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1. General presentation
1.1 Role of instrument transformers
1.1.1 Electrical environment of high-voltage substations
High-voltage (HV) substations are the site of exceptional electrical and electromagnetic disturbances, due in particular to equipment switching. The lines are exposed to atmospheric discharges, and transmit rapid surges corresponding to the equipment coupled to them.
As a result, very high amplitudes of interference (several kiloamperes, several hundred kilovolts) are superimposed on the nominal current...
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General presentation
Theory and operation for AC measurements
