How many type of switchgear panel diagram

Single Line Diagram (SLD) drawing and Secondary diagram drawing.

The most common circuit configurations of high and medium-voltage switchgear installations are shown in the form of Single Line Diagrams.

When drawing up a single line diagram, a great number of possible combinations of incoming and outgoing connections have to be considered.

Secondary Diagram drawing, usually were circuit of low voltage, such as protection relay, meters for measurement, indicators, which would be design for remote control and local control.

The switchgear is design the low voltage to control and protection the Medium voltage & High voltage circuit, for safety, and remote control would be separately SCADA in control room.