3.4.3 Parameter setting groups
3.4.3.1 Application
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
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.
3.4.3.2 Setting guidelines
The setting ActiveSetGrp, is used to select which parameter group to be active. The
active group can also be selected with configured input to the function block
SETGRPS.
The length of the pulse, sent out by the output signal GRP_CHGD when an active
group has changed, is set with the parameter t.
The parameter MAXSETGR defines the maximum number of setting groups in use to
switch between. Only the selected number of setting groups will be available in the
Parameter Setting tool (PST) for activation with the ActiveGroup function block.
3.4.3.3 Setting parameters
Table 16: ActiveGroup Non group settings (basic)
Name
Values (Range) Unit Step Default Description
t 0.0 - 10.0 s 0.1 1.0 Pulse length of pulse when setting changed
1MRK504116-UUS C Section 3
IED application
81
Application manual
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