ABB REO 517 Applications Manual page 103

Two step definite and inverse time
delayed phase overcurrent protection
(TOC2)
Characteristic = Def
Characteristic = NI/VI/EI/RI
I>Low
IL1; IL2
I>High
Operation Low = On
Operation High = On
TOC2-BLOCK
TOC2-BLKTRLS
TOC2-BLKTRHS
TEST
TEST-ACTIVE
BlockTOC2 = Yes
)LJXUH  6LPSOLILHG ORJLF GLDJUDP IRU GHILQLWH DQG LQYHUVH WLPHGHOD\HG RYHUFXUUHQW
&
I>Inv, k
tMinInv
t
&
&
50ms
≥1
t
&
IXQFWLRQ
tLow
≥1
t
&
tHigh
&
t
&KDSWHU 
&XUUHQW
TOC2-TRLS
&
TOC2-STLS
TOC2-TRHS
&
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