Part ofmorsonPRAXISSwitching, faults and lightning create fast transients that set insulation and equipment ratings. We build detailed EMT models to capture overvoltages and meet NESO’s EMT requirements.
Fast electromagnetic transients from switching, faults and lightning determine the insulation levels and stresses equipment has to withstand. We build detailed EMT models in PSCAD to capture switching and temporary overvoltages, carry out insulation coordination to TGN 288E, and select and place surge arresters.
EMT modelling is now central to Grid Code compliance too: we deliver the manufacturer-validated EMT models and studies NESO requires under GC0141 and GC0168, including fault ride-through and control interaction. For reactor and cable switching we add TRV and RRRV checks to confirm the circuit breakers are correctly rated.
Tell us about your connection or compliance challenge and we’ll scope it with you.
Independent UK power systems consultancy — modelling, compliance studies and technical analysis for complex grid-connected projects.