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Certain electrical power system designs need to ensure the selection and setting of protective devices cause the smallest possible portion of the system to be de-energized due to an abnormal condition. In a selectively coordinated system, only the circuit breaker that directly supplies the overloaded/faulted part of the system will trip, limiting the service interruption to only the circuit experiencing the problem and not shutting down the larger portion of the power system.
Selective Coordination Analysis Tool
The Selective Coordination Analysis Tool provides you with the ability to select combinations of Circuit Breakers that provide total selective coordination. This tool provides circuit breaker selections that are fully rated and fully selective.
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Selective Coordination Resources
White Papers
Most white papers are provided in .pdf format.
- Energy-Based Tripping and Its Effects on Selective Coordination
- Selective Coordination vs Arc Flash Requirements
- Selective Coordination - To What Level?
- Selectivity Guidelines For Square D® Panelboards
- Guide to Low Voltage Transformer Protection and Selective Coordination
- Guide to Power System Selective Coordination?
- Enhancing Short Circuit Selective Coordination with Low Voltage Circuit Breakers
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