ABB Relion 615 series - Using the HMI: Local and Web Interfaces; Local HMI Operations: Login, Navigation, and Settings

Condition and supervision functions
Table 57. 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 58. 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 59. 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
Transformer Protection and Control
1MRS756891 M
RET615
Product version: 5.0 FP1
ABB 47