VAMP Ltd
Overcurrent and earth-fault relay
Technical Description
VAMP 130
VM130.EN003
Vamp 24h support phone : +358 (0)40 573 6316
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2.4.1.
Output relay matrix
By means of the relay matrix the output signals of the various
protection stages can be combined with the trip relay T1 and T2,
alarm relays A1...A3 and the operation indicator L1 (Alarm) and
L2 (Trip).
When a connection is made, two functions can be selected, the
signal follower function (•) or the latching function (o), see
Figure 2.4-1.
The "Reset all latches" function resets all latched output relays
and operation indicators. The reset signal can be given via a
digital input, the key pad or the serial port. If the reset signal is
to be given via the digital input DI1, the Remote Release
(“RemRel”) input DI1 must be configured to function as a reset
input from DIGITAL IN/RemRel menu
2.4.2.
Blocking matrix
By means of the block matrix the operation of a protection stage
can be blocked. During blocking, a stage will not start or if
already started the delay counter is halted, thus preventing
tripping. The blocking signal can originate from the digital input
DI1, or it can be a start or trip signal from a protection stage. In
Figure 2.4-1, a blocking connection is indicated with a black dot
( • ) in the crossing point of a blocking signal and a signal to be
blocked.
2.5.
Communication
The PC port is used for on-site parameterization of the relay, for
downloading of the program and for reading relay parameters to
a PC.
For connection to a PC, one RS 232 serial port is available on
the front panel of the relay. Any connection to the port is done
with the connection cable type VX 003-3.
2.6.
Disturbance recorder
The disturbance recorder can be used to record all measured
signals i.e. currents and voltages, status information of digital
inputs (DI) and digital outputs (DO). The digital inputs include
also the Arc light information (S1, S2 and Arc binary input BI).
The digital outputs include the Arc binary output information
(BO).
