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Galvanic and electromagnetic interference occurring at lightning stroke, short-circuit or equipment switching may result in damage or failure of microprocessor control systems of electric power stations and substations. The EMC problem is to limit interference; its solution starts with the design of grounding and shielding systems. To continue the works, [1,2] we would like to discuss impulse characteristics...
Calculations for earthing devices (ED) are formulated as chain-field-like problems. The chain-field model of ED, computing techniques and software (AutoCAD application) have been developed, the program makes possible the solution of the problems related to EMC of electric power substations.
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