Minimum short circuit fault level calculations
Minimum short circuit fault level calculations
(OP)
What is the requirement for calculating the minimum fault levels?
According to IEC Standard, Maximum and Minimum short circuit levels must be produced. I have a SKM PowerTools for Windows software which calculates Comprehensive Fault Currents without a mention of the minimum fault currents. If I want to establish Minimum fault currents what steps should be taken?
Thank you all in advance.
According to IEC Standard, Maximum and Minimum short circuit levels must be produced. I have a SKM PowerTools for Windows software which calculates Comprehensive Fault Currents without a mention of the minimum fault currents. If I want to establish Minimum fault currents what steps should be taken?
Thank you all in advance.






RE: Minimum short circuit fault level calculations
Mike
RE: Minimum short circuit fault level calculations
Among other modules is the A_fault which performs SCC calcs per ANSI/IEEE stds., which you seem to be working with.
RE: Minimum short circuit fault level calculations
The IEC standard does not recognise the use of loadflow voltages for fault current calculations
For the UK, (from memory) the standard uses Cmin and Cmax values of 0.95 and 1.05 for voltages below 1000V, above 1000V the values are 1 and 1.1.
These can be seected from Dapper when you select the option to run the study calculations