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1MRK 506 377-UEN Rev. L
Information and material for the verification:
•
Protection or control unit, IED, configured and with settings entered.
•
Configuration diagram for the IED
•
Terminal diagram for the IED, or plant circuit diagram including the IED
•
Technical reference manual for the IED
•
IED test set for secondary injection
•
Means to indicate, measure and record operation and times, for example an event recording
facility
•
A bi-stable relay (BR) or two auxiliary relays to simulate a CB
•
Two push-buttons (SC, ST) to operate the BR and a change-over switch (SRY) to simulate
CBREADY
•
Possibly a switch simulation the synchronizing check SESRSYN condition
IED
CLOSECB
Trip
CBCLOSED
CBREADY
IEC04000202 V3 EN-US
Figure 33:
10.9.2.1
Preparation of the verification
1.
Check the function settings on the local HMI under Main menu/Settings /IED Settings/
Control /Autorecloser79,5(0–>1)/SMBRREC:x(79,5(0–>)):x
If any timer settings are reduced to speed up or facilitate the testing, they shall be set to normal
after testing. A temporary label on the IED can be a reminder to restore normal settings after
which a verification test should be performed.
2.
Decide if a synchrocheck function SESRSYN shall be included in the test.
If SESRSYN as an internal function or external device is not operated by the injection, input
signal SYNC must be connected as a permanent high signal or controlled by a switch.
3.
Read and make notes of the reclosing operation counters on the local HMI under Main menu /
Test/Function status /Control/AutoRecloser79,5(0–>1) /SMBRREC(79,5(0–>1)):x
Railway application RER670
Commissioning manual
Simulating the CB operation by a bi-stable relay/breaker simulator and manual
switches
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Testing functionality by secondary injection
BR
SC
ST
SRY
To test
set
IEC04000202-3-en.vsd
Section 10
+
-
M12400-40 v8
127
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