Arcteq AQ-S215, Инструкция по эксплуатации

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Event Number Event channel Event block name Event Code Description
6721 105 CIN2 1 Open
6722 105 CIN2 2 Close
6723 105 CIN2 3 Bad
6784 106 CIN3 0 Intermediate
6785 106 CIN3 1 Open
6786 106 CIN3 2 Close
6787 106 CIN3 3 Bad
6848 107 CIN4 0 Intermediate
6849 107 CIN4 1 Open
6850 107 CIN4 2 Close
6851 107 CIN4 3 Bad
6912 108 CIN5 0 Intermediate
6913 108 CIN5 1 Open
6914 108 CIN5 2 Close
6915 108 CIN5 3 Bad
5.4.4 Auto-recloser (79)
Auto-reclosing means a coordinated de-energization and re-energization of overhead lines (both
transmission and distribution). Its purpose is to clear transient and semi-permanent fault causes from
the line and automatically restore the supply to the line. These types of faults account for approximately
80...95 % of all faults found in transmission and distribution networks. The majority of these fault types
can be cleared with high-speed auto-reclosing, while the rest can be cleared with delayed auto-
reclosing by de-energizing the faulty line for a longer period of time.
Only a minority of overhead line faults are of the permanent type which require maintenance or repair
in the actual fault location. This type of fault include lightning striking the line, a tree branch touching
the line, an arc caused by animals, and a short-circuit caused by some other object touching the line. If
the fault is permanent (e.g. a broken insulator or a fallen tree leaning on the overhead line), the auto-
recloser cannot clear the fault and the faulty feeder is locked and prevented from closing until the
cause of the fault is repaired in the actual fault location. Also, when a fault cannot be cleared by auto-
reclosing the line, any close-distance short-circuits should avoid initiating the auto-recloser because
that would only cause unnecessary stress for the lines and the circuit breakers. Similar situations also
rise in mixed networks since cable network faults cannot be cleared with the auto-recloser. The
function must therefore be aware of the fault location before applying the auto-recloser to the faulty
line.
Auto-recloser as application
The main principle of the auto-recloser is to de-energize the faulty line and the fault location so
the cause of the fault can drop out from the line. When the line is energized and an object either
touches the line or drops onto the line, the current starts to flow through the object either to the ground
or between the phases. This causes the surrounding air to heat and ionize, and it starts to operate as a
conductor between the energized phase(s) and the ground causing an arc to ignite.
A AQ Q-S215 -S215
Instruction manual
Version: 2.04
140