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1MAC050144-MB C
Section 6
Supervision functions
615 series ANSI
415
Technical Manual
Section 6
Supervision functions
6.1
Circuit-breaker condition monitoring 52CM
6.1.1
Identification
6.1.2
Function block
Figure 210:
Function block
6.1.3
Functionality
The circuit breaker condition monitoring function 52CM is used to monitor different
parameters of the circuit breaker. The breaker requires maintenance when the number of
operations has reached a predefined value. For proper functioning of the circuit breaker, it
is essential to monitor the circuit breaker operation, spring charge indication, breaker wear,
travel time, number of operation cycles and accumulated energy. The energy is calculated
from the measured input currents as a sum of I
y
t values. Alarms are generated when the
calculated values exceed the threshold settings.
The function contains a blocking functionality. It is possible to block the function outputs,
if desired.
6.1.4
Operation principle
The circuit breaker condition monitoring function includes different metering and
monitoring subfunctions. The functions can be enabled and disabled with the
Operation
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Circuit breaker condition monitoring
SSCBR
CBCM
52CM
52CM
TRV_T_OP_ALM
TRV_T_CL_ALM
SPR_CHR_ALM
OPR_ALM
OPR_LO
IPOW_ALM
IPOW_LO
CB-LIFE_ALM
MON_ALM
PRES_ALM
PRES_LO
OPENPOS
INVALIDPOS
CLOSEPOS
BLOCK
POSOPEN
POSCLOSE
PRES_ALM_IN
PRES_LO_IN
SPR_CHR_ST
SPR_CHR
RST_IPOW
RST_CB_WEAR
RST_TRV_T
RST_SPR_T
I_A
I_B
I_C
Содержание 615 Series ANSI
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Страница 707: ...Section 15 1MAC050144 MB C Applicable standards and regulations 700 615 series ANSI Technical Manual ...
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