2 Functions
222
7SD610 Manual
C53000-G1176-C145-4
Figure 2-95 Manual closure with internal automatic reclosure
CB Circuit breaker
ON Circuit breaker close coil
CBaux Circuit breaker auxiliary contact
If, however, external close commands which should not activate the manual close
function are possible (e.g. external reclosure device), the binary input „>Manual
Close“ must be triggered by a separate contact at the control discrepancy switch
(Figure 2-96).
If in that latter case a manual close command can also be given by means of an inter-
nal control command from the device, such a command must be combined with the
manual CLOSE function via parameter 1152 Man.Clos. Imp. (Figure 2-94).
Figure 2-96 Manual closing with external automatic reclosure device
CB Circuit breaker
ON Circuit breaker close coil
CBaux Circuit breaker auxiliary contact
Besides the manual CLOSE detection, the device records any energization of the line
via the integrated line energization detection. This function processes a change-of-
state of the measured quantities as well as the position of the breaker auxiliary con-
tacts. The current status of the circuit breaker is detected, as described in the following
Section at „Detection of the Circuit Breaker Position“. The criteria for the line energi-
zation detection change according to the local conditions of the measuring points and
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