Battery Replacement
Although both the control and lockout target batteries are
designed to last for ten years under normal duty, it is rec-
ommended that they be replaced every six years. This
corresponds to the maximum recommended interval for
vacuum recloser maintenance. The control battery
should also be replaced if the total accumulated time
without CT power reaches 100 days; however, the con-
trol battery life is reduced to half (50 days) with SCADA.
The control battery life is independent of the number of
trip or close operations of the recloser.
Programming the Control
Settings
The control must be programmed with all necessary oper-
ating settings prior to operation with an energized reclos-
er. Changes in the control operating parameters should
only be made by a qualified technician or engineer.
The DIP switches for programing the control are located
on the lefthand side of the control cabinet as shown in
Figure 4.
Sequence Coordination
Sequence Coordination prevents unnecessary operation
of the backup recloser for a fault beyond a downline
recloser by advancing the control sequence one step
when line current exceeds the programmed minimum trip
value for a time duration shorter than the programmed
control response time. This maintains trip coordination
with a downline recloser while protecting fuses from tem-
porary faults.
Sequence Coordination is always active for the number
of TCC1 operations selected for the VXE control. For
example, for two trip operations on TCC1 and two trip
operations on TCC2, Sequence Coordination will
advance to TCC2 for the third trip operation of the down-
line recloser, maintaining trip coordination.
Minimum-Trip Value
The minimum-trip current rating for phase overcurrent is
established by positioning DIP switches (labeled S1) in
the control (Figure 5). The minimum-trip setting of the
recloser can be changed by merely changing the DIP
switch setting.
Minimum-trip level can be programmed from 10 through
1280 A, in 10 A increments. The programmed value
equals the sum of the values of the switches in the On
position plus 10 A.
To avoid inadvertent tripping of the recloser when chang-
ing minimum-trip settings on an energized recloser,
all
the S1 switches must be set to the ON position first
. Turn
off the necessary switches to obtain the desired minimum
trip value.
Type VXE Single-Phase Electronically Controlled Recloser Installation and Operation Instructions
8
Figure 5.
Programming DIP switches.
921119KM-2
CAUTION:
Equipment misoperation. Do not
energize this equipment until all control settings
have been properly programmed and verified. Refer to
the Control Programming and Operation section of this
manual for programming procedures. Failure to comply
can result in misoperation (unintended operation),
equipment damage, and personal injury.
G118.1
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