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Description
2.3 Protection system
SIMARIS curves
The Siemens software tool SIMARIS curves can be used to display the time-current
characteristic for one or more devices.
For more information on SIMARIS curves, refer to the Internet
(https://www.siemens.com/simaris).
2.3.5
Description of the protective functions
2.3.5.1
General description
Depending on the electronic trip unit and the options selected, the following protective
functions are available:
• Long time LT
• Short time ST
• Instantaneous short-circuit protection INST
• Neutral protection N
• Ground-fault alarm
• Ground-fault protection GF
• Ground-fault protection GF Hi-Z
48
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
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