Huawei DTSU666-HW/YD Series Quick Manual page 9

Smart power sensor
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Smart Dongle networking
Three-phase four-wire connection
(1) Shield layer of the signal cable
Three-phase three-wire connection
Please ensure that the
ground cable is installed
securely. Poor grounding
may cause electric shocks.
You need to set
parameters after cable
connections are
complete. For details, see
section 4 "Display and
Parameter Settings".
For the three-phase
three-wire connection,
phase B does not need to
connect to a current
transformer.
(1) Shield layer of the signal cable
8

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