Siemens SIMEAS P 7KG7550 Operating Instructions Manual page 36

For field wiring and installation, all national and local codes must be
adhered to.
During electrical installation, all rules and regulations
for power systems must be observed.
•
If current transformers are used, the secondary
connections of the current transformers must be short-
circuited before the current leads to the device are
interrupted.
•
The protective ground terminal of the device must be
connected to the
cubicle.
•
For connection of an auxiliary DC voltage, the correct
polarity must be used.
•
All of the terminals should be checked to verify proper
connections.
•
The polarities
transformers should be checked.
•
Before initial energization with supply voltage, the
device shall be situated in the operating area for at least
two hours to ensure temperature equalization and to
avoid humidity and condensation problems.
WARNING!
protective ground of the panel or
and phasing
34
of all instrument