Abstract
In earth impedance measurements, the mutual coupling between current and voltage leads can introduce significant errors in the measured impedance values. This paper examines the effect of mutual coupling by simulating the impedance measurement with the fall-of-potential method. The earthing system consists of an infinite transmission line energised at its midpoint. The effect of mutual coupling is investigated at power frequency for different soil resistivities and lead spacing. Field measurements performed on a tower transmission line are presented and the effect of mutual coupling is quantified.
| Original language | British English |
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| Pages | 959-963 |
| Number of pages | 5 |
| State | Published - 2002 |
| Event | UPEC 2002, 37th International Universities' Power Engineering Conference - Stafford, United Kingdom Duration: 9 Sep 2002 → 11 Sep 2002 |
Conference
| Conference | UPEC 2002, 37th International Universities' Power Engineering Conference |
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| Country/Territory | United Kingdom |
| City | Stafford |
| Period | 9/09/02 → 11/09/02 |