Siemens US2:9810RC - Measurements; Energy; Demand; Instantaneous Measurements

Measurements 9810 series - User manual
247 7EN05-0390-08
Measurements
Energy
Your meter provides bi-directional, 4-quadrant, revenue accurate energy metering:
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kWh, kVARh, kVAh delivered and received
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kWh, kVARh, kVAh net (delivered minus received)
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kWh, kVARh, kVAh total (delivered plus received)
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Volt-squared-hours and amp-squared-hours
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Integration of any instantaneous measurement
Energy parameters can be logged automatically on a programmed schedule.
All energy values represent the total for all three phases.
Demand
Your meter supports several demand calculation methods, including block, rolling block,
synchronized and predicted demand.
It can measure demand on any instantaneous value and record peak (maximum) demand with
time and date information.
•
kW, kVAR, kVA demand
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kW, kVAR, kVA peak demand
•
Amps, Volts demand
Instantaneous measurements
Your meter provides one second and half-cycle true RMS readings.
Instantaneous readings include:
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3-phase voltages (line-to-line, line-to-neutral): per phase and average
•
Line-to-earth voltages per phase and V4, neutral-to-earth voltage
•
3-phase currents: per phase and average
•
I4 and I5 currents, measured
•
Residual current, calculated (I calc res)
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Active (kW), reactive (kVAR) and apparent (kVA) power: per phase and total
•
Power factor per phase and total
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System frequency
•
Voltage and current unbalance
•
Phase reversal
Harmonics
Your meter provides harmonic distortion metering, recording, and real-time values for all voltage
and current inputs.