Entes RG3-15C, Manual

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POWER FACTOR CONTROLLER
RG3-15C/CS/CL/CLS
2. INSTALLATION OF RG3-15C/CS/CL/CLS
For proper operation of RG3-15C/CS/CL/CLS; 3-Phase, neutral,
voltage and current terminals must be connected as shown in the connection
diagram. Device will not be able to operate properly without 3-phase
connection.
After the connection of the current and voltage lines, connect the
capacitors to the device. The most important point is connecting a 3-phase
capacitor to the first step
. At least 3 single phase capacitors must be
connected to steps for RG3-15 C/CS. Shunt reactors must be connected
to R1, R2 and R3 steps for RG3-15 CL/CLS.
Shunt reactors for RG3-15 CL/CLS must have power values equal to or less
than capacitor power values.
Finally, communication connection must be done.
Do not energise the device before verifying the connections
.
Always connect a 3-phase capacitor to the 1st step.
5
* Current value of 3-Phase fuses, which are connected to
protect the capacitors, must be chosen according to the
nominal current value of capacitors which are given by the
manufacturer.
Warnings:
Firstof all; connection type of auxiliary supply, voltage measurement
and current measurement input must be 3 phase-neutral. The device
will not operate if these connections are not done.
After the device is energized, it finds connection errors and corrects
automatically as the first operation.
Phase current should not be equal
to zero in order to let the device to detect the connection error.
Device detects the connection error according to Active Power direction.
Device switches “ON” and “OFF” the 1st step’s 3-phase capacitor during
the correction of connection errors (Phase sequence error and polarity
error of Current Transformer). Device may not correct the connection
errors if there are too many instant variations for loads and nonlinear
loads (Such as Thyristor or triac controlled frequency inverter, UPS etc.).
In this case, user should disconnect the device and restart it to make
the same operation. This feature also can also be operated with “turning
ON” the “Auto SET” function in “Auto” menu. In this case device corrects
the errors and then calculates the capacitor values.
After connection errors are corrected; capacitor steps are calculated
by turning the “Auto Setup” function “
ON
” in “Auto” menu (
Refer to
“Automatic Capacitor Recognition” menu
).
A 3-phase capacitor
has to be connected to 1st step of the device. At least 3 single
phase capacitors must be connected to the steps for RG3-
15C/CS. Shunt reactors must be connected to R1, R2 and R3
steps for RG3-15CL/CLS. Inductive reactor step powers can’t
be calculated automatically for RG3-15CL/CLS. Power values
must be entered manually.
All steps are measured seperately if
the program-10 (PS-10) is selected in “Program” menu. In this
program (PS-10); single or 3-Phase capacitors can be connected
according to requirements of the system in any order. If you let the
device calculate the step power values in the previous step, you
can skip this part.If one of the other programs is chosen, device
measures the 1st steps power value and then calculates the other
steps values according to 1st steps value.
Device calculates the capacitor values which will be switched “ON”
according to selected program and switches “ON” or “OFF” the
necessary steps.
Connection of a circuit breaker or an automatic fuse is highly
recommended between the network and RG3-12C/CS. This circuit
breaker must be marked in order to seperate them from other
breakers.
All fuses which are used must be FF type and the current values
of the fuses must be 2A or 3A and 6A (Refer to Connection
Diagram).
The connection to the generator input of the device must be done
in a way that the energy comes to the system after the generator
connection to the network has been established. Otherwise, the
device will be switched to the generator operation for any generator
starts including the ones for maintaining purposes.
a)
b)
c)
After the device is energised, it finds connection errors and corrects
them automatically. Power values of the capacitor steps are measured
automatically according to program selection. If PS-10 program is
selected, power values of all capacitor steps are measured (Refer to
Program Section). If any other program is selected, device measures
first capacitor step value and then calculates other capacitor steps
according to the selected program. For this reason, a 3-phase capacitor
must be connected to the first step. Shunt reactors must be connected
to R1, R2 and R3 steps for RG3-15 CL/CLS. After the device calculates
and saves the capacitor values, it will switch them on and off when
needed.
When the capacitive steps are switched on, three-phase or single-phase
inductive steps don’t switch on.
When the single-phase inductive step is switched on, capacitive steps on
other phases may be switched on. For example; when inductive load on
T phase is switched on, capacitive loads on R or S phases may switch on.
2.1 Commissioning of RG3-15C/CS/CL/CLS
2.2 Sequencing of Steps
3. SETTINGS
3.1.a Manuel Operation Mode Setting
Device has two operating modes which are automatic and manual. The
operation mode is choosed by selecting the “Auto Operati” option as
on
(automatic mode) or
off
(manual mode). Manual mode is used for test
purposes. In this mode, capacitor steps are switched on&off to test relay
outputs. In manual mode, capacitor steps are switched on with
“SET”
button and switched off with
“ESC”
button. The conditions of the steps
can be monitored from the 15 step LEDs on the front panel. C+ LED lights
up when a step is switching on and C- LED lights up when a step is switching
off. Factory set values for switching on (t-on) and switching off (t-of) time
are 10 sec. These values can be changed by the “dELy” menu (Refer to
Switching on&off Time for Capacitor Steps and Discharge Time Settings).
In manual mode; step numbers, which will be switched on&off, can be
programmed in “StEP” menu (Refer to Step Number Setting). Even if manual
mode is selected, device switches to automatic mode after 5 minutes
continues to operate in this mode.
When automatic mode is selected, AUTO/MAN LED lights up continuously.
When manual mode is selected, AUTO/MAN LED blinks.
Warning: Device warns user by blinking (short ON, long OFF) the LED
of the capacitor steps which will be switched on. Also device warns
user by blinking (long ON, short OFF) the LED of the capacitor steps
which will be switched off.
3.1 Manual Operation Mode, Automatic Capacitor
Recognition Mode and Automatic Connection Control
Mode
When RG3-15C/CS/CL/CLS is energised for the first time, if the
power value of any phase is negative, it switches the first capacitor step
on&off automatically to recognize the connection error and records the
connections.
Later, automatic setup (Refer to page 6 - Automatic setup) is selected
from the menu in order to recognise the connections and connected steps
automatically. Inductive load steps can’t be calculated automatically for
RG3-15CL/CLS model. Power values have to be entered manually.
After automatic recognition, RG3-15C/CS/CL/CLS checks all
capacitor step values. If variable loads exist in the system, these variable
loads must be disconnected first and then automatic setup process must
be done. Otherwise, power factor controller may not measure capacitor
step powers correctly. Capacitor step powers and connection types also
can be entered to the power factor controller manually.
(
Refer to page 10 - Setting of the capacitor’s connection and power values
)
After recognising the capacitor step powers, target Cos
j
value is set in order to start the compensation. Factory set value for target
Cos
j
is ind. 1.000 and Cos
j2
is ind. 0.900.
NOTE: PFC decreases the switching on&off time to 3 seconds in
Automatic Setup mode but discharge time is not changed. After the
automatic setup process, set values become valid.
d)
e)
f)