Technical Data; Accuracy; Measurement; Models And Electrical - Fronius Smart Meter 240V-3 UL Manual De Instrucciones

Technical Data

Accuracy

Normal Operation
Line voltage: -20% to +15% of nominal
Power factor: 1.0
Frequency: 48 - 62 Hz
Ambient Temperature: 23° C ± 5° C
CT Current: 5% - 100% of rated current
Accuracy: ± 0.5% of reading

Measurement

Update Rate: 0.1 second. Internally, all measurements are performed at this rate.
Startup Time: ~1.0 second. The Fronius Smart Meter starts communicating this long after
AC voltage is applied. Energy measurement starts 50-100 milliseconds after AC is applied.
Default CT Phase Angle Correction: 0.0 degrees.
Models and Elec-
trical
The Fronius Smart Meter has an optional neutral connection that may be used for measur-
ing wye circuits. In the absence of neutral, voltages are measured with respect to ground.
The Fronius Smart Meter uses the phase L1 (øA) and phase L2 (øB) connections for pow-
er.
Over-Voltage Limit: 125% of nominal Vac. Extended over-voltage operation can damage
the Fronius Smart Meter and void the warranty.
Over-Current Limit: 120% of rated current. Exceeding 120% of rated current will not harm
the Fronius Smart Meter but the current and power will not be measured accurately.
Maximum Surge: 4 kV according to EN 61000-4-5
Power Consumption: The following table shows maximum volt-amperes, the power sup-
ply ranges, typical power consumption, and typical power factors with all three phases
powered at nominal line voltages. The power supply consumes most of the total power,
while the measurement circuitry draws 1-10% of the total (6-96 milliwatts per phase, de-
pending on the model). Due to the design of the power supply, the Fronius Smart Meter
draws slightly more power at 50 Hz.
Meter Ser-
240V-3 UL
480V-3 UL
600V-3 UL
*) The Rated VA is the maximum at 115% of nominal Vac at 50 Hz. This is the same as the
value that appears on the front label of the Fronius Smart Meter.
Maximum Power Supply Voltage Range: -20% to +15% of nominal (see table above).
For the 3D-240 service, this is -20% of 208 Vac (166 Vac) to +15% of 240 Vac (276 Vac).
Operating Frequencies: 50 / 60 Hz
Measurement Category: CAT III
20
Meter Service
Type Line-to-Neutral
240V-3 UL
480V-3 UL
600V-3 UL
Real Pow-
vice Type er (60 Hz)
1.2 W
1.2 W
1.0 W
Nominal Vac Nominal Vac
Line-to-Line
120
277
347
Real Pow- Power Rated
er (50 Hz) Factor VA *)
(50 Hz)
1.5 W 0.70 4 VA
1.6 W 0.70 3 VA
1.3 W 0.76 3 VA
Phases
208-240 1 - 3
480 1 - 3
600 1 - 3
Power Supply
Range (Vac)
166 - 276
384 - 552
278 - 399
Wires
2 - 4
2 - 4
2 - 4
Power Sup-
ply Terminals
L1 and L2
L1 and L2
N and L1