Hitachi Relion 670 Series Applications Manual page 180

Section 8
Current protection
No. StartMode
26 FollowStart&M
ode
27 FollowStart&M
ode
*) Set level depends on selected BuTripMode, that is, set level can be either IPh> or IN> or both.
8.8 Overcurrent protection with binary release BRPTOC
8.8.1 Function revision history
Document
revision
A
B
C
D
E
F
G
H
M
N
8.8.2 Identification
Function description
Overcurrent protection with binary
release
8.8.3 Application
Overcurrent protection with binary release (BRPTOC) is a simple, non-directional two-phase
overcurrent protection function with definite time delay. A single step is available within the function.
174
RetripMode t1 and t2 initiated
with
UseFunctionMo external START and
de current above set
level
Always external START and
current above set
level
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.5 Setting MeasType to select between DFT, Peak, and Peak to peak measurement modes
is added.
2.2.6 -
2.2.6 -
© 2017 - 2023 Hitachi Energy. All rights reserved
When t1 has
elapsed, TRRET will
be given if current is
above set level of
IPh> and higher than
I>BlkCBPos or
CBCLDLx input has
logical value one
when current is
smaller than
I>BlkCBPos
be given if external
START is present
IEC 61850 IEC 60617
identification identification
BRPTOC
2I>
IEC16000104 V1 EN-US
1MRK506375-UEN Rev. N
When t2 or t2MPh t1 and t2 and t2MPh
has elapsed, TRBU will be stopped
will be given if (reset) if
current is above set current is below set
level *) and higher level *) or external
than I>BlkCBPos or START disappears
CBCLDLx input has
logical value one
when current is
smaller than
I>BlkCBPos
current is above set current is below set
level *) and higher level *) or external
than I>BlkCBPos or START disappears
CBCLDLx input has
logical value one
when current is
smaller than
I>BlkCBPos
GUID-0C91A3D4-EDB4-4CE8-85AF-44901F81B702 v1
GUID-4FFCEA56-38BC-4B5A-BADB-6C1F7C2249F3 v3
GUID-FB950979-9387-43A7-B1D7-D5D392EA6638 v4
ANSI/IEEE C37.2
device number
50
GUID-7EC7CF0B-41B6-4383-B60C-90F39464169B v3
Railway application RER670
Application manual