ABB Relion 670 series - Page 610

ABB Relion 670 series

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SealIn = On

All UL < USealIn<

Any UL < UsealIn<

t

5 s

AND

3

P

H

MCBOP

All UL > UsealIn<

t

60 s

CBCLOSED

BLOCK

AND

TEST

TEST ACTIVE

AND

BlocFuse = Yes

OpMode

AND

t

200 ms

AND

OR

DISCPOS

BLKU

BLKZ

AND

AND

FuseFailDetZeroSeq

UZsIZs OR UNsINs

UZsIZs AND UNsINs

UZsIZs

UNsINs

OptimZsNs

AND

FuseFailDetNegSeq

OR

AND

AND

CurrZeroSeq

CurrNegSeq

a

b

a>b

OR

AND

AND

AND

FuseFailDetDUDI

AND

OpDUDI = On

DeadLineDet1Ph

OR

OR

OR

OR

AND

VoltZeroSeq

VoltNegSeq

t

5 s

AllCurrLow

t

150 ms

intBlock

Fuse failure detection

Main logic

BLKTRIP

AND

t

100 ms

OR

t

20 ms

OR

IEC10000033-2-en.vsd

OR

FusefailStarted

IEC10000033 V2 EN

Section 11 1MRK505222-UUS C

Secondary system supervision

604

Technical reference manual

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