Sel 411L - Table 3.112 Undervoltage Operating Quantity List

P.3.214
SEL-411L Relay Protection Manual Date Code 20151029
Protection Functions
Over/Undervoltage Elements
Settings Descriptions
E27 Enable Undervoltage Elements
Use the E27 setting to enable the number of undervoltage elements you want
the relay to use. Each undervoltage element provides two pickup settings
levels.
27On Undervoltage Element Operating Quantity
Select the operating quantity 27On (n = 1–6) you want for each voltage
element from Table 3.112.
27PkP1 Undervoltage Element Level 1 Pickup
The 27PkP1 (k = 1–6) undervoltage element Level 1 pickup setting is typically
used for alarm level indication of undervoltage conditions. The setting is in
secondary voltage. The Level 1 pickup has a definite-time delay (27PkD1) that
can be used to provide a time delay on the assertion of the undervoltage
element.
27PkP2 Undervoltage Element Level 2 Pickup
The 27PkP1 (k = 1–6) undervoltage element Level 2 pickup setting is typically
used for undervoltage tripping conditions. The setting is in secondary voltage.
The Level 2 pickup has no definite-time delay.
Setting Prompt Range Default Category
E27 Enable undervoltage elements (N, 1–6) N, 1–6 N Group
Table 3.112 Undervoltage Operating Quantity List
Label Description
VAFIM A-phase filtered instantaneous phase voltage magnitude
VBFIM B-phase filtered instantaneous phase voltage magnitude
VCFIM C-phase filtered instantaneous phase voltage magnitude
V1FIM Positive-sequence instantaneous voltage magnitude
VNMAXF Maximum phase-to-neutral voltage magnitude
VNMINF Minimum phase-to-neutral voltage magnitude
VPMAXF Maximum phase-to-phase voltage magnitude
VPMINF Minimum phase-to-phase voltage magnitude
3V2FIM
a
a
These quantities are only available for the overvoltage (59) elements.
Filtered instantaneous negative-sequence voltage magnitude
3V0FIM
a
Filtered instantaneous zero-sequence voltage magnitude
Setting Prompt Range Default Category
27PkP1 U/V Element k Level 1 P/U
([RANGE] V, sec)
2.00–300 20.00 Group
Setting Prompt Range Default Category
27PkP2 U/V Element k Level 2 P/U
([RANGE] V, sec)
0.25–300 15 Group