Overview - ABB ProtectIT REL 551 2.5 Installation And Commissioning Manual

Differential protection terminal
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Overview

Chapter 7
Energising the terminal
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 energise the power supply to the terminal to start it up. This could be done in num-
ber of ways, from energising a whole cubicle to energising a single terminal. The user should
reconfigure the terminal to activate the hardware modules in order to enable the self supervision
function detect eventual hardware errors. Then the terminal time must be set. The self supervi-
sion function should also be checked to verify that the terminal unit operates properly. The user
could also check the software version, the terminals serial number and the installed modules and
their ordering number to ensure that the terminal is according to delivery and ordering specifi-
cations.
52

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