tTempLockOut
: This is used to set the time delay for a temperature lockout
indication, given in s.
tResetLevelAlm
: This is used for the level alarm indication to reset after a set time
delay in s.
tResetLevelLO
: This is used for the level lockout indication to reset after a set time
delay in s.
tResetTempLO
: This is used for the temperature lockout indication to reset after a
set time delay in s.
tResetTempAlm
: This is used for the temperature alarm indication to reset after a set
time delay in s.
10.4
Breaker monitoring SSCBR
10.4.1
Identification
GUID-0FC081B2-0BC8-4EB8-9529-B941E51F18EE v7
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Breaker monitoring
SSCBR
-
-
10.4.2
Application
GUID-45572680-3A39-4B3C-8639-4E4C5A95AA26 v9
The circuit breaker maintenance is usually based on regular time intervals or the
number of operations performed. This has some disadvantages because there could
be a number of abnormal operations or few operations with high-level currents
within the predetermined maintenance interval. Hence, condition-based
maintenance scheduling is an optimum solution in assessing the condition of circuit
breakers.
Circuit breaker contact travel time
Auxiliary contacts provide information about the mechanical operation, opening
time and closing time of a breaker. Detecting an excessive traveling time is
essential to indicate the need for maintenance of the circuit breaker mechanism.
The excessive travel time can be due to problems in the driving mechanism or
failures of the contacts.
Circuit breaker status
Monitoring the breaker status ensures proper functioning of the features within the
protection relay such as breaker control, breaker failure and autoreclosing. The
breaker status is monitored using breaker auxiliary contacts. The breaker status is
indicated by the binary outputs. These signals indicate whether the circuit breaker
is in an open, closed or error state.
Section 10
1MRK 511 423-UEN A
Monitoring
206
Bay control REC650 2.2 IEC
Application manual
