Where:
p
= the expected value of a distance to fault in percent
Z
x
= set test point on the test set
X0
= set zero-sequence reactance of a line
X1
= set positive-sequence reactance of a line
XM = set mutual zero-sequence impedance of a line
6.11.2.2
Completing the test
6.12
Testing metering functions
6.12.1
Pulse counter PCGGIO
The test of the Pulse counter function PCGGIO requires the Parameter Setting tool in
PCM600 or an appropriate connection to the local HMI with the necessary
functionality. A known number of pulses with different frequencies are connected to
the pulse counter input. The test should be performed with settings
Operation
=
Enable
or
Operation
=
Disable
and the function blocked or unblocked. The pulse counter
value is then checked in PCM600 or on the local HMI.
6.13
Exit test mode
The following procedure is used to return to normal operation.
1.
Navigate to the test mode folder.
2.
Change the
Enable
setting to
Disable
. Press the 'E' key and the left arrow key.
3.
Answer
YES
, press the 'E' key and exit the menus.
Section 6
1MRK 506 331-UUS A
Testing functionality
142
Commissioning Manual
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