Circuit interrupter with energy management functions

Details Circuit interrupter with energy management functions Circuit interrupter with energy management functions

H - Electricity

02

H

348/26

H02H 3/08 (2006.01) G01R 21/133 (2006.01) H02H 3/42 (2006.01)

Patent

CA 1149920

68 49,002 ABSTRACT OF THE DISCLOSURE A circuit interrupter includes a digital trip unit containing a microprocessor. me circuit interrupter also includes current transformers for sensing current flow through the contacts of the interrupter and for providing operating power to the trip unit. The current transformers monitoring current flow through the breaker and control potentiometers receiving operator-entered values of the product of line voltage and power factor are connected to the microprocessor to supply it with the values needed to compute real power flow through the in- terrupter and to display the numeric value of this power flow. The power flow is compared to an operator-entered limit value of peak demand power, and an alarm signal is generated whenever power flow exceeds the limit value peak demand. Integration capability is also provided to cal- culate energy flow through the contacts in megawatt hours and to present the numeric value of this energy flow.

374716

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