VAMP 210 User Manual

VAMP Ltd Generator protection relay
Technical description
VAMP 210
VM210.EN004 Vamp 24h support phone: +358 (0)20 753 3264
17
When the negative phase sequence current just slightly exceeds
the set start level (K
2
) the operating time tends to become very
long. Therefore the maximum operating time has been limited
to 1000 seconds, although the operating time calculated from
the expression would be longer.
Besides inverse time characteristic the unbalanced load unit
can also be configured for definite time operation characteristic.
Figure 2.2.3-1. Operation characteristic of the unbalanced load unit.
Parameters of the unbalanced load unit:
I
2
> (46)
Parameter: Value/unit:
Measured
value
I
2
%
Neg. ph. seq. current as comp. to
Ig
I
2
> % Setting value
Setting
values
t> s Operating time [s]
SCntr Cumulative start counter
TCntr Cumulative start counter
Flt % Maximum fault current
Recorded
values
EDly %
Elapsed time as compared to the
set operating time, 100% =
tripping

VAMP 210 Specifications

General

Brand	VAMP
Model	210
Category	Relays
Language	English