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(3)
Three-phase measuring, three conductors, unbalanced load, with
(4)
Three-phase measuring, three conductors, balanced load, without
voltage transformers, with two current transformers. (ARON) voltage transformers, with one current transformer.
Connection type ARON Connection type 3PH BAL
(5)
Single-phase measuring, two conductors, without voltage transformers,
(6)
Three-phase measuring, four conductors, balanced multiple loads,
with one current transformer. with three current transformers.
Connection type 1PH Connection type 3PH ML BAL
(7)
Single-phase measuring, two conductors, without voltage transformers,
(8)
Two-phase measuring, three conductors, unbalanced loads, without
with one current transformer. voltage transformers with two current transformers.
Connection type 1PH ML Connection type 2PH 3W