Technical Data; Functionality - ABB REC650 ANSI Technical Manual

1MRK 511 287-UUS A
6.1.8
6.2
6.2.1
6.2.2
Technical manual

Technical data

Table 29: PHPIOC (50) technical data
Function
Operate current
Reset ratio
Operate time
Reset time
Critical impulse time
Operate time
Reset time
Critical impulse time
Dynamic overreach
Four step phase overcurrent protection 3-phase output
OC4PTOC (51/67)
Identification
Function description
Four step phase overcurrent protection
3-phase output

Functionality

The four step phase overcurrent protection function, 3-phase output OC4PTOC (51/67)
has independent inverse time delay settings for step 1 and 4. Step 2 and 3 are always
definite time delayed.
All IEC and ANSI inverse time characteristics are available.
The directional function is voltage polarized with memory. The function can be set to be
directional or non-directional independently for each of the steps.
Range or value
(5-2500)% of lBase
> 95%
20 ms typically at 0 to 2 x I
set
30 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
10 ms typically at 0 to 5 x I
set
40 ms typically at 5 to 0 x I
set
2 ms typically at 0 to 5 x I
set
< 5% at t = 100 ms
IEC 61850 IEC 60617
identification identification
OC4PTOC
TOC-REVA V1 EN
Section 6
Current protection
Accuracy
± 1.0% of I at I £ I
n n
± 1.0% of I at I > I
n
-
-
-
-
-
-
-
-
ANSI/IEEE C37.2
device number
51/67
3I>
4
alt
4
85