Supervision functions
Table 94. Circuit-breaker condition monitoring (SSCBR)
Characteristic
Value
Current measuring accuracy
±1.5% or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0%
(at currents in the range of 10…40 × I
n
)
Operate time accuracy
±1.0% of the set value or ±20 ms
Travelling time measurement
+10 ms / -0 ms
Table 95. Current circuit supervision (CCSPVC)
Characteristic
Value
Operate time
1)
<30 ms
1)
Including the delay of the output contact
Table 96. Current circuit supervision (CCSPVC) main settings
Parameter
Function
Value (Range)
Step
Start value
CCSPVC
0.05...0.20 × I
n
0.01
Max operate current
CCSPVC
1.00...5.00 × I
n
0.01
Table 97. Fuse failure supervision (SEQSPVC)
Characteristic
Value
Operate time
1)
NPS function
U
Fault
= 1.1 × set
Neg Seq voltage
Lev
<33 ms
U
Fault
= 5.0 × set
Neg Seq voltage
Lev
<18 ms
Delta function
ΔU = 1.1 × set
Voltage change rate <30 ms
ΔU = 2.0 × set
Voltage change rate <24 ms
1)
Includes the delay of the signal output contact, f
n
= 50 Hz, fault voltage with nominal frequency injected from random phase angle, results based on statistical distribution of 1000
measurements
Table 98. Runtime counter for machines and devices (MDSOPT)
Description
Value
Motor runtime measurement accuracy
1)
±0.5%
1)
Of the reading, for a stand-alone relay, without time synchronization
Generator and Interconnection Protection
1MRS758279 B
REG615
Product version: 5.0 FP1
ABB
57
