Product Description - ABB CEM11-FBP.35 Manual

C E M 1 1 - F B P. X X X E A R T H L E A K A G E M O N I T O R M A N U A L
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Product description

Setting the earth fault current
The current threshold when the CEM11 signals an earth fault can be adjusted with a rotary switch.
The test position can be used to test the CEM11 and connected devices like the UMC100.3. This allows simple
verification if the earth fault related settings in the UMC100.3 are all done correctly and e.g. lead to a trip.
The following tables show the current thresholds for each device variant.
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CEM11-FBP.20
Rotary switch set to
0
1
2
3
4
5
6
7
8
9
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CEM11-FBP.35
Rotary switch set to
0
1
2
3
4
5
6
7
8
9
Earth fault current threshold [mA]
80
300
550
750
1000
1300
1500
1700
for functional test
for functional test
Earth fault current threshold [mA]
100
500
1000
1400
2000
2400
3000
3400
for functional test
for functional test
Comment
Tolerance ± 30 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Comment
Tolerance ± 30 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
Tolerance ± 10 %
5