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ABB RELION REX640 - Page 754

ABB RELION REX640
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Figure 425: Connection of the current transformers of Type 1. The connected phase
currents and the neutral current have opposite directions at an external earth-fault
situation.
Figure 426: Connection of the current transformers of Type 1. The connected phase
currents and the neutral current have opposite directions at an external earth-fault
situation.
Protection functions
1MRS759142 F
754 REX640
Technical Manual

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