Eaton Cooper Power Series Installation, Operation And Maintenance Manual

Also see for COOPER POWER SERIES: Installation and operation instructions Installation instructions Installation instructions Installation and operation instructions Operation instructions

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Eaton Cooper Power Series Installation, Operation And Maintenance Manual Manual pdf 164 page image

Fault detectionThe fault detection feature will compare system load currentmeasured by the voltage regulator with a reference value,and determine if the load current rises above a defined faultcurrent threshold level for a defined period of time.The Fault Detection feature can be enabled using FC 640 onthe control HMI or by checking a box in the Fault Detectiondialog box in ProView NXG.Figure 56 Fault Detection settings dialog boxThe Fault Detection feature will enable the control tocompare system currents against three unique fault currentlevels. Each fault current level contain both a currentthreshold in amps and threshold timer in milliseconds.When the control detects that the system current level hasexceeded a defined fault current level and remains abovethat level for the time period defined by the ThresholdTimer, the control will record the fault current as an eventin the control's Sequence of Events recorder. When thefault current falls below the defined Recovery current levelfor the time period defined by the Recovery Timer, thecontrol will reset Fault Detection and record another eventindicating that the fault has ended. Fault Detection settingscan be made using the dialog box shown above (Figure 56)in ProView NXG or through the control HMI using functioncodes found in the control nested menu Features > FaultDetection. There is one set of Fault Detection settingswhich applies to all three voltage regulators when using amulti-phase control.It is also possible to record the total time duration of thefault events. The last fault event and longest fault event arerecorded with a date and time stamp which can be viewedusing the control HMI or in the Metering Fault Detectiondialog box (Figure 54) in ProView NXG. Fault Detectionevent recording is available for up to three connectedvoltage regulators when using a multi-phase control.Figure 57 Metering Fault Detection dialog box156INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018CL-7 Voltage Regulator Control