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Target TanΦ ( % ±75 ) – CosΦ ( ± 0,800 )
1 7
2
-
Settings
This is the section in which the required % value of the system is entered. CosΦ value
corresponding to the % value is displayed automatically on the other side. The value is setup to
the required step by using up and down keys starting from the digit where the blue line is. Then,
left key is pressed and the blue line moves next to left digit. All values are entered in the same
way by using the up and down keys. Moving the blue sub-line to the digit where the sign is by
using left key, the sign can be changed by pressing upwards key. (+) expresses inductive, (-)
expresses capacitive sections..
"Apply" key is pressed to take the
target value into memory. "Save
Changes" message will appear on
the screen. When "Okay" key is
pressed, the value is taken into the
memory.
1 7
3
Settings
This is the enterance section of the value of decharge period (sec) holded for preventing the
capacitor to activate again without decharging in the same step in case of requirement, after
release of the activated step. The value is setup to the required step starting from the digit under
which the blue line is, by using up and down keys. Then left key is pressed and the blue line
moves next to left digit. All the values are entered in the same way by using up and down keys.
Press "Apply" key inorder to take the period of step activating into memory. "Save changes"
message will appear on the screen. When "Okay" key is pressed, the value is taken into memory.
Period of activating line is subjected to a function with the % value obtained from the ratio of
energies. In case % value is getting close to the inductive penalty line value, the time is reduced
automatically by the device. If necessasy, compensation speeds up; and if not, it slows down by
means of dynamic control of step activating, and continously do not make fast moves
unnecessarily.
P.S.: Step activating time counts only for capacitor released newly. If necessary and a close
solution is found in another step, device activates the other option on time and the compensation
is not delayed.
If it' s not required the device to respond so quickly, holding period between the steps can be
extended to delay receiving process by increasing the value of ΔT on switching time described in
the next
1 7 10 1
P.S.3:
In case of selecting the switch on
time less than min.step time,
device accepts the switch on time
as constant time value.
Other Relays : They proceed the step activating transaction with constant time adjusted. If the
time is not over, they will wait for the deadline. This causes delays in the compensation.
VARkombi-12-PC-TFT-OG : It collects the energies (ind., cap., active) consumed. Step activating
and de-activating periods are decreased or increased automatically by the device according to the
consumed enerygy.
P.S.: The energies consumed in VARkombi-12-PC-TFT-OG and the % values are calculated
separately for each phase. Therefore, step activating and de-activating periods of each phase can
vary. For instance, while the step activating time for R-phase down to 2 seconds, the one for S-
phase can be 7 sec. VARkombi-12-PC-TFT-OG analyze the system phase by phase and set-up
the compensation rate for each phase seperately.
The most simple explanation
regarding the ratio of energy
of step activating period has
been given below.
In fact the function consists of
much more complicated and an
array of fuzzy logic. Step sub-
period (min) determines the
lowest time value of level activating
time which can be reduced by the device.
This parameter can be specified by the user.
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2 3
4
5 6
7
8 9
10
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Enter target TanΦ value
+00
%
▲ +
▼ -
◄
Switch on Time (decharge) (1 – 600 sec)
–
chapter.
1
2 3
Enter Step Switch On (Dis.)
020
▲ +
1
2 3
4
5 6
30
Enter target TanΦ value
CosΦ
1.000
+00
%
Apply
Okay
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5 6
7
8 9
10
11
30
Time
sec
▼ -
Apply
◄
t(sec)
Switch on time
Min. Switch Time
0
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8 9
10
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30
CosΦ
Save
1.000
changes
Exit
Cancel
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2 3
4
5 6
7
8 9
10
11 12
Enter Step Switch On (Dis.)
Time
Save
020
changes
sn
Okay
Exit
Cancel
% ind.
% ind.penalty line
30
12
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