ABB REB670 Series Applications Manual page 196

Section 7
Current protection
No. StartMode
21 LatchedStart
22 FollowStart
23 FollowStart
24 FollowStart
25 FollowStart&
Mode
26 FollowStart&
Mode
27 FollowStart&
Mode
190
RetripMode t1 and t2
initiated with
Always external START
Off external START
UseFunction external START
Mode
Always external START
Off external START
and current
above set level
UseFunction external START
Mode and current
above set level
Always external START
and current
above set level
When t1 has When t2 has
elapsed, TRRET will elapsed, TRBU will
be given if
always be given current is above set
level of IPh> and
higher than
I>BlkCBPos or
CBCLD input has
logical value one
when current is
smaller than
I>BlkCBPos
never be given current is above set
level of IPh> and
higher than
I>BlkCBPos or
CBCLD input has
logical value one
when current is
smaller than
I>BlkCBPos
be given if current current is above set
is above set level level of IPh> and
of IPh> and higher higher than
than I>BlkCBPos I>BlkCBPos or
or CBCLD input CBCLD input has
has logical value logical value one
one when current when current is
is smaller than smaller than
I>BlkCBPos I>BlkCBPos
be given if current is above set
external START is level of IPh> and
present higher than
I>BlkCBPos or
CBCLD input has
logical value one
when current is
smaller than
I>BlkCBPos
never be given current is above set
level of IPh> and
higher than
I>BlkCBPos or
CBCLD input has
logical value one
when current is
smaller than
I>BlkCBPos
be given if current current is above set
is above set level level of IPh> and
of IPh> and higher higher than
than I>BlkCBPos I>BlkCBPos or
or CBCLD input CBCLD input has
has logical value logical value one
one when current when current is
is smaller than smaller than
I>BlkCBPos I>BlkCBPos
be given if current is above set
external START is level of IPh> and
present higher than
I>BlkCBPos or
CBCLD input has
logical value one
when current is
smaller than
I>BlkCBPos
1MRK 505 370-UEN D
t1 and t2 will be
stopped
(reset) if
t1 and (t2 or t2MPh)
and 150ms expires
and current is below
set level of IPh> or
CBCLD input has
logical value zero
external START
disappears
external START
disappears
external START
disappears
current is below set
level of IPh> or
external START
disappears
current is below set
level of IPh> or
external START
disappears
current is below set
level of IPh> or
external START
disappears
Busbar protection REB670
Application manual