Areva WSB - Voltage Detection Systems (VDS); Integrated Voltage Detecting System (IVIS); Phase Monitors

18
5 Voltage Detecting Systems (VDS)
>>
5.1 Integrated Voltage
Detecting System
IVIS
IVIS is an integrated voltage detec-
ting system with an integrated dis-
play unit used to determine zero vol-
tage / line voltage according to
IEC 61243-5.
The IVIS system has been designed
for maximum operating reliability. It
does not require supply from an
external source. It features climate-
proof encapsulated electronics and
is maintenance-free, due to perma-
nent monitoring of the indication
thresholds.
Flash arrow symbols on the indica-
tors display the mains voltage still
existing within the defined response
thresholds (Fig. 5.1). The IVIS
system does not require the electri-
cal repeat tests common for voltage
detection systems.
Important!
For a description of all
functions and messages of
the IVIS system, please refer
to the separate Operating Manual
"IVIS“ (No. AGS 531 751-01).
5.2 Pluggable voltage
detection system
The line voltage or the zero vol tage
state of the feeder panels
is detected via a separate voltage
detection system according to
IEC 61243-5. Socket-contacts for
the indicators are located on the
panel front as well as on the rear
side of the panel (Fig. 4.3). Capaci -
tive voltage indicators of all the
approved manufacturers can be
used (Fig. 4.2).
Important!
Comply with the manufac-
turer's Operating Manual of
the voltage indicators used.
Important!
All three phases L1, L2 and
L3 must always be checked
together.
Close non-used socket-contacts
using a cap.
Warning!
The indicators must not
be plugged in at the
front and rear simulta-
neously (offset response limits).
5.3 Phase monitors
Important!
Before connecting live
switchgear components for
the first time, always check
phase coincidence.
If IVIS is used, phase comparison
can be performed by means of the
phase monitor MS 100 (Fig. 4.5).
Fig. 5.2
Voltage indicator unit (HR-ST)
Manufacturer: Horstmann GmbH
Fig. 5.3
Socket-contacts for HR system
Fig. 5.1
1 IVIS display on the panel rear side;
the IVIS display on the panel front is in the
low-voltage cabinet
4Fig. 5.2
Phase monitor for HR system, type ORION
3.0 (manufacturer: Horstmann GmbH)
Fig. 5.5
Phase monitor MS 100
1