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Hitachi ABB RVT Installation Und Betriebsanleitung Seite 26

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  • DEUTSCH, seite 161
Phase shift and rotation for each predefined type of connection
number of outputs
type of switching sequence
– Automatic setting of: C/k, the start current, detailed description on C/k can be found in paragraph
3.4.2.
Preparation for automatic commissioning
Required parameters during the auto commissioning process are:
– Type of connection. The type of connection defines the way of CT connections for RVT. There are total eight differ-
ent types of connection for CTs, which depends on how many current measurements and how these CTs are con-
nected. Detailed description on the type of connections can be found in paragraph
– CT Scaling: Current Transformer ratio (for instance a 250A / 5A CT has a CT scaling of 50). More info can be
found in paragraph
4.3.1.2.
– Target cos  (in paragraph 4.3.1.3.)
3.4.3.
Automatic commissioning
– if you have a short-circuit on the CT's secondary winding do not forget to open it after having connected the cur-
rent input of the PF Controller
– if a transformer is used for the voltage measurement, the Vscaling value needs to be changed accordingly (see
paragraph
4.3.1
Notes: when the icon
RVT is locked. The set Mode access is denied and commissioning cannot be performed until the RVT is unlocked
(see description in paragraph 4.3.1.1.)
Following screenshots shows how a typical automatic commissioning takes place:
STATUS
Approved
(hardware lock) appears on the status bar at the bottom of the display, this means that the
SECURITY LEVEL
Public
PO WER FACTO R CON TR O LL ER RV T
DOCUMENT ID
9AKK107045A9645
4.3.1.2.
4.3.1.2.
REV.
LANG.
PAGE
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en
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