ABB Three Phase Mechanical AutoLink, Инструкция по эксплуатации

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1YSA160003-EN - Rev. 5 7 / 19
Figure 4.
C.4. Minimum Autoreclosing Operating Time required for AutoLink operation
The AutoLink requires a line current greater than 5 A in order to be fully charged during at least 15 seconds. After the condition of
the device is fully charged the line current can vary as low as 3A and it will continue to be operative.
The recloser should set its reclaim time to 15 seconds in order to prevent an auto-reclosing sequence before the AutoLink is fully
charged. If a fault happens before that timer, the recloser goes directly to lockout preventing the recloser cycle operation.
The AutoLink is able to detect a fault on the line with a period as small as one cycle. So the recloser can be set to start the tripping
command as long as it enables to flow through the sectionalizer one sinusoidal cycle in order to correctly measure the fault using its detection
algorithm.
The minimum opening time that the recloser is set to maintain the line deenergized after a fault during a reclosing cycle must be
set higher than 0,5 seconds in order to permit the AutoLink to perform the mechanical trip and safely isolate its connected faulty load and
isolate the fault from the other branches connected to the recloser.
Figure 5.
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Tim
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Current [A]
Minimum Current - Time Requirement