KMB NOVAR 2600, Operating Manual

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NOVAR 2600 Operating Manual
• Nominal frequency f
NOM
- the parameter must be set in compliance with the measurement
network nominal frequency to either 50 or 60 Hz.
• Nominal Voltage U
NOM
, Nominal Current I
NOM
, Nominal Power P
NOM
- For the presentation
of quantities in percent of nominal value, alarms operation, voltage events detection and
other functions it is necessary to enter also the nominal ( primary ) voltage
U
NOM
, nominal
current I
NOM
and nominal apparent three-phase power (input power) of the connected load
P
NOM
( in units of kVA ) Although the correct setup has no effect on measuring operation of the
instrument, it is strongly recommended to set at least the
U
NOM
correctly.
Correct setting of the I
NOM
and the P
NOM
is not critical, it influences percentage representation
of powers and currents and statistical processing of measuring in the software only. If
measured network node rating is not defined, we recommend to set their values, for example,
to the nominal power of source transformer or to the maximum supposed power estimated
according current transformers ratio, etc.
The
U
NOM
is displayed in form of phase/line voltage.
3.1.1.1 Setup Example
Following example explains how to adjust the CT ratio :
Assuming that the conversion of used CT for inputs of current L1 to L3 is 750/5 A. To edit the
parameters, press the
button, navigate to the
Menu-Settings
with the buttons ►and ◄ and
then choose it with the  button. In the
Setting
window choose
Setting-Installation
option. The
Setting-Installation window appears :
In the window navigate down to the current transformer ratio parameter ( CT ) and choose with the
 button.
Now you can type new value of the parameter : with the ►button you can move from a digit to
another one and to set each digit to target value using the ▲and ▼buttons. At the end press the
 button and the parameter is set.
You can set other parameters in the same way.
After all of the parameters correctly set, return back to t
he power factor control screen with the
(escape) button and confirm saving of changes with he  -button.
Now you can browse through displayed actual values in the right part of the screen with ▲and
▼buttons and check if they correspond with reality.
For proper CT connection checking, you can use phasor diagram screen (see the meter
block) or the CT connection test (see description further below).
After all of measured quantities checked, it is time to set the power factor control (PFC) parameters.
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