VAMP 120
Arc protection unit
User manual
VAMP 120
Arc protection unit
User manual
VAMP Ltd
2
VAMP 24h support phone : +358 (0)20 753 3264
VM120.EN001
VAMP Ltd
Arc protection unit
User manual
VAMP 12
0
VM120.EN001 VAMP 24h support phone : +358 (0)20 753 3264
3
Table of content
1. General ...................................................................................4
1.1. Arc protection unit VAMP 120...........................................4
1.2. Unit features .........................................................................4
2. Unit configuration...................................................................5
3. Sensors ....................................................................................6
3.1. Arc sensor VA 1 DA .............................................................6
4. Functions .................................................................................8
5. Applications............................................................................9
6. Connections .........................................................................10
7. Technical data .....................................................................12
Auxiliary voltage..................................................................12
Tripping contacts ................................................................12
BIO Input ...............................................................................12
Disturbance tests .................................................................12
Voltage tests ........................................................................13
Mechanical tests .................................................................13
Environmental conditions ..................................................13
8. Dimensions............................................................................14
8.1. VAMP 120 ...........................................................................14
8.2. VA 1 DA arc sensor ...........................................................15
8.3. Mounting plates for VA 1 DA...........................................15
9. Order information.................................................................16
10. Reference information.........................................................17
VAMP 120
Arc protection unit
User manual
VAMP Ltd
4
VAMP 24h support phone : +358 (0)20 753 3264
VM120.EN001
1. General
This manual describes the general functions of the arc
protection unit, it also includes mounting and configuration
instructions.
1.1. Arc protection unit VAMP 120
Figure 1.1-1. Arc protection unit VAMP 120
1.2. Unit features
VAMP 120 is a state of the art arc protection unit for electrical
power distribution systems.
By using VAMP 120 in switchgears considerable safety
improvements are obtained in the form of minimized injury and
damage in case of an arc fault.
VAMP 120 is a “stand alone” system, which gives a compact
solution when the application doesn’t require overcurrent
measurement or when the overcurrent information is available
from the incomer protection relay or any other arc protection
unit (VAMP 221 / VAM 4C). It is possible to connect 4 arc
sensors, of the type VA 1 DA or VA 1 EH, to the VAMP 120
unit.
VAMP Ltd
Arc protection unit
User manual
VAMP 12
0
VM120.EN001 VAMP 24h support phone : +358 (0)20 753 3264
5
2. Unit configuration
Figure 2-1. VAMP 120 dipswitch operations and sensor connection
The unit is configured using the dipswitches:
Dipswitches 1-5 (see Figure 2-1):
If only one arc sensor in use, SENSOR 1 input should be used.
•
SW nr. 1 : if sensor input 2 is also required, SEN 1
should be set to the left position.
•
SW nr. 2 and 3 : if sensor input 3 and 4 are used, SW nr. 2
and 3 should respectively be set to left
position.
•
SW nr. 4 : is setting the system selectivity. If set to
the left position, sensor nr. 1 and 2 will
trip relay T1. Accordingly sensor nr. 3 and
4 will trip relay T2. The NC trip signal
out put will always work in parallel with
T1. If SW nr. 4 is to the right, all four
sensor channels will activate both trip
groups.
•
SW nr. 5 : is the selection of tripping criteria. If set
to the right, the unit will trip for light
only. If set to the left, the unit needs both
light and current information for tripping.
•
SW nr. 6 and 7 : the Latch switches enables latching of the
trip relays. When it is in ON position the
latching function is activated.
•
SW nr. 8 : is the configuration switch for sensor
inputs 2 and 3. If it is in “ON” position,
sensor 2 or 3 activation will make a
common trip of both T1 and T2. If it is in
“OFF” position, sensor 2 is linked to T1
and sensor 3 to T2.
VAMP 120
Arc protection unit
User manual
VAMP Ltd
6
VAMP 24h support phone : +358 (0)20 753 3264
VM120.EN001
3. Sensors
3.1. Arc sensor VA 1 DA
The arc sensor is a light sensitive element, which is activated
by strong light. Arc sensors should be mounted in the switchgear cubicles, in such a way that the light sensitive part (see
Figure 3.1-2) covers the protected area as completely as
possible.
Figure 3.1-1. Arc sensor VA 1 DA
403020100
50
60
70
80
90
100
120
130
140
100%
80
60
40
20
Figure 3.1-2. The sensitivity of the VA1DA arc sensor to light from different
directions.
In open spaces, such as the bus bar section, arc sensors should
be mounted max. four meters apart.
The light sensitivity of the arc sensor is 8000 LUX
The arc sensor can be mounted from the outside on partition
wall of the switchgear. The active part of the sensor is mounted
in a 10 mm hole, to the area in the switchgear that should be
protected, and fastened with a 4 mm self-tapping screw (see
Figure 3.1-3).
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