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                                                  Power distribution

                                                  Shed non-priority loads Automatically

                                                   
                                                   

                                                  Main Drivers

                                                  “I want to switch to a more cost-effective contract with my electric utility. I can shed non-critical loads to make sure I stay within my utility rate block, but I can’t afford sudden power cuts.”

                                                  Solution in brief

                                                  Design your electrical system around Compact NSX circuit breakers

                                                   

                                                  Compact NSX circuit breakers allow you to manage reflex load shedding: the automatic shedding of specific loads.
                                                  The Compact NSX circuit breaker with integrated Micrologic 5.2 E electronic trip unit sends the reflex load shedding command. The trip unit measures I, V, P and E, and produces the appropriate alarms. Each alarm is associated with a load shedding trigger setting and a deactivation setting, each with time delay. The reflex load shedding order is sent via the Compact NSX circuit breaker’s SDx output module.

                                                    PT: Pick-up threshold
                                                  PD: Pick-up time delay
                                                  DT: Drop-out threshold
                                                  DD: Drop-out time delay
                                                  Alarm: activation zone (in blue)
                                                  Each alarm is associated with a load-shedding trigger setting and a deactivation setting.

                                                  Benefits for End Users

                                                  > Save up to 10% off your energy bills
                                                  Subscribe to a more cost-effective utility contract and avoid costly utility rate-block overrun penalties


                                                  > Get the most out of your investment and enjoy greater reliability with the Compact NSX circuit
                                                  breaker, integrating both protection and measurement capabilities


                                                  > Increase power availability by preventing overload tripping

                                                  Benefits for professionals

                                                  + Easy design and use
                                                  • Limited part numbers for easy selection and ordering
                                                  • No need for a current transformer
                                                   
                                                  + Easy installation and maintenance
                                                  • A single reference for the SDx output module
                                                  • Easy configuration via user-friendly RSU* software, your PC and a maintenance module—available
                                                    on order as part of the maintenance ki
                                                  • Easy testing using the LSU* software, your PC, and the maintenance module
                                                  * Free download available online at www.schneider-electric.com

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                                                  Application to shed non-priority loads Automatically

                                                   

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