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Reactive Power Controller
= Key 1
= Key 2
= Key 3
Voltage transformer ratio
If the measurement and operating voltage for Prophi is
taken from a voltage transformer, the voltage trans-
former ratio can be set. This ratio is build by
number 1
and
number 2
.
Programming
number 1
Leaf to
number
1 for voltage transformer ratio in ex-
panded programming using key 3. Confirm with key 1.
In this example,
number
1 = 1.
Select the digit to be
changed by pressing
key 2. The selected digit is flashing.
Change the selected digit using key 3.
With key 1 you can leave programming mode and with
key 3 you continue expanded programming.
number 1
Voltage transformer ratio =
number 2
Attention
! If a wrong voltage transformer ratio is set,
all voltage as power is indicated incorrectly.
The setting ranges for the
numbers
1 and 2 are:
number 1
: 1 - 9.999k
number 2
: 1, 10, 100, 110, 200, 230, 400
In this example, the
presettings are indi-
cated with
number 1
= 1 and
number 2
= 1.
Programming
number 2
Leaf to
number
1 for voltage transformer ratio in ex-
panded programming using key 3. Change to
number
2
with key 2. In this ex-
ample a value of 1 is
indicated for
number
2.
Confirm selection with
key 1.
The value flashes.
With key 2 and key 3
the needed value can
be selected for
number
2
from a list of values
(1, 10, 100, 110, 200,
230, 400).
Confirm selection with key 1. The selected value does
not flash anymore.
Continue expanded programming with key 3.
Number 1
Number 1
is indicated with a decimal point automati-
cally, when the value gets bigger than 1000.
Example:
Voltage transformer ratio = 1200
1200 = 1.200k
Indication "1.200kV"
Example: Programming voltage transformer ratio
A voltage transformer has a primary of 20000V and a
secondary of 100V.
The result is a ratio of
20000V
=
200
100V
The measurement and supply voltage mentioned on type
plate of Prophi must be 100V.
To set the ratio of
200,
several combinations of
number
1 and
number
2 are possible.
e.g.
number 1
200
=
=
200
number 2
1
or
number 1
2000
=
=
200
number 2
10
kV
Prog
V
Prog
Number 2
V
Prog
V
Prog
Prog
V
V
Prog
