ERL L-PRO 4000, User Manual

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Appendix A IED Specifications
D02706R02.30 L-PRO 4000 User Manual Appendix A-9
A.2 Frequency Element Operating Time Curves
Figure A.4: Time delay Error at 0.2 seconds, Figure A.5: Time Delay Error at
1 second and Figure A.6: Time Delay Error at 10 seconds show operating times
for the relay frequency rate of change elements at different time delay settings
and rate of change settings.
The diagrams show operating times at each test point including output contact
operate time. Operating times are the same for both 50 Hz and 60 Hz.
Figure A.4: Time delay Error at 0.2 seconds
Figure A.5: Time Delay Error at 1 second
Time Delay Error 0.2s
0
15
30
45
60
75
90
105
120
135
150
165
180
195
0 1 2 3 4 5 6 7 8 9 10 11
Hz/s Pickup Multiple
D
e
la
y
e
rror
(m
s
)
0.1 Hz/s
1 Hz/s
10 Hz/s
Time Delay Error 1s
0
15
30
45
60
75
90
105
120
135
150
165
180
195
0 1 2 3 4 5 6 7 8 9 10 11
Multiple of Hz/s Pickup
Ti
m
e
D
e
la
y
E
rror (
m
s
)
0.1 Hz/s
1 Hz/s
10 Hz/s