Welcome to SKM Systems Analysis, Inc.

Frequently Asked Questions	Application Guides	Power Systems Study Specs	Tech Support
Arc Flash Educational Video

Frequently Asked Questions About SKM Power*Tools Software
Learn new tips and tricks about SKM Power*Tools and how to use your software more efficiently.

For assistance with Captor Library equipments/devices or to request a device not found in your existing library, please email requests to Library@skm.com. Please include all manufacturer datasheets in .pdf format along with the name of your company and serial number.

	Category: Arc Flash
	1.	Where do I define Glove Class in PTW-ArcFault study similar to the PPE table?
	2.	What is the “Arc Flash Special Instantaneous Protection” field for the Bus component on the Equipment & Arc Flash subview?
	3.	How do I change my Working Distance?
	4.	Why can’t I change the breaker opening time in the arc flash spreadsheet?
	5.	How do I make use of custom labels?
	6.	How do I change the working distance in my Arc Flash spreadsheet?
	7.	How do I exclude bus nodes in my Arc Flash hazard analysis report?
	8.	How do I display Arc Flash results for Protective Device Line and Load Side on the datablock?
	9.	How do I make the PPE table in Arc Flash project specific?

	Category: Captor and Library
	1.	How do I modify the CAPTOR library?
	2.	How do I transfer devices between Bus libraries?
	3.	How do I transfer devices between Cable libraries?
	4.	How do I transfer devices between Captor libraries?
	5.	How do I modify TCC curves that intersect other curves in CAPTOR?
	6.	How do I transfer devices between Transformer libraries?
	7.	How do I transfer devices between Transmission Line libraries?
	8.	How do I make a project point to a different library?
	9.	How do I make my existing circular mils data available in a new library?
	10.	How do I recover when Power*Tools crashes from a moved or deleted library?
	11.	Merging Protective Device Libraries
	12.	How do I display the TMS curves on my TCC drawing?
	13.	Showing Fault Current in the TCC
	14.	How do I set the Form Grid color for my TCC drawings?
	15.	How do I quickly find component in any one-line or TCC?
	16.	How do I create/model a retrofitted breaker in Captor?

	Category: Short Circuit
	1.	I’ve run a short circuit study (balanced) but I have protective devices in my TCC that still have Isc Amps of 200,000A. Why don’t they pickup the calculated bus fault current?
	2.	Why is the calculated SLG fault higher than the calculated 3phase fault?
	3.	The generator manufacturer says my generator will only put out so much SLG fault current (8.3kA), but PTW calculates a much higher SLG current, why?
	4.	What is the purpose of the Equipment Evaluation Study module?

	Category: Hardware/Software Keys
	1.	How do I make my PC see the Glenco Hardware key?
	2.	What do the different color USB keys indicate?
	3.	I’m trying to run PTW and I receive the following error code. My software protection is the USB key.
	4.	How do I install MemoHASP drivers from the command prompt?
	5.	How do I make my PC see the Memohasp Hardware key?
	6.	NetHasp Status Codes Table
	7.	When I try to start PTW, the network hardware lock indicates that all licenses are currently being used and I cannot get into the program. When I check, no one else is currently using PTW.
	8.	How do I resolve the error message: “Network Driver Does Not Appear to be serving this directory”?

	Category: Load Flow
	1.	How is the induction motor startup current multiplication factor calculated in a load flow study?
	2.	If I’m running a LF study (motor impact starting) and my sources are all generators (defined as SB), what source impedance is the LF study options dialog referring to?
	3.	How do I resolve a diverging soluton in the load flow study?
	4.	How do I model a reduced voltage starter when performing an Impact Motor Starting study using the Load Flow?
	5.	Initial Voltage for Utility or Swing Bus Generator for Load Flow Study
	6.	Initial Voltage for Utility or Swing Bus Generator in Short Circuit Study

	Category: General PTW
	1.	How do I create a backup copy of my PTW32 project files?
	2.	How do I fix a PTW software crash when I attempt to export a Crystal Report file?
	3.	How do I access my custom symbols in PTW?
	4.	How do I add new symbols to PTW?
	5.	How do I convert my old projects to the newest version of Power*Tools?
	6.	How do I create a pdf file?
	7.	How do I disable the display of energized state components and change the color of non-energized components?
	8.	How do I fix a CR Linking Problem?
	9.	How do I fix Crystal Report data errors?
	10.	How do I make a project point to a different library?
	11.	How do I make global changes of input data and attributes?
	12.	How do I recover when Power*Tools crashes from a moved or deleted library?
	13.	How do I resolve an Isolated Brach error message?
	14.	How do I recover a project that’s been corrupted somehow?
	15.	I’m trying to download the latest version of PTW from our website and I get the error "Authorization Required" error message and it doesn’t accept my Password.
	16.	What does the following error code mean?
	17.	What is the best way to convert older version projects to the latest version if the projects are stored on a network drive?
	18.	How can we “undo” something on the one-line?
	19.	Problems converting projects between different versions of the software
	20.	PTW Fonts and Installation

	Category: Import/Export
	1.	How do I fix a PTW software crash when I attempt to export a Crystal Report file?
	2.	How do I import the Captor DOS project into PTW?
	3.	How do I import the Dapper DOS project into PTW?

	Category: Modeling
	1.	How do I model a series reactor?
	2.	How do I access my custom symbols in PTW?
	3.	How do I add new symbols to PTW?
	4.	How do I model an Uninterruptible Power Supply (UPS) in Power*Tools?
	5.	How do I model an Induction Generator on PTW?
	6.	How do I model a reduced voltage starter when performing an Impact Motor Starting study using the Load Flow?
	7.	If I’ve entered a group of motors at various buses in my system but I only want 60% of them running at a time, how do I enter that?

	Category: Reports
	1.	How do I generate a report that will list all of my components?
	2.	How do I fix a CR Linking Problem?
	3.	How do I fix Crystal Report data errors?

	Category: Calculations
	1.	How is the induction motor startup current multiplication factor calculated?
	2.	How are the Connected Loads calculated for a group of loads?
	3.	Per Unit Impedance Calculation for Utility
	4.	Why is the calculated SLG fault higher than the calculated 3phase fault?
	5.	How do I calculate voltage drop across cable?
	6.	How do I calculate voltage drop across transformer?
	7.	The generator manufacturer says my generator will only put out so much SLG fault current (8.3kA), but PTW calculates a much higher SLG current, why?
	8.	Why is the calculated zero sequence impedance a negative value?

	Category: Demand Load
	1.	How are the Connected Loads calculated for a group of loads?

products

support

distributors