Selective Coordination graphing tool

[Grouch]

I'm looking through Google, and I can't find a program to plot TCC curves. I need to chart several breakers and fuses together. Does anybody have recommendations? SKM I cannot do... a little too pricey.

Thanks!

 

[topgone]

I'm looking through Google, and I can't find a program to plot TCC curves. I need to chart several breakers and fuses together. Does anybody have recommendations? SKM I cannot do... a little too pricey.

Thanks!

IDK if Elplek is still free. The thing is, you have to encode the published TCC of different breakers into a text data for the free software to import; calculate for the reactances and inductances in ohms; etc. It's tedious but easier if you have compiled the needed data.

 

[ron]

Our preference is SKM, but if the lift is too much, EasyPower might be better, which we have used as well.

EasyPower® Protection & Coordination™ | Protective Device Coordination Program | EasyPower Electrical Software

A comprehensive protective device coordination (PDC) program and device database, Protection & Coordination makes it impressively easy to verify equipment protection, protective device settings, and coordination intervals.

www.easypower.com

 

[Grouch]

Thanks guys!

My preference is SKM too... but it's so expensive.

 

[Grouch]

Why is SKM so expensive anyway? making it that pricey makes it cost prohibitive for smaller firms.

 

[steve66]

Very limited number of users, and also very limited competition.

Plus, it does take a lot of work to create an extensive library of devices, which is what makes the software worth having.

 

[Grouch]

Going to try to get it purchased where I work... Dapper and Captor modules, with 50 busses only. At least it'll be something.

 

[Grouch]

On SKM, is there any way to choose the Captor module with 50 buses only? The minimum I find is 1000 buses.

 

[junkhound]

5 points off printed curve, use excell and curve fit tool to generate equation.

You can then paste that into any PSpice program for transient response performance of circuits.

Or simply write out your circuit equations in excell and look to the curve fit equation or table lookup for CB responses.

 

[Tainted]

On SKM, is there any way to choose the Captor module with 50 buses only? The minimum I find is 1000 buses.

My company uses:

Dapper for 50 buses and 1 user
Add-on: 1 CAPTOR, 1 A_FAULT

last time I used it was for 1 RCNY §4000-01 filing

 

[mayanees]

On SKM, is there any way to choose the Captor module with 50 buses only? The minimum I find is 1000 buses.

I think you want one of the combo packs:

I bought a 50 bus SKM package in 1992 for $7,500 that included DAPPER and CAPTOR. And those packages were transferrable at the time, so I was able to sell it to my employer for the same price SKM was asking in 1999 of $10,000. I don't think the packages are transferrable anymore. Good luck with the purchase. I think their tech support is good, even to the point of giving engineering recommendations.