ABB REB650, Technical Manual

Page: 162 / 504

Figure 61: Simplified logic diagram for fuse failure supervision function, Main logic
9.1.8 Technical data
Table 88: SDDRFUF technical data
Function Range or value Accuracy
Operate voltage, zero sequence (1-100)% of VBase ± 1.0% of V
n
Operate current, zero sequence (1–100)% of IBase ± 1.0% of I
n
Operate voltage, negative sequence (1–100)% of VBase ± 0.5% of V
n
Operate current, negative sequence (1–100)% of IBase ± 1.0% of I
n
Operate voltage change pickup (1–100)% of VBase ± 5.0% of V
n
Operate current change pickup (1–100)% of IBase ± 5.0% of I
n
Operate phase voltage (1-100)% of VBase ± 0.5% of V
n
Operate phase current (1-100)% of IBase ± 1.0% of I
n
Operate phase dead line voltage (1-100)% of VBase ± 0.5% of V
n
Operate phase dead line current (1-100)% of IBase ± 1.0% of I
n
9.2 Breaker close/trip circuit monitoring TCSSCBR
9.2.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Breaker close/trip circuit monitoring TCSSCBR - -
9.2.2 Functionality
The trip circuit monitoring function TCSSCBR is designed for supervision of control
circuits. A fault in a control circuit is detected by using a dedicated output contact that
contains the monitoring functionality.
The function picks up and trips when TCSSCBR detects a trip circuit failure. The trip
time characteristic for the function is of definite time (DT) type. The function trips
after a predefined operating time and resets when the fault disappears.
Section 9
1MRK 505 277-UUS C
Secondary system supervision
156
Technical Manual