Testing the voltage selection for 1 1/2 CB arrangements
GUID-12E7DA63-FE04-4C83-9BA6-34818C510DB8 v4
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, WA1 will be considered as WA2 and LINE2 as LINE1. The voltage is selected by
activation of different inputs in the voltage selection logic as shown in table
Table 33: Voltage selection logic
SESRSYN
CBConfig
setting
Section to
be
synchroniz
ed
Activated
B1QCLD
input on
IED from
Activated
B2QCLD
input on
IED from
Activated
LN1QCLD
input on
IED from
Activated
LN2QCLD
input on
IED from
Indication
from
SESRSYN
on IED
SESRSYN 1
(Operates on
WA1_QA1)
1 ½ bus CB
WA1 –
LINE1
LINE1_QB
9
B1SEL,
LN1SEL
WA1 –
LINE2
TIE_QA1
LINE2_QB
9
B1SEL,
LN2SEL
WA1 –
WA2
TIE_QA1
WA2_QA1
B1SEL,
B2SEL
SESRSYN 2
(Operates on
TIE_QA1)
Tie CB
LINE1 –
LINE2
LINE1_QB
9
LINE2_QB
9
LN1SEL,
LN2SEL
WA1 –
LINE2
WA1_QA1
LINE2_QB
9
B1SEL,
LN2SEL
WA2 –
LINE1
WA2_QA1
LINE1_QB
9
B2SEL,
LN1SEL
WA1 –
WA2
WA1_QA1
WA2_QA1
B1SEL,
B2SEL
SESRSYN 3
(Operates on
WA2_QA1)
1 ½ bus
alt. CB
(mirrored)
WA2 –
LINE2
LINE2_QB
9
B2SEL,
LN2SEL
WA2 –
LINE1
TIE_QA1
LINE1_QB
9
B2SEL,
LN1SEL
WA2 –
WA1
TIE_QA1
WA1_QA1
B1SEL,
B2SEL
Section 12
1MRK 502 067-UEN B
Testing functionality by secondary injection
210
Commissioning manual