27
The required number of switches is to be
divided by 1000 before being entered.
That means that entering 100 evokes an
alarm at 100,000 switches of one stage.
The stage alarm signals have no influence
on the control behaviour/ performance of
the relay.
5.15 Reseting Switching Counter
In mode -15- the switching counters can
be reset altogether or separately.
When choosing mode -15- the display
shows "0". With the "+" and "-" buttons a
stage number between 1 and 6 or "all"
can be chosen. Leaving the programing
section by pressing the "man/set" button
resets the count of the displayed stage. By
setting "all" all counts are reset.
If you do not want to reset any counter "0"
has to be set befor pressing the "man/set"
button.
5.16 Current Transformer (CT) Ratio
In order to display the active current (IP),
reactive current (IQ), and apparent current
(IS) as actual values, the ratio between the
primary current and the secondary current
of the current transformer used must be
entered. If the current transformer ratio is
not set the value displayed must be
multiplied by the CT ratio.Values between
1 and 7000 can be entered
(eg. 1000A/5A→200).
5.17 Voltage Transformer Ratio
If a voltage transformer is used within the
measuring circle the voltage transformer
ratio must be entered in order to scale the
display of missing kvar to reach the target
power factor correctly.
The primary/secondary voltage trans-
former ratio is set between 1 and 300. If
no voltage transformer is present, the
value "1" must be entered.
5.18 Setting 5
th
Harmonic Threshold
The Control Relay RM 9606 has a har-
monic monitoring system for the 5
th
, 7
th
,
11
th
, and 13
th
harmonics. If the limiting
value is exceeded, there is an alarm
signal, i.e. the alarm contact closes and
the "Alarm" LED illuminates for as long as
the limiting value is exceeded. The
"Harmonic" LED flashes until the alarm is
switched off. The order and the maximum
value of the harmonics which have been
exceeded, beginning with the maximum
deviation, are displayed by multiple press-
ing of the "Set" button. The "Set" button
must be pressed repeatedly until the
"Harmonic" LED goes out.
5.19 Setting 7
th
Harmonic Threshold
Setting of the limiting value for the 7
th
harmonic.
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