Exhibit 4.jpeg

This image is a technical specification plate and schematic diagram for a Hyundai Auto Transformer, model RP-8451. The transformer is a single-phase unit with a rated frequency of 60 Hz and standard ANSI C57.12.00 compliance. Key electrical specifications include primary voltage ratings ranging from 170/528 to 230V, secondary voltages from 2261/3 to 498.75V, and rated power of 30 kVA with 55/65°C temperature rise. The unit features copper windings and is designed for 100% vacuum filling with a manufacturing date of 2001.

The technical documentation includes detailed winding specifications organized by voltage tap settings (1-5), with corresponding amperage ratings for high voltage (HV), low voltage (LV), and tertiary voltage (TV) sides. A vector diagram illustrates the polarity (subtractive) and bank connection configuration. The transformer includes over-load capacity specifications: 36,667 kVA for HV and LV windings over 30 minutes, and 40,700 kVA for TV windings. Additional safety information notes that the HV winding has 30-cycle over-voltage capacity of 815 kV and 575 kV capacity for 30-minute duration. The unit is manufactured by Hyundai Heavy Industries Co., Ltd., located in Ulsan, Korea.