Best software for low voltage single line diagram design and calculation

[hanhao]

Best software for low voltage single line diagram design and calculation

what is the best software out there for low voltage single line diagram design and calculation?

 

[Bob S]

I have been using free for downloading LTSpice IV at www.linear.com for op amps, transistors, etc.

 

[berkeman]

Best software for low voltage single line diagram design and calculation

what is the best software out there for low voltage single line diagram design and calculation?

What's a low voltage single line diagram? Do you mean like a transmission line for RF signals?