Siemens SICAM P38 - Parameter Measurement Capabilities

Functions
3.1 Parameter Measurement
SICAM P38 P39, 3-phase Power Meter with Multi-Tariff function, User Manual
E50417-H8940-C564-4, Release Date 06.2018
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3.1 Parameter Measurement
This meter is provided with various measuring functions. Power grid parameters and index measurable are as
follows:
• Voltage of each phase and mean voltage
• Voltage of each line and mean voltage
• Current of each phase, average current and neutral current
• Total and separate active power, reactive power and apparent power of each phase
• Phase angle of voltage and current of each phase
• Total and separate power factor of each phase
• Power grid frequency and measuring range 45 Hz to 65 Hz
• Effective value and ratio of 2
nd
to 50
th
harmonic voltage and harmonic current of each phase
- Harmonic voltage ratio:
where, U
h
- No. h harmonic voltage (RMS); U
1
- fundamental voltage (RMS).
- Harmonic current ratio:
where, I
h
- No. h harmonic current (RMS); I
1
- fundamental current (RMS).
• Total harmonic voltage distortion and total harmonic current distortion of each phase
- Total harmonic voltage distortion:
- Total harmonic current distortion:
• Voltage wave crest factor (CF) of each phase, indicating peak of distorted waveform