Smart Analyzer®
PAGE 6 of 16
4.2.
Sensors set-up
Voltage measurement
The voltage measurement is done directly by connecting the Smart Analyzer® to neutral and
to each of the phases with wires of minimum 0.75 mm² section. The phases order is not
important, the Smart Analyzer® will restore it automatically in case of defect.
Down below, you will find the different possible situations.
In order to install the voltage probes, it is recommended to complete the
following steps in this order:
1)
Implement the cables routing.
2)
Connect the metering wires on the differential circuit breaker.
3)
Connect the metering wires on the dedicated terminal block (4
pins).
The neutral must be positioned on the far left. The phase order
may not be respected.
4)
Connect the terminal block to the Smart Analyzer®
The voltage metering inputs must be protected in upstream by a differential circuit
breaker 2A 3P+N.
The Smart Analyzer® is not suitable for facilities with IT neutral point connection,
except protection by a control relay of the voltage phase – ground or neutral- ground.
Never manipulate the terminal block (much less the metering wires) when they are in
contact with the potential to measure, in order to prevent any electrocution. In
particular, during the installation, install without fail the terminal block before
switching the metering wires on. On the contrary, when uninstalling, activate the cut-
off system before manipulating the box.