Measures Menu
Presentation
In this guide, electrical phases are described as phase 1, phase 2, phase 3 and cover IEC standard.
Description
The Measures menu contains the following submenus:
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Level 1 |
Level 2 |
Level 3 |
Function description |
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Tree navigation menu |
Measures |
Current |
Current real-time measurements |
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Voltage |
Voltage real-time measurements |
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Power |
Power real-time measurements |
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Energy |
Energy real-time measurements |
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Frequency |
Frequency real-time measurements |
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Power factor |
Power factor real-time measurements |
Measures Screens with Quality Gauge
A quality gauge is displayed on the following screens to give a graphical representation of the measurement compared to the expected range:
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Real-time maximum of 3 phase current unbalances, Iunb
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Average of 3 RMS phase-to-phase voltages Vavg VLL(V)
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Real-time maximum of 3 phase-to-phase voltage unbalances Vunb VLL(%)
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Frequency F
For example, for the frequency screen, the following screens indicate the measurement compared to the expected range:
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Green color indicates measurement is OK: the difference between the measured and expected frequency is less than 1% |
Orange color indicates measurement is out of range: the difference between the measured and expected frequency is between +1% and 4% or between -1% and -6% |
Red color indicates measurement is significantly out of range: the difference between the measured and expected frequency is greater than +4% or less than -6% |
Current
The Current menu presents the following measurements:
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Level 3 |
Level 4 |
Level 5 |
Parameter name |
|---|---|---|---|
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Current |
I |
I1 (A) |
RMS current on phase 1 |
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I2 (A) |
RMS current on phase 2 |
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I3 (A) |
RMS current on phase 3 |
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IN (A)(1) |
RMS current on neutral |
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Ig (A)(2) |
RMS current on ground |
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I Max |
I1 Max (A) |
Maximum RMS current on phase 1 |
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I2 Max (A) |
Maximum RMS current on phase 2 |
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I3 Max (A) |
Maximum RMS current on phase 3 |
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I Unb Max (%) |
Maximum of maximum of 3 phase current unbalances |
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IN Max (A)(1) |
Maximum RMS current on neutral |
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Ig Max (A)(2) |
Maximum of RMS current on ground |
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I Avg |
I Avg (A)(3) |
Average of 3 phase RMS currents |
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I Unb |
I (1,2,3) (%) |
Real-time maximum of 3 phase current unbalances, with quality gauge |
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Reset Max |
Reset of maximum RMS current, with date and time of last reset |
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(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENCT wired and configured (2) Applies to MicroLogic Active 6.0 (3) Applies to MicroLogic Active E |
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Voltage
The Voltage menu presents the following measurements:
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Level 3 |
Level 4 |
Level 5 |
Parameter name |
|---|---|---|---|
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Voltage |
V |
V12 (V) |
RMS phase-to-phase voltage 1-2 |
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V23 (V) |
RMS phase-to-phase voltage 2-3 |
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V31 (V) |
RMS phase-to-phase voltage 3-1 |
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V1N (V)(1) |
RMS phase-to-neutral voltage 1-N |
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V2N (V)(1) |
RMS phase-to-neutral voltage 2-N |
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V3N (V)(1) |
RMS phase-to-neutral voltage 3-N |
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V Max |
V12 Max (V) |
Maximum RMS phase-to-phase voltage 1-2 |
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V23 Max (V) |
Maximum RMS phase-to-phase voltage 2-3 |
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V31 Max (V) |
Maximum RMS phase-to-phase voltage 3-1 |
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VLL Unb Max (%) |
Maximum of maximum of 3 phase-to-phase voltage unbalances |
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VLN Unb Max (%)(1) |
Maximum of maximum of 3 phase-to-neutral voltage unbalances |
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V1N Max (V)(1) |
Maximum RMS phase-to-neutral voltage 1-N |
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V2N Max (V)(1) |
Maximum RMS phase-to-neutral voltage 2-N |
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V3N Max (V)(1) |
Maximum RMS phase-to-neutral voltage 3-N |
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V Min |
V12 Min (V) |
Minimum RMS phase-to-phase voltage 1-2 |
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V23 Min (V) |
Minimum RMS phase-to-phase voltage 2-3 |
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V31 Min (V) |
Minimum RMS phase-to-phase voltage 3-1 |
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V1N Min (V)(1) |
Minimum RMS phase-to-neutral voltage 1-N |
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V2N Min (V)(1) |
Minimum RMS phase-to-neutral voltage 2-N |
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V3N (Min V)(1) |
Minimum RMS phase-to-neutral voltage 3-N |
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V Avg |
VLL (V) |
Average of 3 RMS phase-to-phase voltages (V12+V23+V31)/3, with quality gauge |
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VLN (V)(1) |
Average of 3 RMS phase-to-neutral voltages (V1N+V2N+V3N)/3 |
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V Unb |
VLL (%) |
Real-time maximum of 3 phase-to-phase voltage unbalances, with quality gauge |
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VLN (%)(1) |
Real-time maximum of 3 phase-to-neutral voltage unbalances |
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Reset Min Max |
Reset of minimum and maximum RMS voltage, with date and time of last reset |
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(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
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Power
The Power menu presents the following measurements:
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Level 3 |
Level 4 |
Level 5 |
Parameter name |
|---|---|---|---|
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Power |
P |
P1 (kW)(1) |
Active power on phase 1 |
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P2 (kW)(1) |
Active power on phase 2 |
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P3 (kW)(1) |
Active power on phase 3 |
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Ptot (kW) |
Total active power |
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P MAX |
P1 Max (kW) |
Maximum active power on phase 1 |
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P2 Max (kW) |
Maximum active power on phase 2 |
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P3 Max (kW) |
Maximum active power on phase 3 |
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Ptot Max (kW) |
Maximum total active power |
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Q |
Q1 (kvar)(1) |
Reactive power on phase 1 |
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Q2 (kvar)(1) |
Reactive power on phase 2 |
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Q3 (kvar)(1) |
Reactive power on phase 3 |
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Qtot (kvar) |
Total reactive power |
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Q MAX |
Q1 Max (kvar)(1) |
Maximum reactive power on phase 1 |
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Q2 Max (kvar)(1) |
Maximum reactive power on phase 2 |
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Q3 Max (kvar)(1) |
Maximum reactive power on phase 3 |
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Qtot Max (kvar) |
Maximum total reactive power |
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S |
S1 (kVA)(1) |
Apparent power on phase 1 |
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S2 (kVA)(1) |
Apparent power on phase 2 |
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S3 (kVA)(1) |
Apparent power on phase 3 |
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Stot (kVA) |
Total apparent power |
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S Max |
S1 Max (kVA)(1) |
Maximum apparent power on phase 1 |
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S2 Max (kVA)(1) |
Maximum apparent power on phase 2 |
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S3 Max (kVA)(1) |
Maximum apparent power on phase 3 |
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Stot Max (kVA) |
Maximum total apparent power |
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Reset Max |
Reset of maximum power, with date and time of last reset |
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(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
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Energy
The Energy menu presents the following measurements:
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Level 3 |
Level 4 |
Level 5 |
Parameter name |
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Energy |
E total |
Ep (kWh) |
Total active energy |
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Eq (kVArh) |
Total reactive energy |
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Es (kVAh) |
Total apparent energy |
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E delivered |
Ep (kWh) |
Total active energy delivered into the load (counted positively) |
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| Eq (kVArh) |
Total reactive energy delivered into the load (counted positively) |
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E received |
Ep (kWh) |
Total active energy received out of the load (counted negatively) |
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Eq (kVArh) |
Total reactive energy received out of the load (counted negatively) |
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Reset counters |
Reset of accumulated energy, with date and time of last reset |
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Frequency
The Frequency menu presents the following measurements:
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Level 3 |
Level 4 |
Level 5 |
Parameter name |
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Frequency |
F |
F (Hz) |
Frequency with quality gauge |
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F Max / Min |
F Max (Hz) |
Maximum frequency |
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F Min (Hz) |
Minimum frequency |
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Phase Rotation |
Reference |
Reference phase rotation |
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Measure |
Measured phase rotation |
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Rotation |
Phase rotation status:
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Reset Min Max |
Reset of minimum and maximum frequency, with date and time of last reset |
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Power Factor Menu
The Power factor menu presents the following data:
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Level 3 |
Level 4 |
Parameter name |
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Power Factor |
PF |
Total power factor |
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Cos φ |
Total fundamental power factor |
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Network |
The parameters displayed depend on the sign convention for power factor and cos phi selected.
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