ABB VT Guard Pro - Page 7

7 1VLM000651, Rev.3, en 2014.01.21
Fig. 7 – DIN – TS 35 fixing
Device part
Functional
X1:1
open delta configuration - live end
0 - 110 V AC
X1:2
open delta configuration - earthed end
earthed
Diagnostic
X2:1
measurement/residual winding - earthed
earthed
X2:2
measurement/residual winding - live end
33 - 110 V AC
X2:3
measurement/residual winding - live end
33 - 110 V AC
Auxiliary
contacts
X3:1
closed in normal condition
230 V AC
220 V DC
X3:2
Tab. 1 – Terminals position
All of assembly work should be done after transformers
disconnection from network.
It is forbidden to open VT Guard enclosure under voltage or with
connected leads from the voltage transformers
It is forbidden to do any manipulation or changes inside of the
device, except of jumper setting (Fig.). Jumper setting to be done
by authorized and trained personnel only.
If the device is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired