Circuit Diagrams Explained: 3-Line, Single Line & Ladder

[M.Samad-CNAQ-]

HI every one,i m confused between three line,single line and ladder circuit diagrams.Plz tell brief discription about them.

 

[berkeman]

HI every one,i m confused between three line,single line and ladder circuit diagrams.Plz tell brief discription about them.

Could you please provide examples of each?