Hitachi REC670, Руководство по вводу в эксплуатацию

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Check that the distance-to-fault value displayed on the HMI complies with Equation 51 ,
Equation 52 and Equation 53
p
Z
x
X1
-------
100
×
=
EQUATION123 V1 EN-US
(Equation 51)
in % for two- and three-phase faults
x
3 Z
p 100
X0 2 X1
×
= ×
+ ×
EQUATION124 V1 EN-US
(Equation 52)
in % for single-phase-to-earth faults
p
3 Z
×
x
X0 2 X1 XM
± ×
+
---------------------------------------------
100
×
=
EQUATION125 V1 EN-US
(Equation 53)
in % for single-phase-to-earth faults with mutual zero sequence current.
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
11.13.14.4 Completing the test
M14955-84 v6
Continue to test another function or end the test by changing the TESTMODE setting to Off . Restore
connections and settings to the original values, if changed for testing purposes.
11.14 Metering
SEMOD53588-1 v1
11.14.1 Pulse-counter logic PCFCNT
M13405-2 v7
The test of the Pulse-counter logic function PCFCNT 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 = On or Operation = Off and the function blocked or unblocked.
The pulse counter value is then checked in PCM600 or on the local HMI.
11.14.2 Function for energy calculation and demand handling
ETPMMTR
GUID-4FC03017-93BD-4B30-A874-487BF89971D5 v1
Prepare the IED for verification of settings as outlined in section ”Overview “ and section ”Preparing
for test“ in this chapter.
1MRK 511 403-UEN Rev. L Section 11
Testing functionality by secondary injection
Bay control REC670 201
Commissioning manual
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