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1MAC050144-MB C
Section 7
Control functions
615 series ANSI
479
Technical Manual
Section 7
Control functions
7.1
Circuit-breaker control, 52
7.1.1
Identification
7.1.2
Function block
Figure 255:
Function block
7.1.3
Functionality
The circuit breaker control function 52 is intended for circuit breaker control and status
information purposes. This function executes commands and evaluates block conditions
and different time supervision conditions. The function performs an execution command
only if all conditions indicate that a switch operation is allowed. If erroneous conditions
occur, the function indicates an appropriate cause value. The function is designed
according to the IEC 61850-7-4 standard with logical nodes CILO, CSWI and XCBR.
The circuit breaker control function has an operation counter for closing and opening
cycles. The operator can read and write the counter value remotely from an operator place
or via LHMI.
7.1.4
Operation principle
Status indication and validity check
The object state is defined by two digital inputs
POSOPEN
and
POSCLOSE
which are also
available as outputs
OPENPOS
and
CLOSEPOS
together with the
OKPOS
information. The
debouncing and short disturbances in an input are eliminated by filtering. The binary input
filtering time can be adjusted separately for each digital input used by the function block.
The validity of the digital inputs that indicate the object state is used as additional
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Circuit breaker control
CBXCBR
I<->0 CB
52
Содержание 615 Series ANSI
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