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(d) Current input: The external CT should be applied when the input current
exceeds the rated value. Accuracy of external CT should be equal to or better
than measurement accuracy of meter. If other meters are also connected to a
same CT, please connect them in serial. Before removing the current input
wires, the primary circuit loop of CT should be cut off, or the secondary circuit
loop should be shorted. For easy maintenance, it is suggested to use the
terminal blocks;
(e) Make sure phase sequence and direction of three-phase voltage and
current are consistent with each other. Otherwise, the values and signs will be
incorrect.
