SKM POWER*TOOLS FOR WINDOWS 9.0
Power System Modelling
As part of our support service for SKMs Power*Tools for Windows (PTW), we can verify any power system models you have created in PTW. We can also offer advice on how to get the best results from your power systems studies and help you to explain any results which seem anomalous or inconsistent.
Past queries have included:
Arc energy calculations appear to show a much longer trip time than expectedPower systems earthed through earthing (zig-zag) transformers appear to show zero earth fault current on some parts of the networkCalculations will not converge / PTW cannot find the result to a simulationThe system uses protective devices which are not listed in the standard PTW devices library
If you have any technical problems with the PTW program itself, please refer to our FAQ section.
Additionally, CEE Relays can perform systems studies and produce reports on your behalf. Possiblities include:
Creating a model of your system for you to perform your own studiesProtection studies to check coordination of your protective devicesArc Flash studies to determine safe working distances and PPE required to work safelyHarmonic studies (particularly useful for system designs which are intended for exporting power to the UK electricity grid).
CEE can also use PTW models to answer more general questions:
How will my protective devices need to change if the utility fault level increases?Does my existing insfrastructure have sufficient capacity to add a generator?How many large motors can I run at the same time without overloading the network?
