Identification - ABB REG650 Technical Manual

1MRK 502 043-UUS B
Section 8
8.1
8.1.1
8.1.2
Technical Manual
Current protection
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.
A 2nd harmonic blocking can be set individually for each step.
IEC 61850 IEC 60617
identification identification
OC4PTOC
3I>
4
alt
4
TOC-REVA V1 EN
Section 8
Current protection
ANSI/IEEE C37.2
device number
51/67
167