ABB RELION REX640 Technical Manual page 1449

1MRS759142 C
REX640
Technical Manual
Source
2
ASGCSYN
(SCB2)
ASCGAPC
Bus1
∆U, ∆F
ASNSCSYN
(NSCB1)
ASCGAPC
GUID-63B86D58-39B9-49E8-85A0-C6B8C72ACDB3 V1 EN
Figure 776: NSCB1 synchronization
Source
2
ASGCSYN
(SCB2)
ASCGAPC
ASNSCSYN
(NSCB1)
ASCGAPC
GUID-F9FA9F51-CE3D-4047-B6C4-4F2A0DFB854E V1 EN
Figure 777: NSCB3 synchronization
This function supports manual, semi-automatic and automatic synchronizing, which
adds flexibility in the user operation. In the manual synchronization, the matching is
done manually and the closing command is released from the function on user request.
In the semi-automatic synchronization, the matching is done automatically with
coordination from ASCGAPC and the closing command is released from the function
on user request. In the automatic synchronization, the matching is done automatically
with coordination from ASCGAPC and the subsequent closing command is released
from the function without user intervention.
This function output can be used to block the other functions in the power network to
ensure that only one CB is synchronized at a time. This logic has to be developed
outside the function block.
Source
1
ASGCSYN
(SCB1)
ASCGAPC
Bus2
ASNSCSYN
∆U, ∆F
(NSCB2)
NS_ASC_DAT ASCGAPC
Matching Start
Source
1
ASGCSYN
(SCB1)
ASCGAPC
∆U, ∆F
Start Matching
∆U, ∆F
ASNSCSYN
(NSCB2)
ASCGAPC
Section 9
Control functions
ASNSCSYN
(NSCB3)
ASCGAPC
Synchronize
ASNSCSYN
NS_ASC_DAT
(NSCB3)
ASCGAPC
1443