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Condition and supervision functions
—
Table 64. Circuit-breaker condition monitoring (SSCBR)
Characteristic
Current measuring accuracy
Operate time accuracy
Travelling time measurement
—
Table 65. Current circuit supervision (CCSPVC)
Characteristic
Operate time
(1)
1) Including the delay of the output contact
—
Table 66. Current circuit supervision (CCSPVC) main settings
Parameter
Start value
Max operate current
—
Table 67. Fuse failure supervision (SEQSPVC)
Parameter
Operate time
(1)
1 Includes the delay of the signal output contact, fn = 50 Hz, fault voltage with nominal frequency injected from random phase angle, results based on statistical distribution of 1000
measurements
—
Table 68. Runtime counter for machines and devices (MDSOPT)
Description
Motor runtime measurement accuracy
1 Of the reading, for a stand-alone relay, without time synchronization
Function
CCSPVC
CCSPVC
NPS function
Delta function
(1)
Value
±1.5% or ±0.002 × I
n
(at currents in the range of 0.1...10 × I
±5.0%
(at currents in the range of 10...40 × I
±1.0% of the set value or ±20 ms
+10 ms / -0 ms
Value
<30 ms
Value (range)
0.05...0.20 × I
n
1.00...5.00 × I
n
Value
U
= 1.1 × set Neg Seq voltage Lev
Fault
U
= 5.0 × set Neg Seq voltage Lev
Fault
ΔU = 1.1 × set Voltage change rate
ΔU = 2.0 × set Voltage change rate
Value
±0.5%
)
n
)
n
Step
0.01
0.01
<33 ms
<18 ms
<30 ms
<24 ms
39
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