Siemens SENTRON 3WL10, Руководство пользователя

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Description
2.4 Electronic trip unit ETU
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
67
Metering functions of the ETUs of the 6-series
Measuring interval memory of the individual parameters for each interval with a time stamp
Measured value Clocking Monitoring period Metering module
MF required
Current: smallest and largest A I
min
, I
max
Fixed or
synchronizable
via test device
Duration:
5 to 120 min
Number of inter-
vals: 24
—
Phase-to-phase voltage: smallest
and largest
V U
min
, U
max
●
Active power: mean and largest kW P
mean
, P
max
●
Reactive power: mean and largest kvar Q
mean
, Q
max
●
Apparent power: mean and largest kVA S
mean
, S
max
●
Data log - can be analyzed with the freely available powerlog software
4)
Recording and storage of measured values with high-resolution sampling rate (buffer memory)
Measured values Metering module
MF required
Currents A L1, L2, L3, N, I
g
—
Voltages V U12, U23, U31 ●
Sampling rate Hz 1200-2400-4800-9600 —
Max. recording duration s 16 —
Recording stop delay s 0 to 10 —
Number of registers No. 2 independent —
Information on tripping and switch-off data
Parameter Metering module
MF required
Type of protection function tripped e.g. L, S, I, G, V
o
, V
u
—
Fault values per phase A / V /
Hz w /
VAR
e.g.
L1, L2, L3, N
U12, U23, U31 for V
o
, V
u
—
Time stamp Date, time, and consecutive number —
Maintenance displays
Parameter Metering module
MF required
Information on the last 30 trips Type of protection function, fault values, and time stamp —
Information on the last 200 events Type of event, time stamp —
Number of mechanical switching
operations
1)
No. Can be assigned to alarm —
Total number of trips No. — —
Operating hours counter h — —
Contact wear % Pre-alarm > 80 %
Alarm = 100 %
—
Date of maintenance performed Last —
Direction to perform necessary
maintenance
— —
Key data Type of circuit breaker, assigned name, serial number —