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Figure 93:
Simplified logic diagram for fuse failure supervision function, Main logic
9.2.8
Technical data
Table 160:
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
9.3
Breaker close/trip circuit monitoring TCSSCBR
9.3.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Breaker close/trip circuit monitoring
TCSSCBR
-
-
9.3.2
Functionality
The trip circuit supervision function TCSSCBR is designed to supervise the control circuit
of the circuit breaker. The trip circuit supervision generates a current of approximately 1
mA through the supervised control circuit. The validity supervision of a control circuit is
provided for power output contacts T1, T2 and T3.
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 511 287-UUS A
Secondary system supervision
218
Technical manual
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