Function Block - ABB REG650 Technical Manual

Section 9
Voltage protection
9.3.3
9.3.4
266
Two step residual overvoltage protection ROV2PTOV (59N) function calculates the
residual voltage from the three-phase voltage input transformers or measures it from a
single voltage input transformer fed from a broken delta or neutral point voltage
transformer.
ROV2PTOV (59N) has two voltage steps, where step 1 can be set as inverse or definite
time delayed. Step 2 is always definite time delayed.

Function block

ROV2PTOV (59N)
V3P* TRIP
BLOCK TRST1
BLK1 TRST2
BLK2 PICKUP
PU_ST1
PU_ST2
ANSI09000273_1_en.vsd
ANSI09000273 V1 EN
Figure 123: ROV2PTOV (59N) function block
Signals
Table 149: ROV2PTOV (59N) Input signals
Name Type
V3P GROUP
SIGNAL
BLOCK BOOLEAN
BLK1 BOOLEAN
BLK2 BOOLEAN
Table 150: ROV2PTOV (59N) Output signals
Name Type
TRIP BOOLEAN
TRST1 BOOLEAN
TRST2 BOOLEAN
PICKUP BOOLEAN
PU_ST1 BOOLEAN
PU_ST2 BOOLEAN
Default Description
- Three phase group signal for voltage inputs
0 Block of function
0 Block of step 1
0 Block of step 2
Description
Common trip signal
Trip signal from step 1
Trip signal from step 2
General pickup signal
Start signal from step 1
Start signal from step 2
1MRK 502 043-UUS B
Technical Manual