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UR Family Firmware 5.83 - Release Notes
b. When “3I_0 > OC Supv and I_2 < CutOff”
Any of these conditions prevents the “Fault type” comparator from blocking of the ground distance
elements. Devices with previous firmware versions show the CutOff level is not correctly scaled, which
breaks the condition “b” described above.. For additional details on the “Fault type” comparator, see the
Instruction manual of any applicable UR device.
GE tracking number: 710-8
P
Neutral directional overcurrent detection error
Products: C70, D30, D60, F60, G30, G60, L30, L60, L90, M60, T60
Corrected firmware: 5.83, 7.20
Workaround: None
Description: Neutral Directional overcurrent element flags NTRL DIR OC FWD and NTRL DIR OC REV do not
operate as expected when polarization is selected as Dual. When IG is not supplied, the V0 and I0
comparator had a small error, reducing the operate region by 20 to 40 degrees (from the limit angle) and
was found to be smaller for the NTRL DIR OC REV operand, ensuring adequate security. This applies to all
previous firmware versions.
GE tracking number: 720-26
Communications
C
New GOOSE Dynamic VLAN Priority
Products: B30, B90, C30, C60, C70, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, N60, T35, T60
Corrected firmware: 5.8x (from 5.83)
Workaround: None
Description: IEC 61850 GOOSE messages contain the IEEE 802.1Q extension for the inclusion of Ethernet
Priority and VLAN addresses in an Ethernet data frame. The existing implementation allows users to set a
single value of priority that applies to all GOOSE messages. That singular value of priority is embedded in
the extended Ethernet frame. Firmware version 5.83 includes a “Dynamic VLAN Priority” feature that
allows dynamic change of the priority level of published GOOSE messages. This feature is included only
with firmware version 5.8x, starting with 5.83.
Existing settings for “GOOSE VLAN priority” remain as a single digit setting; however, the single digit now
represents a “Dynamic Priority Range”. The following table shows all new “Dynamic Priority range” and
“VLAN Priority” settings.
VLAN Priority Setting
Dynamic Priority Range
7
7 to 4
6
6 to 4
5
5 to 4
4
4 static
3
7 to 5
2
6 to 5
1
5 static
0
6 static
The first time a GOOSE message is published (triggered on a state change), it has the highest priority of the
“Dynamic Priority Range”, and then each subsequent GOOSE re-transmission (based on the re-
transmission profile setting) has a priority that is decremented by one count. This repeats until the actual
priority value reached the “end” of the Dynamic Priority Range. For Instance, a VLAN priority setting of 7
sets the priority of the first GOOSE publishing to 7. The priority of the first re-transmission of the GOOSE is
6, the priority of the next re-transmission is 5, and then finally 4. For further information on the GOOSE
Dynamic VLAN Priority, see the instruction manual of any applicable UR device.
GE tracking number: 583-01