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D–12
M-3410A Instruction Book
Negative Sequence Current (% of Nominal Value)
Time (Seconds)
Pickup Setting Range
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
1
0.6
0.4
0.2
0.1
4 5
6
8 10
20
40
60
80 100
150 200
300 400 500 600 800 1000 1500 2000 3000 4000
K
95
To 65,500 cycles
50
25
10
5
2
1
Definite Maximum
Time Setting Range
I22t=K
Definite
Minimum
Time
*
Q
Q
Q
Q
Q
NOTE
: When the phase current exceeds 3X
I
nominal, the operating times will be greater than those
shown.
* 0.24 seconds for 50 Hz units.
Figure D-9
(46) Negative Sequence Overcurrent Inverse Time Curves for Generator Protection
Summary of Contents for Syncrocloser M-3410A
Page 1: ...Instruction Book M 3410A Intertie Generator Protection Relay ...
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