V2.01
25361_EDEBD
A0281-2320-1_EN
28
NOTE
A voltage transformer must be used here with no phase shift between current and volt-
age, as the device is not able to compensate this.
Setting the discharge time:
Checking or, if necessary, changing the discharge time of the capacitor stages is a very
important menu item. Please make sure that the correct value is set, otherwise the sys-
tem could be damaged!
The discharge times can be set:
for thyristor stages
20 to 9999 milliseconds
for contactor stages
0 to 900 seconds
The discharge times are automatically predefined,
in the capacitor contactor stage
, for
the following programmed stage powers. However, these must be checked and corrected
if they differ from the capacitor specifications.
Capacitor power
Discharge resistance
Discharge time
0.1 kvar – 9.9 kvar
300 kOhm
60 seconds
10 kvar – 19.9 kvar
300 kOhm
120 seconds
20 kvar and above
300 kOhm
180 seconds
In the thyristor stages
, irrespective of the stage power, the discharge time is always
entered as 20 milliseconds, both when reprogramming and when changing the stage
power. A discharge time changed later on is retained however, as long as the stage power
is not changed.
Configuring the capacitor stages:
There are two ways of configuring the capacitor stages. The stages can be configured
manually or using the auto configuration mode.
NOTE
The Auto configuration mode menu will not appear
if the "Learning mode" is deactivated in the "Extras"
menu
It is important to set the stage power correctly. You can find the stage power on the
nameplate of the stage or the circuit diagram and then program it manually. In this case,
skip the menu item "Learning mode activate" and enter the power value individually for
each stage.
If you want to activate the learning mode, you have to make sure that all previous sub-
