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This paper presents two methods for determining the ratio error and the phase displacement of a protective current transformer (PCT) with a transformation ratio of 10 kA/1 A and a measuring current transformer (MCT) with a transformation ratio of 20 kA/5 A. The primary conductor passed by a current (10 or 20 kA) placed in the center of the toroid is replaced by a current loop with ten turns placed...
This paper presents two methods for determining the ratio error and phase displacement of an instrument current transformer (ICT) with transformation ratio 20 kA/5 A. In the first case, the primary conductor passed by a current 20 kA placed in the centre of the toroid is replaced by a current loop with 10 turns placed in the centre of the toroid. In the second case, the conductor is replaced by 10...
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