Download Print this page

ABB Relion 670 Series Technical Reference Manual page 610

Line differential protection ansi

Hide thumbs Also See for Relion 670 Series:

Technical manual (1432 pages)

,

Applications manual (944 pages)

,

Technical reference manual (752 pages)

page of 1232

/ 1232
Contents
Table of Contents
Bookmarks

Table of Contents

Advertisement

Section 11

Secondary system supervision

604

Fuse failure detection

Main logic

TEST

TEST ACTIVE

AND

BlocFuse = Yes

BLOCK

20 ms

BLKTRIP

AND

t

All UL < USealIn<

SealIn = On

Any UL < UsealIn<

FuseFailDetDUDI

AND

OpDUDI = On

FuseFailDetZeroSeq

AND

AND

FuseFailDetNegSeq

AND

UNsINs

UZsIZs

UZsIZs OR UNsINs

OpMode

UZsIZs AND UNsINs

OptimZsNs

CurrZeroSeq

a

a>b

CurrNegSeq

b

DeadLineDet1Ph

MCBOP

60 s

t

All UL > UsealIn<

VoltZeroSeq

VoltNegSeq

OR

AllCurrLow

CBCLOSED

DISCPOS

IEC10000033 V2 EN

OR

100 ms

t

FusefailStarted

OR

AND

AND

5 s

OR

t

OR

OR

AND

AND

200 ms

AND

t

150 ms

t

OR

AND

5 s

t

1MRK505222-UUS C

intBlock

AND

AND

OR

AND

OR

AND

OR

IEC10000033-2-en.vsd

Technical reference manual

BLKZ

BLKU

Table of Contents

Advertisement

Table of Contents

Related Products for ABB Relion 670 Series

This manual is also suitable for:

Relion red670