comparsion of short circuit methods

[wonderchi]

Hi,

Please contribute to the advantages and disadvantages of the following short circuit methods:

1. Hand calculations: in particular methods of symmetrical components

2. Skm software

Thanks

 

[jghrist]

Advantages:

1. Cheap. Aids in understanding of the problem. Flexible. QA possible.

2. Easy. Can handle complicated systems.

 

[Dumbo2929]

Hand Calcs: 1960

SKM: 2000

The biggest problem is giving someone inexperienced the software because they do not know when they made a mistake or sometime is not correct.

 

[DanDel]

1. Only practical for very small systems.

2. Practical for everything but very small systems.

 

[wonderchi]

Thanks for all the replies

 

[Senselessticker]

If I'm doing a big calc in SKM, I usually do a hand calc for a couple selected fault locations to "ballpark" verify the SKM results.

If I'm only needing a fault level for one or two locations, I generally just do the calc by hand to keep my skills honest.