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Page 10
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3.2
Voltage Connections (Medium Voltage with 2 PTs)
Potential Transformers (PTs) need to be used to monitor medium voltage applications. Normally two delta PTs
are used without a neutral connection. This section shows the wiring connection for these two PTs.
WARNING
Extreme care should be exercised with medium voltage
applications. The connection diagram shown below is a
simplified connection diagram only. Connect the PTs strictly
according to national code and as recommended by the PT
manufacturer.
In-line fuse clips. See
section 4.1 for fuse
details.
Load
→
Source
A
N
B
C
Primary fusing shown is illustrative
only. Actual fusing is normally an
integral part of the PT itself.
If present, terminate GROUND here
No NEUTRAL Connection
Silver Voltage screws.
Terminate voltage connections
here.
Use wiring according to national
code and as recommended by the
PT manufacturer.