22
251/02 en
6
Parallel operation
6.1.1
System configuration, settings
Feed the additional connections/terminals to the regulators
(see
fig. 8
).
8
to the second
TAPCO
N
®
230 VC / VC 100-BU-02
shielded cable, max. 25 m
Single/parallel
TACPCON
®
230 VC
6.1.2
Setting the interference variable
(
CIRCUL. REAC. CURR.
STABILITY)
CIRCUL.REAC.CURR.
STABILITY
0.0
(0.0- 100.0) 23/30
Operate the SELECT key and the
keys to select the
menu point and
press the
SET and
function keys
to
set a stability value between 0 and 100. The stability value is
a measure used for determining the effect of the circulating
reactive current on the voltage regulator. If it is set to "0",
no effects will occur. For a circulating reactive current equal
to the rated current of the voltage transformer, a setting
value of 10 would result in a voltage correction of 10 % in
the voltage regulators.
Operate the SELECT key and the
keys to select the
menu point and press the SET and
function keys to
set the bandwidth from 0.5 to 20 % (in relation to the rated
current of the voltage transformer). If the circulating reac-
tive current exceeds the preset threshold value during paral-
lel operation, the message "circulating reactive current" will
be displayed in the status line and after a period of 30 s the
signalling relay contact (terminal 83/84/85) will respond.
All voltage regulators engaged in parallel operation will be
blocked.
6.1.3
Setting the bandwidth for circulating
reactive current (blocking threshold)
CIRCUL.REAC.CURR.
BANDWIDTH
20%
(0.5% - 20.0%)24/30