Table of Contents
Advertisement
1MRK 506 377-UEN Rev. L
10.9.7
Transformer energizing control XENCPOW
Prepare the IED for verification of settings outlined in Section
10.9.7.1
Verifying the signals and settings
The voltage injection can be done using a common test equipment.
Verifying the high and low voltage settings ULowLimit and UHighLimit
1.
Supply the IED with rated voltage value.
2.
Decrease the voltage slowly and wait for 300 ms until the ULOW signal appears.
3.
Compare the voltage value with the set voltage low limit value.
4.
Increase the voltage slowly until the ULOW signal disappears.
5.
Compare the reset value to the set voltage low limit value.
6.
Increase the voltage further until the UHIGH signal appears.
7.
Compare the voltage value with the set voltage high limit value.
8.
Decrease the voltage slowly until the UHIGH signal disappears.
9.
Compare the reset value to the set voltage high limit value.
Verifying the circuit breaker operate time setting tBreaker
1.
Supply the IED with rated voltage value.
2.
Ensure that the settings in the IED are appropriate, especially the UHighLimit and ULowLimit
settings.
3.
Set an appropriate value for the tBreaker setting based on the circuit breaker characteristics.
4.
Activate the START input and wait for the CLOSECB output signal.
5.
Check in the captured disturbance file by the IED that the time difference between the
appearance of the CLOSECB output and the voltage peak is equal to the set tBreaker time.
Verifying the pulse duration (tPulse) of output CLOSECB
1.
Supply the IED with rated voltage value.
2.
Ensure that the settings in the IED are appropriate, especially the UHighLimit, ULowLimit and
tBreaker settings.
3.
Set the appropriate value for the tPulse setting based on the circuit breaker characteristics.
4.
Activate the START input and wait for the CLOSECB output signal.
5.
Once the CLOSECB output signal appears wait until it disappears.
6.
Compare the time between the CLOSECB appearance and disappearance with the set pulse
duration.
10.9.7.2
Completing the test
Continue to test another function or end the test by changing the TestMode setting to Off. Restore
connections and settings to their original values, if they were changed for testing purposes.
10.10
Scheme communication
10.10.1
Scheme communication logic for distance or overcurrent
protection ZCPSCH
Prepare the IED for verification of settings as outlined in section
section
Railway application RER670
Commissioning manual
"Preparing for test"
in this chapter.
© 2017 - 2022 Hitachi Energy. All rights reserved
Testing functionality by secondary injection
GUID-86397338-8127-4829-8F8F-2F46589D3A1F v1
"Preparing the IED to verify
GUID-06B83982-6C5C-4036-B91B-F6AD37A00187 v1
GUID-281E55ED-B3FD-41E6-B895-6F537BD66087 v2
GUID-3211FF6E-6BC8-4F65-9C36-29D23B4C1869 v2
GUID-5009E500-D4E6-4677-9FEE-E0A8BE067DA5 v2
GUID-E74572D9-68F8-4706-9EC8-B14FB0A80E45 v1
"Requirements"
and
Section 10
settings".
SEMOD53569-1 v1
M13868-2 v7
131
Advertisement
Table of Contents
