Table 609: ESSXSWI Monitored data
Name Type Values (Range) Unit Description
POSITION Dbpos 0=intermediate
1=open
2=closed
3=faulty
Apparatus position
indication
9.3 Synchronism and energizing check SECRSYN
9.3.1 Identification
Functional description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Synchronism and energizing check SECRSYN SYNC 25
9.3.2 Function block
GUID-9270E059-ED17-4355-90F0-3345E1743464 V2 EN
Figure 362: Function block
9.3.3 Functionality
The synchrocheck function SECRSYN checks the condition across the circuit
breaker from separate power system parts and gives the permission to close the
circuit breaker. SECRSYN includes the functionality of synchrocheck and
energizing check.
Asynchronous operation mode is provided for asynchronously running systems.
The main purpose of the asynchronous operation mode is to provide a controlled
closing of circuit breakers when two asynchronous systems are connected.
The synchrocheck operation mode checks that the voltages on both sides of the
circuit breaker are perfectly synchronized. It is used to perform a controlled
reconnection of two systems which are divided after islanding and it is also used to
perform a controlled reconnection of the system after reclosing.
The energizing check function checks that at least one side is dead to ensure that
closing can be done safely.
1YHT530004D05 D Section 9
Control functions
615 series 679
Technical Manual
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