ABB REL 551 2.3 Series Installation And Comissioning Manual page 125





Time delayed overcurrent protection
(TOC)
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Prepare the terminal for verification of settings as outlined in section "Preparing for
test" in this chapter.
To verify the settings the following fault type should be tested:
• One for a phase-to-earth fault
Ensure that the maximum continuous current of the terminal does not exceed four times
its rated value.
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Observe the maximum permitted overloading of the current cir-
cuits in the terminal.
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