Which side of the bank should be opened to transfer load in a distribution station?

In a distribution station, the low side of the bank is the correct area to open when transferring load. This practice is essential in managing the distribution of electrical loads safely and effectively.

When transferring loads, it is important to maintain system stability and minimize the risk of utility failure or disruption. The low side is designed to handle the lower voltage levels and balances the load accordingly without introducing risks associated with disconnecting the high side, which operates at higher voltages and supports the overall power transfer capability of the station. By opening the low side, operators can isolate parts of the system for maintenance or repairs while ensuring that the overall network remains intact and functional.

The high side, which operates at higher voltages, presents higher risks when opened. Opening this side could lead to voltage fluctuation and instability in the greater distribution network. The neutral side typically serves as a reference point and facilitates ground connection but does not handle load transfer directly like the low and high sides. Therefore, it is not the appropriate choice for load transfer operations. Both sides are not typically opened simultaneously, as that would compromise the operational integrity of the bank.

Understanding the specific roles of each side is crucial for effective and safe load management in distribution stations.