Idiomas disponibles
Idiomas disponibles
3. ELECTRONIC REGULATOR QSR4
General characteristics:
Large three digit display offers comfortable viewing and ease of operation.
•
New measuring system works even when the current is distorted by the presence Harmonics.
•
Microprocessor controlled switching of up to four banks of capacitors to reach the target P.F.
•
Auto-diagnosis system process's the information about the condition of the network and protects the capacitors
•
from peak voltages and extending their life.
The regulator is able to detect automatically the correct phasing of the C.T., it is not necessary to ensure
•
correct polarity connection as with many other Power factor regulators.
Warning
To ensure correct operation of this electronic P.F. regulator and correct functioning of its internal self test routine, the
regulator must be earthed. The guarantee does not cover problems arising from an incorrect earth connection.
Powering on
When power is switched on, an internal self test routine is performed. The display shows the type of regulator and then
displays the installed s/w version.
Digital display
It is possible to read the value of P.F. and the working banks on the digital display. Normally the regulator indicates the
value of P.F., to read the working banks it is necessary to press simultaneously the [
banks are indicated with vertical lines adjacent to the ON and OFF legends. If a power loss occurs, the digital display
returns to read the value of P.F. To return to the P.F. on the display press simultaneously the [
AUTOMATIC working
This is the standard condition when switching on the regulator.
When the network is inductive (motors, transformers,
fluorescent lamps, etc), the led "Ind" is on and the regulator
begins to connect capacitors banks. If too many capacitors
banks are connected, the led "Cap" will be on and the
regulator will begin to switch off banks. The preset PF value
will be achieved when both led's "Ind" and "Cap" are off.
MANUAL working
Press shortly the button "SETUP".
When the regulator is in MANUAL
mode the red Led on the button will be on. In manual mode,
the regulator will not operate without a manual input (both
inductive and capacitive Led's are off). By pressing either the
+
-
[
] or [
] buttons all banks will be connected or
disconnected one step at a time.
Each button must be pressed for at least 25 secs.
When a power loss occurs, all capacitor banks will be switched off automatically.
When the power returns, the regulator will again insert all required banks step by step.
SETTINGS ON REGULATOR
After making the required connections to the regulator, the following adjustments should be made.
Note: In the presence of alarms, the setting mode is disabled.
C/K setting
• • • •
By pressing the [SETUP] button for 4 secs in AUTOMATIC mode, the "SETTING MODE" will be entered. The red
led "Ind" and "Cap" will illuminate and, at the same time, a number will appear in the digital display. Release the
"SETUP" button and use the [
The suggested value to set is given on the table "C/K VALUES" (see table next page):
AUTOMATIC / MANUAL selction button,
parameters programming
+
-
] or [
] buttons to change the selection.
12
+
-
] and [
Display
Disconnection
banks LED
MANUAL control banks, settings,
display operating banks
MU02.06 MMM REV.5 11/05
] buttons; the working
+
-
] and [
] buttons.
Connection
banks LED
