Testing The Synchrocheck Check - ABB REQ650 1.3 IEC Commissioning Manual

Section 7
Testing functionality
7.7.1.2

Testing the synchrocheck check

During the test of SESRSYN for a single bay arrangement, these voltage inputs are used:
U-Line
U-Bus
Testing the voltage selection for single 1 1/2 CB arrangements
At test of the SESRSYN function for a 1½ CB diameter the following alternative voltage inputs
can be used for the three SESRSYN (SESRSYN 1, SESRSYN 2, SESRSYN 3) functions. These three
SESRSYN functions can either be in one, two or three different IEDs. Table
scenario when SESRSYN 1, SESRSYN 2 and SESRSYN 3 all are in the same IED. If SESRSYN 3 is in
another IED, Bus1 will be considered as Bus2 and Line2 as Line1. The voltage is selected by
activation of different inputs in the voltage selection logic as shown in table
Table 4:
SESRSYN
SESRSYN 1
(Operates on
CB1QA1)
SESRSYN 2
(Operates on
CB2QA1)
SESRSYN 3
(Operates on
CB3QA1)
80
UL1, UL2 or UL3 line 1 voltage inputs on the IED
Bus voltage input on the IED
Voltage selection logic
CBConfig Section to
setting be
synchroniz
ed
1 ½ bus CB Bus1 –
Line1
Bus1 –
Line2
Bus1 –
Bus2
Tie CB Line1 –
Line2
Bus1 –
Line2
Bus2 –
Line1
Bus1 –
Bus2
1 ½ bus Bus2 –
alt. CB Line2
(mirrored)
Bus2 –
Line1
Bus2 –
Bus1
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Activated Activated Activated
B1QCLD B2QCLD LN1QCLD
input on input on input on
IED from IED from IED from
CB2QA1
CB2QA1 CB3QA1
CB1QA1
CB3QA1
CB1QA1 CB3QA1
CB2QA1
CB2QA1 CB1QA1
1MRK 505 293-UEN B
GUID-12E7DA63-FE04-4C83-9BA6-34818C510DB8 v2
4 describes the
4 and figure 15.
Activated Indication
LN2QCLD from
input on SESRSYN
IED from on IED
LN1QB9 B1SEL,
LN1SEL
LN2QB9 B1SEL,
LN2SEL
B1SEL,
B2SEL
LN1QB9 LN2QB9 LN1SEL,
LN2SEL
LN2QB9 B1SEL,
LN2SEL
LN1QB9 B2SEL,
LN1SEL
B1SEL,
B2SEL
LN2QB9 B2SEL,
LN2SEL
LN1QB9 B2SEL,
LN1SEL
B1SEL,
B2SEL
Breaker protection REQ650
Commissioning manual
M2377-132 v7