Second, understand the functions of each device in the primary system diagram of electrical equipment (such as the functions of switch, transformer, lightning arrester, CT and PT). Familiar with primary system diagram (such as advantages and disadvantages of double bus connection)
Third, understand the operation method of the on-site power distribution cabinet, and understand the principle and structure of the switchgear.
Four, understand the secondary wiring schematic diagram (what is the operating circuit, etc. )
Five, understand the management method of two votes three and how to use two votes to fill in two votes.
Six, learning electrical operation (or maintenance) post procedures.
Seven, learn the protection principle and simple protection setting calculation.