Parameter: Setting
•
Default setting: 0.2 x I
n
(0.2 I
rated
)
The setting to be appropriate to the respective application.
A pickup value of 10 % is a practicable value for fault indications of electrical machines.
Parameter: Delay
•
Default setting: 0 s
No specific recommendation is given: The setting to be appropriate to the respective application.
Settings Menu
Functions > Function Config
Parameter Range Settings
Default Gn1 Gn2 Gn3 Gn4
37 Undercurrent Enabled
Disabled
Disabled
Functions > Protection > 37 > Gn 37G-n
Parameter Range Settings
Default Gn1 Gn2 Gn3 Gn4
Element Enabled
Disabled
Disabled
Setting 0.005 to 5 I
rated
, Δ 0.001 I
rated
0.2 ⋅
I
rated
Delay 0 to 20 s Δ 0.01 s
20 to 100 s Δ 0.1 s
100 to 1000 s Δ 1 s
1000 to 10000 s Δ 10 s
10000 to 14400 s Δ 100 s
0 s
IEC 61850 Functional Information Mapping
A37GPTUC*.Mod
Information
37G Undercurrent Enabled (Function Config) x 0 1 1
Element Disabled 1 x 0 0
Element Inhibited x x 1 0
A37GPTUC*.Mod.stVal 5 5 2 1
Device Annunciation ON/TRUE: 1
OFF/FALSE: 0
Irrelevant: x
IEC 61850 Value ON: 1
BLOCKED: 2
TEST: 3
TEST/BLOCKED: 4
OFF: 5
5.6.5
5.6.6
Protection and Automation Functions
5.6 37G Undercurrent Earth Fault – Measured
180 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019