ABB RED650 - Section 12 Control; Synchrocheck, Energizing Check, and Synchronizing SESRSYN; Identification; Functionality

Section 12 Control
12.1 Synchrocheck, energizing check, and synchronizing
SESRSYN
IP14558-1 v4
12.1.1 Identification
M14889-1 v4
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Synchrocheck, energizing check, and
synchronizing
SESRSYN
sc/vc
SYMBOL-M V1 EN-US
25
12.1.2 Functionality
M12480-3 v16
The Synchronizing function allows closing of asynchronous networks at the correct
moment including the breaker closing time, which improves the network stability.
Synchrocheck, energizing check, and synchronizing (SESRSYN) function checks
that the voltages on both sides of the circuit breaker are in synchronism, or with at
least one side dead to ensure that closing can be done safely.
SESRSYN function includes a built-in voltage selection scheme for double bus and
1½ breaker or ring busbar arrangements.
Manual closing as well as automatic reclosing can be checked by the function and
can have different settings.
For systems, which can run asynchronously, a synchronizing feature is also
provided. The main purpose of the synchronizing feature is to provide controlled
closing of circuit breakers when two asynchronous systems are in phase and can be
connected. The synchronizing feature evaluates voltage difference, phase angle
difference, slip frequency and frequency rate of change before issuing a controlled
closing of the circuit breaker. Breaker closing time is a setting.
1MRK 505 394-UEN A Section 12
Control
Line differential protection RED650 2.2 IEC 301
Technical manual