Bay Arrangement Principles Of High-voltage Disconnect Switches In A Double Busbar System

In a dual busbar system, the arrangement of busbar high voltage isolator switch on the front of the bay generally follows the principle of working busbar on the left and standby busbar on the right. Adopting this principle, the working busbar connection hv isolator is located on the left side of the bay's front, while the standby busbar connection hv isolator switch is located on the right.

Continuing with this principle, the relative positions of busbar high voltage electrical isolator and interlocking devices with the busbars should be considered during the design. When the working busbar isolator high voltage is arranged on the left, the layout of the operating mechanism should prioritize both the main circuit flow direction and maintenance access; the standby busbar high voltage isolator on the right should be arranged in a position that facilitates switching during main busbar maintenance.