Information List
No. Information Type of
Informa-
tion
Comments
- Meter res IntSP_Ev Reset meter
888 Wp(puls)= PMV Pulsed Energy Wp (active)
889 Wq(puls)= PMV Pulsed Energy Wq (reactive)
916 WpΔ= - Increment of active energy
917 WqΔ= - Increment of reactive energy
924 Wp+= MVMV Wp Forward
925 Wq+= MVMV Wq Forward
928 Wp-= MVMV Wp Reverse
929 Wq-= MVMV Wq Reverse
Flexible Function
The flexible functions can be used for various protection, supervision and measuring purposes. Up to 12 flex-
ible functions can be created in 7UT6x.
The flexible functions can be configured as independent protective functions (e.g. further time overcurrent
protection for measuring locations), create additional stages for already existing protective functions or used
for monitoring or control functions. When determining the function scope (Section 2.1.3 Functional Scope)
the number of flexible functions can be given.
Every flexible function is configured by defining analogue input value(s), type of measured value processing
and logic link. Setting limit values, delay times, etc. can be reset with the setting groups (see Section
2.1.5 Setting Groups under margin heading “Setting Groups”).
Functional Description
General
When creating a flexible function you determine how the measured values (lead to the device) are to be
processed. The measured values can be directly detected (e.g. currents) or mathematically combined (e.g.
positive sequence system of the currents or current and voltage power).
The measured values can be monitored for overshooting or undershooting of a configurable threshold value.
Delays, blocking and logical configuration possibilities are possible via user-definable logic functions (CFC).
A flexible function can signal the state that needs to be monitored, be used as control function or initiate trip-
ping of one or more circuit breakers. The latter starts the circuit breaker failure protection with the trip
command, if it has the same assignment characteristics.
Measured Values
All measured values given to the device can be used as analogue input quantities for a flexible function.
Three-phase values can be processed together or individually. Together means that the three-phase currents
of a measuring point exceeding a common limit value have to be monitored, but have to be announced and
processed individually. All settings are for all three currents. A flexible function can be created for each of the
three phase currents, then that exact size can be evaluated and the violation of the limit value condition can
be further processed. Th settings are independent.
Derived (calculated) sizes can also be evaluated. Should the positive sequence system from the three phase
currents be evaluated, the positive sequence system is calculated from the three analogue input quantities
(phase currents) and used as evaluated quantity. The overall performance can be calculated and evaluated
accordingly from the three currents and respective voltages (6 input quantities).
Processing
Violation of the set limit value picks up the function.
2.22.6.2
2.22.7
2.22.7.1
Functions
2.22 Auxiliary Functions
SIPROTEC 4, 7UT6x, Manual 289
C53000-G1176-C230-5, Edition 09.2016
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