Hitachi ABB RVT Installation Und Betriebsanleitung Seite 45

ON-Delay:
– in normal operation, it is the time between the demand to switch ON a step and the actual switching.
– in integral operation, it is the integration time between two switching decisions.
The ON-delay is needed to allow the capacitor to discharge before switching it ON.
Caution: short delay time could cause severe damages to the bank.
OFF Delay:
– in normal operation, it is the time between the demand to switch OFF a step and the actual switching OFF.
– in integral operation, OFF-Delay is not used.
Reset Delay: the time the RVT waits before restarting bank operation after a power outage.
Click the button "Control" on the screen shown in
ing strategies in following screen.
1Ph/3Ph
This setting defines the type of connection for the current measurements. RVT allows eight different CT connection
topologies based on the type of network (three phase three wire network, three phase four wire network or single
phase network (phase to phase):
One phase current measurement (available for both base mode RVT6/12 and RVT12-3P):1Ph-1LL1, 3Ph-1LL1, 3Ph-
1LN1.
STATUS
Approved
Figure
Figure 33 RVT bank control settings
SECURITY LEVEL
Public
PO WER FACTO R CON TR O LL ER RV T
27, the user can set the CT measurements and bank switch-
DOCUMENT ID
9AKK107045A9645
REV. LANG. PAGE
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