8
IMPORTANT:
The phase connected to each
phase input terminal
must match the phase being monitored
by the respective CT, or the meter will not generate accurate measurements.
Upstream protection devices must be selected such that the cable gauge for the reference inputs to
the SS9005 do not exceed the maximum gauge indicated in the technical specifications.
The three
phase input terminals
, marked ‘A’, ‘B’ and ‘C’, are shown in the image above.
IMPORTANT:
Ensure the sources of the reference phases are isolated before performing these steps.
The SS9005 Mini Three Phase Meter is not rated as a protection device and may only be
connected to a circuit that is protected up-stream by an approved circuit breaker.
The maximum voltage permitted between the Neutral (‘N’) terminal and any of the phase
input terminals (‘A’, ‘B’, or ‘C’) is 240VAC. Exceeding this limit may cause permanent
damage to the product. Ensure that the Neutral wire is connected correctly before
powering on the device.
1.
Mount the device in the switchboard.
2.
Wire the Current Transformers (CTs) to the device, taking care to match the coloured CT
leads with the appropriate "CTX " (black) and "CTX " (white) terminals.
3.
Clip each CT on to the target load conductor, ensuring that the arrow on the CT points
towards
the load (away from the grid). If monitoring a generator, ensure the arrow points
towards
the generator (away from the grid).
4.
Connect the output of a MCB, RCD, or other protection device to each of the required phase
reference terminals of the Mini Three Phase Meter, and a neutral line to the “Neutral”
