5.1.9 Technical data
Table 675: INR Technical data
Characteristic
Value
Operation accuracy At the frequency f = f
n
Current measurement:
±1.5% of the set value or ±0.002 × I
n
Ratio I2f/I1f measurement:
±5.0% of the set value
Reset time
+35 ms / -0 ms
Reset ratio Typically 0.96
Trip time accuracy +35 ms / -0 ms
5.1.10 Technical revision history
Table 676: INR Technical revision history
Technical revision Change
B Internal improvement
C Internal improvement
5.2 Circuit breaker failure protection 50BF
5.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Circuit breaker failure protection CCBRBRF 3I>/Io>BF 50BF
5.2.2 Function block
GUID-12D6BD6F-2B26-453D-B62F-FC134EC98931 V3 EN
Figure 387: Function block
Section 5 1MAC059074-MB A
Protection related functions
772 615 series ANSI
Technical Manual