Areva MiCOM P921 - 7. Protection Element Settings

Technical Guide P92x/EN RS/E11
Test Report
MiCOM P921-P922-P923 Page 17/22
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7. PROTECTION ELEMENT SETTINGS
The following notations are used in all of the tables below:
H1 = type 1 hardware corresponding to the 57-130V range of inputs
H2 = type 2 hardware corresponding to the 220-480V range of inputs
7.1 Setting group used (P922-P923)
Group 1 Yes/No*
Group 2 Yes/No*
7.2 “Phase undervoltage protection” function
Settings
[27]
UNDERVOLTAGE
Default values
Group 1 Group 2 (P922-P923)
1
st
stage activated No No / AND / OR * No / AND / OR *
1
st
undervoltage stage 5.00V if H1
20.0V if H2
VV
Time delay type DMT DMT/IDMT * DMT/IDMT *
TMS 1.0
tRESET V< 0.01s Secs Secs
tV<= 0.04s Secs Secs
2
nd
stage activated No No / AND / OR * No / AND / OR *
2
nd
undervoltage
stage
5.00V if H1
20.0V if H2
VV
tV<<= 0.01s Secs Secs
3
rd
stage activated No No / AND / OR * No / AND / OR *
3
rd
undervoltage stage 5.00V if H1
20.0V if H2
VV
tV<<<= 0.01s Secs Secs
Hysteresis 1.02