ABB Rellon 620 Series Technical Manual

1MAC309294-MB F Section 4
Protection functions
RER620 195
Technical Manual
If a load sensitive to overvoltage remains connected, it leads to equipment damage.
It is essential to provide power frequency overvoltage protection, in the form of time
delayed element, either IDMT or DT to prevent equipment damage.
4.3.1.7 Signals
Table 203: 59-1/2 Input signals
Table 204: 59-1/2 Output signals
4.3.1.8 Settings
Table 205: 59-1/2 Group settings
Name Type Default Description
V_A_AB SIGNAL 0 Phase to ground voltage A or phase to phase voltage AB
V_B_BC SIGNAL 0 Phase to ground voltage B or phase to phase voltage BC
V_C_CA SIGNAL 0 Phase to ground voltage C or phase to phase voltage CA
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
Name Type Description
OPERATE BOOLEAN Trip
OPR_A_AB BOOLEAN Trip output of Phase A (or Phase AB)
OPR_B_BC BOOLEAN Trip output of Phase B (or Phase BC)
OPR_C_CA BOOLEAN Trip output of Phase C (or Phase CA)
START BOOLEAN Pickup
ST_A_AB BOOLEAN Pickup output of Phase A (or Phase AB)
ST_B_BC BOOLEAN Pickup output of Phase B (or Phase BC)
ST_C_CA BOOLEAN Pickup output of Phase C (or Phase CA)
Parameter Values (Range) Unit Step Default Description
Pickup value 0.05...1.60 xVn 0.01 1.10 Pickup value
Time multiplier 0.05...15.00 0.05 1.00 Time multiplier in IEC/ANSI IDMT curves
Trip delay time 40...300000 ms 10 40 Trip delay time
Operating curve type 5=ANSI DT
15=IEC DT
17=Inv. Curve A
18=Inv. Curve B
19=Inv. Curve C
20=Programmable
5=ANSI DT Selection of time delay curve type
Type of reset curve 1=Immediate
2=Def time reset
-1=DT Lin decr rst
1=Immediate Selection of reset curve type

ABB Rellon 620 Series Specifications

General

Brand	ABB
Model	Rellon 620 Series
Category	Controller
Language	English