Key Factors in Substation Equipment Selection and Short-Circuit Current Calculation

2026-03-14 09:53:41

In a 35kV substation, equipment selection and short-circuit current calculation are of great importance. First, the rated voltage range and allowable deviation of the transformer must be fully understood to ensure its Safe Operation under the designed load. Short-circuit current calculation is mainly based on the substation wiring diagram, equipment parameters, and measurement data, which are crucial for equipment protection and switchgear selection. Proper selection can reduce the damage to equipment when a fault occurs. In addition, the connection method between the 35kV transformer and other facilities is also an important factor affecting the short-circuit current. Ensuring a reasonable design will greatly improve system reliability. By mastering these key factors, the operational safety and stability of the 35kV substation can be effectively enhanced.