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Overview Chapter 7
Energizing the IED
1 Overview
Before the procedures in this chapter can be carried out the connection to external circuitry must
have been checked which ensures that the installation was made correctly.
The user must energize the power supply of the IED to start it up. This could be done in number
of ways, from energizing a whole cubicle to energizing a single IED. The user should reconfig-
ure the IED to activate the hardware modules in order to enable the self supervision function to
detect possible hardware errors. Then the IED time must be set. The self supervision function
(Diagnostics in HMI) should also be checked to verify that the IED unit operates properly. The
user could also check the software version, the IEDs serial number and the installed modules and
their ordering number to ensure that the IED is according to delivery and ordering specifications.
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