11.5.10
Monitoring
Main menu/Test/Function test modes/Monitoring
Test of monitoring functions such as event counter and disturbance report.
11.5.11
Logic
Main menu/Test/Function test modes/Logic
Test of trip logic and event counter functions.
11.6
Function status
11.6.1
Differential protection
The quantities and measurements for differential protections are accessed via the
HMI paths provided below. The measurement outputs shown here include various
trip and start signals. The magnitude of the differential currents are shown here.
11.6.1.1
Generator differential protection GENPDIF
Main menu/Test/Function status/Differential protection/GeneratorDiff(PDIF,
87G)/GDP
Displays available instances of GENPDIF . The data available are trip signals, start
signals, block signal, bias current and differential currents.
11.6.1.2
Transformer differential protection, two winding T2WPDIF
Main menu/Test/Function status/Differential protection/
TransDifferential2Wind(PDIF,87T)/T2D
Displays available instances of T2WPDIF with several measured values each. The
data available here ranges from the general common trip signal to the magnitude of
the bias current. The magnitude of the second and fifth harmonic differential
current for all phases, block signals and start signals make up the bulk of the data
presented in this view.
11.6.1.3
Transformer differential protection, three winding T3WPDIF
Main menu/Test/Function status/Differential protection/
TransDifferential3Wind(PDIF,87T)/T3D
Displays up to two instances of T3WPDIF with several measured values each. The
data output here is identical to that shown in section
protection, two winding T2WPDIF"
of this document.
1MRK 502 014-UEN C
Section 11
Test the IED
65
Operator's manual
