Fronius Smart Meter 240V-3 UL Manual De Instrucciones página 32

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 milli-
seconds 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 measuring 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 power.
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 meas-
ured accurately.
Maximum Surge: 4 kV according to EN 61000-4-5
Power Consumption: The following table shows maximum volt-amperes, the
power supply 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, depending on the model). Due to the design of
the power supply, the Fronius Smart Meter draws slightly more power at 50 Hz.
32
Meter Service Nominal Vac
Type Line-to-Neutral
240V-3 UL
480V-3 UL
600V-3 UL
Meter Real
Service Power
Type (60 Hz)
240V-3 1.2 W
UL
480V-3 1.2 W
UL
Nominal Vac
Line-to-Line
120 208-240
277 480
347 600
Powe
r
Real Facto Rate
Power r (50 d VA
(50 Hz) Hz) *)
1.5 W 0.70 4 VA
1.6 W 0.70 3 VA
Phases Wires
1 - 3 2 - 4
1 - 3 2 - 4
1 - 3 2 - 4
Power Sup- Power Sup-
ply Range ply Termin-
(Vac) als
166 - 276 L1 and L2
384 - 552 L1 and L2