The stage connection and reclosing times must be adapted to the discharge time of
the capacitors, and to the pre-determined operating rates, according to their specific
features, for the capacitor bank operating elements. It is important to remember that
excessively short connection times can cause serious damage to the components of the
device.
Once the device is installed, select the High Voltage option in the programming menu (“5.10.- VOLTAGE
LEVEL”).
When this option is selected the following functions are disabled in the device:
The automatic programming function (Plug&Play).
The function of automatically testing the status of the capacitors (AutoTest).
The leakage current measurement and related alarms.
3.3.- INSTALLATION
The Computer SMART III regulator is connected to devices that contain capacitors,
which are kept charged after the voltage is taken away. Wait at least 5 minutes after
the device is disconnected before handling its internal components, in order to avoid
the risk of electric shock.
Any manipulation or use of the device other than that specified by the manufacturer
may compromise user safety.
Make sure that the devices are correctly earthed before they are connected. A faulty earth connection
could lead to faulty operation and lead to a risk of electrical shock for the user or person handling the
device.
Resonance can occur when the device is connected with no load. In this case, the voltage harmonics
can be amplified, causing damage to the compensation device and other devices connected to the
mains.
The persons responsible for installing or operating the Computer SMART III must follow common
safety measures for LV or MV electrical installations in order to guarantee safe operation according to
the installation location. In addition, they must take into account all the safety warnings stated in this
instruction manual.
The device will be installed on a panel (138+1
x 138+1 mm panel boring, in compliance with DIN 43700).
All connections are inside the electric panel.
Terminals, opening covers or removing elements can expose parts that are hazardous
to the touch while the device is powered. Do not use the device until has been com-
pletely installed.
The device must be connected to a power circuit that is protected with gL fuses (IEC 269) or M fuses,
with a rating of 0.5 to 2 A. It must be fitted with a circuit breaker or equivalent device for disconnecting
the device from the power supply mains.
The power and voltage measurement circuits as well as the relay contact circuits must be connected
with cables that have a minimum cross-section of 1.5 mm
2
.
10
Computer SMART III
Instruction Manual
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