ABB ret650, Руководство по применению, Страница: 349 / 392

18.3.2 Application
SEMOD52434-4 v5
The current and voltage measurements functions (CVMMXN, CMMXU, VMMXU
and VNMMXU), current and voltage sequence measurement functions (CMSQI
and VMSQI) and IEC 61850 generic communication I/O functions (MVGAPC) are
provided with measurement supervision functionality. All measured values can be
supervised with four settable limits, that is low-low limit, low limit, high limit and
high-high limit. The measure value expander block ( RANGE_XP) has been
introduced to be able to translate the integer output signal from the measuring
functions to 5 binary signals, that is below low-low limit, below low limit, normal,
above high-high limit or above high limit. The output signals can be used as
conditions in the configurable logic.
18.3.3 Setting guidelines
SEMOD113223-4 v1
There are no settable parameters for the measured value expander block function.
18.4 Parameter setting groups
IP1745-1 v1
18.4.1 Application
M12007-6 v9
Six sets of settings are available to optimize IED operation for different power
system conditions. By creating and switching between fine tuned setting sets, either
from the local HMI or configurable binary inputs, results in a highly adaptable IED
that can cope with a variety of power system scenarios.
Different conditions in networks with different voltage levels require highly
adaptable protection and control units to best provide for dependability, security
and selectivity requirements. Protection units operate with a higher degree of
availability, especially, if the setting values of their parameters are continuously
optimized according to the conditions in the power system.
Operational departments can plan for different operating conditions in the primary
equipment. The protection engineer can prepare the necessary optimized and pre-
tested settings in advance for different protection functions. Six different groups of
setting parameters are available in the IED. Any of them can be activated through
the different programmable binary inputs by means of external or internal control
signals.
A function block, SETGRPS, defines how many setting groups are used. Setting is
done with parameter
MAXSETGR and shall be set to the required value for each
IED. Only the number of setting groups set will be available in the Parameter
Setting tool for activation with the ActiveGroup function block.
1MRK 504 169-UEN A
Section 18
Basic IED functions
Transformer protection RET650 2.2 IEC 343
Application manual