Installation And Uninstallation; Basic Information For Connecting Meter; Connection With 3 Phases And Neutral; Connection With 3 Phases Without Neutral (Aron Circuit) - Landis+Gyr E650 Series User Manual

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Installation and uninstallation

4.1

Basic information for connecting meter

4.1.1

Connection with 3 phases and neutral

Neutral
4.1.2

Connection with 3 phases without neutral (Aron circuit)

4.2

Mounting the meter

© Landis+Gyr
This section describes the installation and connection of meters for direct
connection. In addition, the necessary steps for checking the connections,
commissioning of the meter and the final functional check are described as
well as the uninstallation.
Dangerous voltage
Dangers can arise from live electrical installations to which the meters are
connected. Touching live parts is dangerous to life. All safety information
should therefore be strictly observed without fail.
It is recommended to use the following circuits whenever possible for
connecting the meter to the various voltage levels.
L2
L1 L3 N
Connecting
fuses
Consumer
fuses
Figure 40. Connection with 3 phases and neutral
The neutral is normally looped through terminals 10 and 12. Some power
supply companies, however, make a simple connection between terminal
10 or 12 and the neutral. This avoids possible contact errors in the neutral
conductor.
A version ZFD300xT for the rarely encountered three-phase networks
without neutral with 3 x 230 V is not available.
Dangerous voltage on conductors
The connecting conductors at the point of installation must be voltage-free
for installation of the meter. Contact with live components is dangerous to
life. The relevant supply fuses should therefore be removed and kept in a
safe place until finishing work, so that they cannot be re-inserted by other
persons unnoticed.
When you have identified the correct meter position for mounting the meter,
it should be mounted as follows on the meter board or similar device
provided for this purpose:
1 2 3 4 6 7 9 10 11 12
D000030108 en m – E650 Series 3 – ZMD300AT/CT – User Manual
Installation and uninstallation
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