ABB Relion 670 series - Autorecloser SMBRREC (79); Introduction; Principle of operation; Logic Diagrams

Function Range or value Accuracy
Time delay for energizing check (0.000-60.000) s ± 0.5% ± 10 ms
Operate time for synchronism
check function
160 ms typically -
Operate time for energizing
function
80 ms typically -
12.2 Autorecloser SMBRREC (79)
Function Description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Autorecloser SMBRREC
O->I
SYMBOL-L V1 EN
79
12.2.1 Introduction
The autorecloser SMBRREC, 79 function provides high-speed and/or delayed auto-
reclosing for single or multi-breaker applications.
Up to five three-phase reclosing attempts can be included by parameter setting. The
first attempt can be single-, two and/or three pole for single pole or multi-pole faults
respectively.
Multiple autoreclosing functions are provided for multi-breaker arrangements. A
priority circuit allows one circuit breaker to close first and the second will only close if
the fault proved to be transient.
Each autoreclosing function is configured to co-operate with the synchronism check
function.
12.2.2 Principle of operation
12.2.2.1 Logic Diagrams
The logic diagrams below illustrate the principles applicable in the understanding of
the functionality.
1MRK505222-UUS C Section 12
Control
633
Technical reference manual