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@ -67,7 +67,7 @@ Configuration variables:
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- **phase_b** (*Optional*): The configuration options for the 2nd phase. Same options as 1st phase.
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- **phase_c** (*Optional*): The configuration options for the 3rd phase. Same options as 1st phase.
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- **frequency** (*Optional*): Use the frequenycy value calculated by the meter. All options from
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- **frequency** (*Optional*): Use the frequency value calculated by the meter. All options from
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:ref:`Sensor <config-sensor>`.
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- **peak_current_signed** (*Optional*, boolean): Control the peak current output as signed or absolute. Defaults to ``false``.
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- **chip_temperature** (*Optional*): Use the chip temperature value. All options from
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@ -155,7 +155,7 @@ Active Energy
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The ATM90E32 chip has a high-precision built-in ability to count the amount of consumed energy on a per-phase basis.
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For each phase both the Forward and Reverse active energy is counted in watt-hours.
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Forward Active Energy is used to count consumed energy, whereas Reverse Active Energy is used to count exported energy
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(e.g. with solar pv installations).
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(e.g. with solar PV installations).
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The counters are reset every time a given active energy value is read from the ATM90E32 chip.
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Current implementation targets users who retrieve the energy values with a regular interval and store them in
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@ -179,24 +179,24 @@ a time-series-database, e.g. InfluxDB.
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id: ct1RAWattHours
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state_topic: ${disp_name}/ct1/reverse_active_energy
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If the power, power_factor, reactive_power, forward_active_energy, or reverse_active_energy configuraion variables
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If the power, power_factor, reactive_power, forward_active_energy, or reverse_active_energy configuration variables
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are used, care must be taken to ensure that the line ATM90E32's voltage is from is the same phase as the current
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transformer is installed on. This is significant in split-phase or multi phase installations. On a house with 240
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split-phase wiring (very common in the US), one simple test is to reverse the orentation of the current transformer
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split-phase wiring (very common in the US), one simple test is to reverse the orientation of the current transformer
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on a line. If the power factor doesn't change sign, it is likely that the voltage fed to the ATM90E32 is from the other
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phase.
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The CircuitSetup Expandable 6 channel board can easilly handle this situation by cutting the jumpers JP12/13 to
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allow a seperate VA2 to be input on the J3 pads. Make sure that current taps connected to CT 1-3 are on the phase
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The CircuitSetup Expandable 6 channel board can easily handle this situation by cutting the jumpers JP12/13 to
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allow a separate VA2 to be input on the J3 pads. Make sure that current taps connected to CT 1-3 are on the phase
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from which VA is fed (the barrel jack) and the taps connected to CT3-6 are on the phase from which VA2 is fed. See
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the CicuitSetup repo for more details on this.
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If a mulit board stack is being used, remember to cut JP12/13 on all boards and to feed VA2 to each board. VA is
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If a multi board stack is being used, remember to cut JP12/13 on all boards and to feed VA2 to each board. VA is
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fed to all boards through the stacking headers. Another detail is that each voltage transformer needs to have the
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same polarity; getting this backwards will be just like having it on the wrong phase.
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Note that the current measurement is the RMS value so is always positive. They only way to determine directon is to
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look at the power factor. If there are only largly resistive loads and no power sources, (PF almost 1), it is simpler
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Note that the current measurement is the RMS value so is always positive. They only way to determine direction is to
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look at the power factor. If there are only largely resistive loads and no power sources, (PF almost 1), it is simpler
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to just create a template sensor that computes power from Irms*Vrms and ignore all these details. On the other
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hand, one might be surprised how reactive some loads are and the CirciuitSetup designs are able to
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handle these situations well.
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@ -468,7 +468,7 @@ Harmonic Power
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Harmonic power in AC systems refers to deviations from the ideal sinusoidal waveform, caused by multiples of the
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fundamental frequency. It results from non-linear loads and can lead to issues like voltage distortion, equipment
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overheating, and misoperation of protective devices. The ATM90E32 can output advanced harmonic power measurements
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overheating, and miss operation of protective devices. The ATM90E32 can output advanced harmonic power measurements
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providing important analysis data for monitoring power anomalies on the bus.
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**Harmonic Power Example:**
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@ -503,8 +503,8 @@ Peak Current
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Peak current in AC systems refers to the maximum value of the alternating current waveform. It signifies the highest
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magnitude reached during each cycle of the sinusoidal waveform. Peak current is relevant for sizing components and
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assessing the capacity of electrical equipment in the system. This advanced measurement is avaiable from the ATM90E32.
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Peak current can be displayed in signed or unsigned format using a bolean parameter which spans all phases.
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assessing the capacity of electrical equipment in the system. This advanced measurement is available from the ATM90E32.
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Peak current can be displayed in signed or unsigned format using a boolean parameter which spans all phases.
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The default is false which is unsigned.
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**Peak Current Example:**
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