Our Services

Clear, precise diagrams for power system safety and design.

A detailed single line diagram showing a complex electrical substation layout.
A detailed single line diagram showing a complex electrical substation layout.
A key line diagram illustrating primary equipment and system interconnections.
A key line diagram illustrating primary equipment and system interconnections.
SLD

Accurate single line diagrams supporting protection and safe operation.

KLD

Standardized key line diagrams clarifying equipment layout and connections.

Who We Are

At Protection & Control Design, we specialize in crafting precise single line diagrams that map out entire power systems for safe, efficient operation.

An engineer reviewing a detailed single line diagram on a large monitor in a modern office.
An engineer reviewing a detailed single line diagram on a large monitor in a modern office.
Single Line Diagrams
Key Line Diagrams

Our key line diagrams clearly show equipment layout and connections, helping teams coordinate designs and understand protection strategies.

Subscription Plans

Stay updated with our latest SLD and KLD services