AEG ME09 - Short Time Delay STDB; Selective Instantaneous Protection (1); Table 2.6: HSIOC devices

The Mpro S & N trip unit types oīer a Short Time Delay funcƟon
with both a slope seƫng and a Įxed delay band seƫng. The
slope and delay are independently selectable. The slope seƫng
consists of three I²t slopes (1, 2, 3) and a Įxed delay. The Įxed
delay bands have17 constant Ɵme bands.
The minimum and maximum delay Ɵmes are indicated in table
2.5.
The bands of both the slope and Įxed delay types are depicted
as Time Current Diagram in appendix 6.1 of this ApplicaƟon
manual.
Installed in the Trip Units types Mpro S and Mpro N the third
SETUP mode display is the adjustable SelecƟve Instantaneous
over current protecƟon.
This device causes an undelayed breaker trip when the chosen
current level (Ii) and proper waveform is reached. The pickup
value may be set in steps of 0.5 x the set user current value Ie
from 2.0 xIe to 15 xIe.
(limited to a maximum 13 x Ie on the 6400Atype). The
Instantaneous pickup accuracy is 10%. The Mpro S and Mpro N
trip units have a user-selectable switchable instantaneous over
current , an addiƟonal value of OFF appears at the end of the
lisƟng of numerical values. Choose this seƫng to disable
instantaneous protecƟon.
The bands are depicted as Time Current Diagram
in appendix 6.1 of this ApplicaƟon manual.
2.2.3.2.1 ܌ჽ้ STDB
DŽჽ׿ڦ܌ୟԍࢺჽ้Dž
2.2.3.3 ჋ስႠຨ้ԍࢺ (I)
Mpro S ࢅ N! ႙ۉጱྃഗᆶ܌ჽ้ࠀీLj৊ႜၽ୲
ยዃࢅࠦۨჽ׿ݔྷยዃăၽ୲ࢅჽ׿߳ጲ܀૬Ljᅜ
჋ስăၽ୲ยዃԈઔ!4!߲!I²u!ၽ୲DŽ2Ă3Ă4Džࢅ!2!߲
ࠦۨჽ׿ăࠦۨჽ׿ݔྷᆶ!28!้߲࢛ۨݔྷă
ፌ܌ࢅፌ׊ჽ׿้ሞ՗!3/6!ዐଚă
ၽ୲ࢅࠦۨჽ׿ڦݔྷሞԨᆌᆩ๮֩޹୤! 7/2ዐࣼ዆ྺ
้ۉୁ཮ă
ҾጎሞNqsp!T!ࢅ!Nqsp!O!႙ۉጱྃഗዐLjڼෙ߲!
TFUVQDŽยዃDžఇ๕၂๖ೡྺۙবڦ჋ስႠຨ้ࡗ
ۉୁԍࢺă
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ࣷة݀ுᆶჽ้ڦ܏ୟഗཌቄă๔ۯۉୁኵᅜยዃྺ
օ׊!1/6!y!ยዃڦᆩࢽۉୁኵ!JfLjݔྷྺ!3/1!y!Jf!
ڟ!26!y!JfăDŽ7511B!႙ጎዃฉፌٷྺ!24!y!JfDž
ຨ้๔ۯۉୁ৛ඓ܈ྺ!21&ăNqsp!T!ࢅ!Nqsp!O႙
ۉጱྃഗᆶᆩࢽᅜ჋ስڦገ࣑ຨ้ࡗۉୁLj޹
ڦ! PGGDŽ܏Džኵ၄ሞຕኵଚ՗఍܋ă჋ስ޿ย
ዃ্ᆩຨ้ԍࢺă
Ԩᆌᆩ๮֩޹୤!7/2!ዐݔྷࣼ዆ྺ้ۉୁ཮ă
TRIP UNIT
ཌቄڇᇮ
֡ፕ
2.2
2.2-03
2.2.3.2.1 Short Time Delay STDB
(Delay on delayed Short Circuit ProtecƟon)
2.2.3.3 SelecƟve Instantaneous ProtecƟon (I)
՗!2.5ǖ߲߳჋ۨڦ!STDB!ݔྷዐኸۨڪူ܌้ཌቄ้!－ I²t!܏Ljڇ࿋ྺࡹ௱!(²)
Table 2.5 : Short Time tripping Ɵmes at indicated levels per selected STDB band -I²t OFF. in ms (2)
x Ir Min 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Max
1.5 x ± 10%
ཌቄ
90 100 110 120 170 190 240 270 300 340 400 450 600 700 800 900 1000
փཌቄ
30 40 50 60 110 130 180 210 240 280 340 390 540 640 740 840 940
12 x ± 10%
ཌቄ
90 100 110 120 170 190 240 270 300 340 400 450 600 700 800 900 1000
փཌቄ
30 40 50 60 110 130 180 210 240 280 340 390 540 640 740 840 940
՗ 2.6：HSIOC ጎዃ ยዃኵ
(rm s )
Ҿጎሞጲۯ႙ยԢዐڦ
HSIOC ጎዃ߁࠵ǖ
઀ڪ4
ME 50M...ME 64M
100.000 A
100.000 A
Table 2.6: HSIOC devices Set values (rms)
Overview of installed
HSIOC devices in
Automatic types:
Envelope 3
ME 50M...ME 64M
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