Autosynchronizer For Generator Breaker Asgcsyn - ABB RELION REX640 Technical Manual

1MRS759142 C
9.6
9.6.1
9.6.2
9.6.3
REX640
Technical Manual

Autosynchronizer for generator breaker ASGCSYN

Identification
Function description
Autosynchronizer for generator breaker
Function block
GUID-FF051425-11DC-48B1-9BD2-3FF45116C3B9 V1 EN
Figure 749: Function block
Functionality
The autosynchronizer for generator breaker function ASGCSYN checks the
conditions across the circuit breaker from generator and bus side and issues the pulse
commands to the automatic voltage regulator (AVR) and prime mover governor to
match the voltage and frequency conditions if required. Once the synchronization
check and close CB conditions are fulfilled, the function gives permission to close the
circuit breaker. ASGCSYN includes the functionality of energizing check,
synchronization check and voltage and frequency matching.
The energizing check function checks that bus side is dead to ensure that breaker
closing can be done safely. The synchronization check function checks that the
voltages and frequency on both sides of the circuit breaker are within the predefined
setting. It is used to perform a controlled reconnection of two systems.
In the auto synchronization control mode, the function's automatic, semi-automatic
and manual operation modes decide the operation of voltage and frequency matching
and the auto synchronization process.
IEC 61850 IEC 60617
identification identification
ASGCSYN AUTOSYNCG
Section 9
Control functions
ANSI/IEEE C37.2
device number
25AUTOSYNCG
1399