Bus 1
Bus 2
CB1 52
(SESRSYN 1)
CB3 352
(SESRSYN 3)
CB2 252
(SESRSYN 2)
Line 1 Line 2
LN1 989 LN2 989
ANSI11000274.en.v1
ANSI11000274 V1 EN-US
Figure 57: Objects used in the voltage selection logic
11.11.1.5 Completing the test
M2377-1042 v5
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.11.2 Autorecloser for 1/2/3-phase operation SMBRREC (79)
M12400-2 v12
Verification of the auto recloser for single-phase, two-phase or three-phase auto reclosing attempts can
be considered to consist of two parts.
• One part to verify the internal logic and timing of the auto recloser
• One part to verify its interaction with the protection system
This section deals with verification of the auto recloser itself. However, it is practical to initiate the auto
recloser by activating a protection function, for example, by secondary injection tests.
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to verify settings".
The purpose of verification before commissioning is to check that entered selections, setting and
configuration render the intended result. The auto recloser is flexible with many options and facilities. At
commissioning only the selections and settings intended for use are verified. If one chooses to reduce
some time settings in order to speed up verification, be careful to set the auto recloser at intended
operational values at the end of the verification procedure. One such parameter is the tReset time that
must be timed out before a new test sequence can be performed.
The verification test is performed together with protection and trip functions.
Section 11 1MRK 504 165-UUS Rev. J
Testing functionality by secondary injection
248 Transformer protection RET670
Commissioning manual
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