7.1.9 Technical data
Table 561: SSCBR Technical data
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
7.1.10 Technical revision history
Table 562: SSCBR Technical revision history
Technical revision Change
B Added the possibility to reset spring charge time
and breaker travel times
C Removed the DIFTRVTOPALM and
DIFTRVTCLALM outputs and the corresponding
Open Dif alarm time
and
Close Dif alarm time
setting parameters
D
The
Operation cycle
setting parameter renamed to
Initial CB Rmn life
. The IPOW_A (_B, _C) range
changed.
E
Maximum value of initial circuit breaker remaining
life time setting (
Initial CB Rmn life
) changed from
9999 to 99999. Added support for measuring
circuit breaker travelling time from opening/closing
command and auxiliary contact state signal
change.
F
Alarm Op number
range increased from 9999 to
99999.
Lockout Op
number setting range
increased from 9999 to 99999.
Counter initial
value
setting range increased from 9999 to 99999.
Section 7 1MRS758755 A
Condition monitoring functions
552 REC615 and RER615
Technical Manual
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