Rockwell Automation Publication 193-UM015E-EN-P - October 2015 309
Chapter 6
Protective Trip and Warning Functions
Introduction
This chapter provides detailed information about the protective trip and warning
functions of the E300™Electronic Overload Relay. The protective trip and
warning functions are organized into five sections:
• Cu
rrent-based
• Voltage-based
• Power-based
• Control-based
• Analog-based
This
chapter explains the trip and warning protection features of the E300 relay
and the a
ssociated configuration parameters.
Current-based Protection
The E300 relay digitally monitors the electrical current that is consumed by an
electric motor. This electric current information is used for the following
protective trip and warning functions:
• Overload Trip/Warning
• Phase Loss Trip
• Ground Fault Trip/Warning
• Stall Trip
• Jam Trip/Warning
• Underload Trip/Warning
• Current Imbalance Trip/Warning
• Line Under Current Trip/Warning
• Line Over Current Trip/Warning
• Line Loss Trip/Warning
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