Woodward HighPROtec MCDLV4, Manual

Page: 490 / 1275

Module: Protection (Prot)
Signal Description
I dir rev Signal: Phase current failure reverse direction
I dir n poss Signal: Phase fault - missing reference voltage
IG calc dir fwd Signal: Ground fault (calculated) forward
IG calc dir rev Signal: Ground fault (calculated) reverse direction
IG calc dir n poss Signal: Ground fault (calculated) direction detection not possible
IG meas dir fwd Signal: Ground fault (measured) forward
IG meas dir rev Signal: Ground fault (measured) reverse direction
IG meas dir n poss Signal: Ground fault (measured) direction detection not possible
Remote available Signal: Protection of Remote Device is available
Protection Module Values
Parameter Description
FaultNo Fault number
No of GridFaults Number of grid faults: A grid fault, e.g. a short circuit, might cause several
faults with trip and autoreclosing, each fault being identified by an
increased fault number. In this case, the grid fault number remains the
same.
Trip Initial reason of trip. It is transferred as an integer value in the MODBUS
register 5004 and essentially corresponds to the “Trip” entry in the fault
record, i. e. to the name of the protective module that tripped first. Look up
the definition of these integer values (i. e. the mapping trip code number--
>module name) in the “Cause of Trip” table within the SCADA
documentation.
Value Description Menu path
Direction I The detected direction of the phase current flow. [Operation
/Measured Values
/Direction detection]
Direction IG meas. The detected direction of the current flow of the
measured residual current.
[Operation
/Measured Values
/Direction detection]
Direction IG calc. The detected direction of the current flow of the
calculated residual current. [Operation
/Measured Values
/Direction detection]
490 MCDLV4 DOK-HB-MCDLV4-2E