Hitachi RED670 Commissioning Manual page 216

Section 11
Testing functionality by secondary injection
1. Connect the analog signals to the voltage inputs, in pair of two for U1 and U2. (Inputs U3PBB1,
U3PBB2, U3PLN1, U3PLN2)
2. Activate the binary signals according to the used alternative. Verify the measuring voltage on
the synchronizing check function SESRSYN. Normally it can be good to verify synchronizing
check with the same voltages and phase angles on both voltages. The voltages should be
verified to be available when selected and not available when another input is activated so
connect only one voltage transformer reference at each time.
3. Record the voltage selection tests in a matrix table showing read values and AUTOSYOK/
MANSYOK signals to document the test performed.
Testing the voltage selection for 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, 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 40:
SESRSYN
SESRSYN 1
(Operates on
WA1_QA1)
SESRSYN 2
(Operates on
TIE_QA1)
SESRSYN 3
(Operates on
WA2_QA1)
210
Voltage selection logic
CBConfig Section to
setting be
synchroniz
ed
1 ½ bus CB WA1 –
LINE1
WA1 –
LINE2
WA1 –
WA2
Tie CB LINE1 –
LINE2
WA1 –
LINE2
WA2 –
LINE1
WA1 –
WA2
1 ½ bus alt. WA2 –
CB LINE2
(mirrored)
WA2 –
LINE1
WA2 –
WA1
© 2017 - 2022 Hitachi Energy. All rights reserved
Activated Activated Activated
B1QCLD B2QCLD LN1QCLD
input on input on input on
IED from IED from IED from
TIE_QA1
TIE_QA1 WA2_QA1
WA1_QA1
WA2_QA1
WA1_QA1 WA2_QA1
TIE_QA1
TIE_QA1 WA1_QA1
1MRK 505 378-UEN Rev. K
GUID-12E7DA63-FE04-4C83-9BA6-34818C510DB8 v4
40 describes the
40 and figure 53.
Activated Indication
LN2QCLD from
input on SESRSYN
IED from on IED
LINE1_QB B1SEL,
9 LN1SEL
LINE2_QB B1SEL,
9 LN2SEL
B1SEL,
B2SEL
LINE1_QB LINE2_QB LN1SEL,
9 9 LN2SEL
LINE2_QB B1SEL,
9 LN2SEL
LINE1_QB B2SEL,
9 LN1SEL
B1SEL,
B2SEL
LINE2_QB B2SEL,
9 LN2SEL
LINE1_QB B2SEL,
9 LN1SEL
B1SEL,
B2SEL
Line differential protection RED670
Commissioning manual