operational efficiency. In plants handling heavy machinery and complex automation, this part is a silent but vital contributor to the reliability of electrical infrastructure. Its presence ensures that even under fluctuating load conditions, the measurement systems remain accurate and responsive. This makes it indispensable for facilities that rely on continuous, high-precision electrical monitoring.