SINT
ENGINEERING CONSULTING
AND SOFTWARE
Over and under Ground System Analysis in the Frequency Domain
XGSA_FD can be used for advanced electromagnetic interference and fields analysis of aboveground and underground systems in the frequency domain from DC to about 100 MHz and is commonly used for the evaluation of interference between power lines or cables and pipelines or telecommunication systems. This module can also calculate the electromagnetic force on conductors.
XGSA_FD contains GSA_FD and can be used also for advanced grounding systems analysis.
XGSA_FD includes the tools SRA and SA for soil resistivity analysis, soil resistivity seasonal analysis and multilayer soil modelling.
XGSA_FD is highly appreciated for its power and accuracy and for the wide field of application.
GENERAL DESCRIPTION
XGSA_FD extends the GSA_FD application field to the overhead systems.
Also XGSA_FD is based on a PEEC full wave numerical model and can be applied in general conditions with same conductors and in the same frequency range of GSA_FD.
Using screened conductors XGSA_FD can simulate gas insulated systems like GIS and GIL.
XGSA_FD can also manage catenary conductors and bundle conductors too (solid, hollow or stranded and coated or bare) and can take into account sources where potential or leakage current and longitudinal current are forced and independent by other conditions
XGSA_FD is a multipurpose software and its use is not limited to specific cases. XGSA_FD application field includes grounding system analysis but is oriented in particular way to solve electromagnetic compatibility or interference problems due to resistive, capacitive and inductive coupling in air or in the earth.
For instance, XGSA_FD can evaluate electromagnetic interference between overhead or underground power lines and installation as pipelines, railways or communications lines.
XGSA_FD is also useful to calculate magnetic and electric fields due to underground or overhead electrodes (grounding systems, buried cables, overhead power lines) and can be used to investigate the effectiveness of passive loop mitigation systems.
Moreover XGSA_FD can calculate the electromagnetic force (Lorentz force) on conductors.
Finally, XGSA_FD can consider Surge Protective Devices.
XGSA_FD integrates also some powerful tools for the evaluation of the corona effects (power losses and radiofrequency interference) and the evaluation of the electromagnetic force effects on busbars and supports.
INPUT DATA(in addition to GSA_FD)
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Additional Electrical data (e.g. conductors with forcer potentials or leakage currents or longitudinal current, additional longitudinal and transverse impedances, etc.)
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Additional Geometrical data (e.g. overhead system layout and topology of all electrodes (up to 999), catenary constant, bundle diameter, bundle conductors number, conductor conductors section, coating thickness, material properties etc.)
OUTPUT RESULTS(in addition to GSA_FD)
- Distribution of leakage current, longitudinal current, potential, electromotive force and complex power on the overhead electrodes with 1D (magnitude, real and imaginary), 2D and 3D graphical representation
- Magnetic field distributions on arbitrarily oriented straight line or horizontal or vertical rectangular area with 1D, 2D and 3D coloured graphic representations, for individuation of safe and hazardous areas
- Magnetic flux across horizontal or vertical rectangular areas, for individuation of induced EMF and evaluation of separation distance
- Electric field distributions on arbitrarily oriented straight line or horizontal or vertical rectangular area with 1D, 2D and 3D coloured graphic representations, for individuation of safe and hazardous areas
- Distribution of electromagnetic force on underground and overhead electrodes with 1D, 2D and 3D graphical representation
MAIN FEATURES (in addition to GSA_FD)
- Analysis of overhead (and/or underground) systems of any shape, with choice of the total number of elementary sources
- Possibility to analyse up to 999 distinct overhead (and/or underground) electrodes on the same calculation
- Possibility to consider energization with sources, that are conductors with forced potentials or leakage currents and longitudinal currents
- Possibility to consider additional longitudinal and transverse impedances or Surge Protective Devices
- Possibility to calculate electromagnetic force and to analyse their effects on busbars and supports
- Possibility to analyse overhead straight or catenary spans of single or bundle conductors
- Possibility to analyse the power losses and the radiofrequency interferences related to the corona effects
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