Description Value
Negative-sequence
overcurrent protection
Operating range 4...200 A (isolated/compensated network)
200...1000 A (solidly grounded/low-impedance
network)
Accuracy
Depending on the nominal frequency of the
current measured: f = f
n
Current:
±1.5% of the set value or ±0.02 A
I
Fault
= 2 × set value = <36 ms
I
Fault
= 10 × set value = <30 ms
Operate time: ±1.0% of the set value or ±20 ms
Multifrequency
admittance-based
earth-fault indication
Operating range
480 V...28.8 kV
Accuracy Depending on the nominal frequency of the
current measured: f
n
Voltage:
±5% in the range of 480 V...9.6 kV
±0.5% in the range of 9.6...28.8 kV
Operate time:
±1.0% of the set value or ±20 ms
Table 196: Current sensor module (SIM4F)
Description Value
Preferred ABB sensors Current sensors KECA 80 C85 or KECA 80 D85
Current measurement Range 4...8000 A
Accuracy ±5% or ±1 A in the range of 4...80 A
±1% in the range of 80...4800 A
±10% in the range of 4800...8000 A
Line frequency
measurement
Range 50 or 60 Hz
Accuracy For 50 Hz, ±50 mHz
For 60 Hz, ±60 mHz
Average operating current Average operating current according to selection:
3 min/10 min/15 min/1 hour/2 hours/24 hours
Peak current Peak values for 1 day, 1 week, 1 month, 1 year
Non-directional
overcurrent fault
detection
Operating range
50...2000 A
Accuracy Depending on the nominal frequency of the
current measured: f
n
±1.5% of the set value
Operate time: ±1.0% of the set value or ±20 ms
Non-directional earth-
fault detection
Operating range 4...200 A (isolated/compensated network)
200...1000 A (solidly grounded/low-impedance
network)
Accuracy
Depending on the nominal frequency of the
current measured: f
n
±10% of the set value in the range of 4...25 A
±1.5% of the set value in the range of >25...1000 A
Operate time: ±1.0% of the set value or ±20 ms
(Current measurement based on internal
calculation)
Table continues on next page
Section 10 1MRS757488 H
Technical data
290 RIO600
Installation and Commissioning Manual
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