Section 4
1MAC050144-MB C
Protection functions
228
615 series ANSI
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.
4.2.1.7
Signals
Table 223: 59-1/2 Input signals
Table 224: 59-1/2 Output signals
4.2.1.8
Settings
Table 225: 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
TRIP
BOOLEAN
Trip
PICKUP
BOOLEAN
Pickup
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
Summary of Contents for 615 Series ANSI
Page 1: ...Relion Protection and Control 615 series ANSI Technical Manual ...
Page 2: ......
Page 29: ...1MAC050144 MB C Section 615 series ANSI 22 Technical Manual ...
Page 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Page 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Page 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Page 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
Page 712: ......