MBS 18257 Transformer

MWg-3.1 MWg-3.1 Measuring transducer for effective power
Measuring effective power (also possibletransducer for frequencyfor inverters)
(also possible for frequency inverters)
Characteristics/uses •Characteristics/uses Surface-mounted housing for top-hat rail TH 35 according to DIN EN 60 715
Surface-mounted housing for
TH 35 according to DIN Measuring input: Sinusoidal astop-hat well asrail
non-sinusoidal voltages andEN 60 715 Measuring Sinusoidal asof well non-sinusoidal
voltages and currents on input:
three-phase mains anyascurve shape currents on three-phase mains live-zero
of any curve Measurement output: Unipolar, and shape bipolar output variables, as
well as output with zeroUnipolar, elevationlive-zero and bipolar output variables, as
Measurement output:
well as output with zero elevation Application Measuring transducer for recording the active power of a 3-wire three-phase mains with an
Application even phasetransducer load. The output signal is a load-independent
DC current or imprinted DC Measuring for recording the active power of a 3-wire
three-phase mains with an voltage signalload.
that The is directly to the active power the primary mains. DC even phase
outputproportional signal is a load-independent DCofcurrent or imprinted
voltage signal that is directly proportional to the active power of the primary mains.
Functional principle Measuring Functionaltransducers principle for active and reactive power operate with an integrated analogue multiplier.
The two converters in the galvanically separate the high-current Measuring
transducers forcurrent active and and voltage reactivepath power operate with
an integrated analoguecircuits multiplier.
from the electronics adjust theand input current andgalvanically voltage to the
multiplier, which multiplies the The two converters and in the current voltage
path separate the high-current circuits measured values in an analogue way
andcurrent integrates with low-pass filter.
from the electronics and adjust the input and them voltage to athe multiplier,
which multiplies the measured values in an analogue way and integrates them with a low-pass filter.
•• • • •
Measuring input Measuring input Nominal frequency
Nominal frequency
Nominal input current IEN Nominal inputvoltage currentUIEN Input nominal
EN
Input nominal voltage UEN Intrinsic consumption Intrinsic consumption Overload capacity
Overload capacity Operating voltage Operating voltage Measurement output
Measurement Nominal currentoutput IAN Nominal current Load range
RA IAN Load range RA Current limitation Current limitation Nominal voltage UAN
Nominal Load
RA voltage UAN Load RA Load error Load error Residual ripple Residual ripple
Setting time Setting time Open-circuit voltage
Open-circuit voltage Accuracy Accuracy Basic accuracy Basic accuracy Temperature
drift Temperature drift
Technical parameters Technical Nominal parameters conditions 50 or 60 Hz,
50 or 60 Hz, Harmonic content ≤ 0.2
Nominalvoltage conditions Auxiliary Auxiliary voltage Input voltage
0 … 50-519 approx.
1 mAVper voltage path approx.
mAcurrent per voltage path < 0.1 VA1per path at 1A
Frequency Waveform Waveform Ambient temperature
50 / 60 Hz Sine, distortion factor ≤ 0.1% Sine, distortion factor ≤ 0.1%
23°C ±1K
U,EN 1.2max.
IEN, 1permanent 21.2 ∙ U∙EN 20orIEN sec.
2 ∙ U EN, 20 IEN max. 1 sec.
max. 519 V
Auxiliary AC voltageenergy
AC voltage
230 V~ (-15% +10%); < 7 VA 230 V~ V~ (-15% (-15% +10%);
+10%); << 47 VA VA 115 115 V~ (-15% +10%);
< 4 24 V = (20 … 72V); < 3 VAVA
HarmonicAcontent ≤ 0.2 0…0.5-5 A V 00…0.5-5 … 50-519
0.1 VA
VA per per current currentpath path at at 51 AA << 0.4 < 0.4 VA per current
path at 5 A 1.2 ∙ UEN or 1.2 IEN, permanent
max. 519 V
0 ... 20 mA or 4 ... 20 mA ... 10 20 VmA or 4 ... 20 mA 00 ...
/ IAN
0 ...
10 V /37 IANmA to approx.
to approx.
37 mA10 V 0 ... 10 V or 2 ...
10 V or 2 ... 10 V ≥0 4...kΩ ≥ 4 kΩ ≤ 0.1% at 50% load change 0.1% at 50% load change
≤≤ 1%eff
≤ 1%eff500ms approx.
≤approx.
15 V 500ms ≤ 15 V
± 0.5% of the final value 0.5%%/K of the final value ≤± 0.02 ≤ 0.02 %/K
Input voltage Power factor Power factor Frequency
UHN ±2%, 50 ... 60 Hz
HN ±2%, 50 ... 60 Hz UUEN ± 0.5%
UENϕ±=0.5% sin 1.0 ... 0.8 sin ϕ = 1.0 ... 0.8 50 / 60 Hz
Ambient temperature ±1K Warm-up time ≥23°C 5 min Warm-up time ≥ 5 min Auxiliary power supply
DC voltage
DC voltage Wide range
24 … V =100 (20V= …or 72V);
<3
VA < 3 VA 20 15 … 70V~;
Wide range 20 … 100 V= or 15 … 70V~;
AC / DC 90 … 357 V= or 65 … 253V~;<<34VA … 7 VA
AC / DC technical data 90 … 357 V= or 65 … 253V~; < 4 … 7 VA General
General technical Test voltage All data circuits against housing: 3510 Veff 5 sec.
Test voltage All circuits circuit againstand housing:
3510 Veff 5 sec.
Measuring auxiliary voltage against Measuring circuit and auxiliary voltage
against 3510 Veff 5 sec.
Output:
Output: 3510 Veffeach 5 sec.
currents against other and against
Working voltage Working voltage Protection class
currents 3510 against other and against Voltage:
Veffeach 5 sec.
Voltage:
3510 V eff 5 sec.
300 V (nominal mains voltage phase-zero)
Protectionclass class Protection Protection class Measurement category
300 (nominalIPmains voltage phase-zero) IP 40Vhousing, 20 terminals IP 40
housing, IP 20 terminals II
II III CAT Measurement category Degree of contamination 2CAT III Degree of contamination 2
Weight approx. 270 g Weight approx. 270 g
Terminal assignment
Block circuit diagram (example)
60 60 6060
Schematic diagram (Example)
Connections Connection diagram
Terminal assignment