Overview - ABB ProtectIT REL 551 2.5 Installation And Commissioning Manual

Differential protection terminal
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Overview

Chapter 14
Verifying the internal configuration
1
Overview
Before start of this process, all individual devices that are involved in the fault clearance process
must have been tested as individuals and set in operation. The breaker must be ready for an
open-close-open cycle.
The shaping of the test process is dependent on the complexity of the design of the switchyard.
Hereby follows some items which could be used as guidelines.
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