Siemens SENTRON 3WL10 - Page 79

Metering functions of the ETUs of the 6-series
Frequency Hz f 0.2% ●
Active power kW P1, P2, P3, P
tot
2% ●
Reactive power kvar Q1, Q2, Q3, Q
tot
2% ●
Apparent power kVA S1, S2, S3, S
tot
2% ●
Power factor (p.f.)  L1, L2, L3, N 2% ●
Peak factor  total — ●

Counter
(recorded since installation or last reset)
 Measured val‐
ues
Precision Metering mod‐
ule MF required
Active energy kWh E
p
total
E
p
drawn
E
p
consumed
2% ●
Reactive energy kvarh E
q
total
E
q
drawn
E
q
consumed
2% ●
Apparent energy kVAh E
s
total 2% ●

Measuring interval memory of the individual parameters for each interval with a time stamp
 Measured value Clocking Monitoring peri‐
od
Metering mod‐
ule MF required
Current: smallest and largest A I
min
, I
max
Fixed or synchro‐
nizable 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 powerservice software
4)
Recording and storage of measured values with high-resolution sampling rate (bu󹪜er memory)
 Measured values Metering mod‐
ule 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-o󹪜 data
 Parameter Metering mod‐
ule MF required
Type of protection function tripped  e.g. L, S, I, G, V
o
, V
u
(can also be queried via info button
when ETU is unpowered)
—
Description
2.9Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
78 Equipment Manual, 10/2023, L1V30499596002-03