Measures Menu

Presentation

In this guide, electrical phases are described as phase 1, phase 2, phase 3 and cover both IEC standard and UL standard. The MicroLogic X control unit displays the phases as follows:

MicroLogic X control unit for IEC standard	MicroLogic X control unit for UL standard
Phase 1	Phase a
Phase 2	Phase b
Phase 3	Phase c

Description

The Measures menu contains the following submenus:

Level 1	Level 2	Level 3	Function description
Home	Measures	Current	Current real-time measurements
		Voltage	Voltage real-time measurements
		Power	Power real-time measurements
		Energy	Energy real-time measurements
		Frequency	Frequency real-time measurements
		I harmonics	Current harmonics real-time measurements
		V harmonics	Voltage harmonics real-time measurements
		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:

Real-time maximum of 3 phase current unbalances, Iunb
Average of 3 RMS phase-to-phase voltages Vavg VLL(V)
Real-time maximum of 3 phase-to-phase voltage unbalances Vunb VLL(%)
Frequency F(Hz)

For example, for the frequency screen, the following icons indicate the measurement compared to the expected range:


Measurement OK: the difference between the measured and expected frequencies is less than 1%	Measurement out of range: the difference between the measured and expected frequencies is +1–4% or -1– -6%	Measurement significantly out of range: the difference between the measured and expected frequencies is greater than +4% or less than -6%

Current

The Current menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Current	I	I1 (A)	RMS current on phase 1
		I2 (A)	RMS current on phase 2
		I3 (A)	RMS current on phase 3
		IN (A)⁽¹⁾	RMS current on neutral
		Ig (A)⁽²⁾	RMS current on ground
		IΔn (A)⁽³⁾	RMS current on earth leakage
	I MAX	I1 (A)	Maximum RMS current on phase 1
		I2 (A)	Maximum RMS current on phase 2
		I3 (A)	Maximum RMS current on phase 3
		IN (A)⁽¹⁾	Maximum RMS current on neutral
		Ig (A)⁽²⁾	Maximum of RMS current on ground
		IΔn (A)⁽³⁾	Maximum of RMS current on earth leakage
	I avg	I (1,2,3) (A)	Average of 3 phase RMS currents
	I unb	I (1,2,3) (%)	Real-time maximum of 3 phase current unbalances, with quality gauge
	I unb MAX	I (1,2,3) (%)	Maximum of maximum of 3 phase current unbalances
	Reset MAX		Reset of maximum RMS current, with date and time of last reset
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENCT wired and configured (2) Applies to MicroLogic 2.0 X, 3.0 X, 5.0 X, 6.0 X (3) Applies to MicroLogic 7.0 X

Voltage

The Voltage menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Voltage	V	V12 (V)	RMS phase-to-phase voltage 1-2
		V23 (V)	RMS phase-to-phase voltage 2-3
		V31 (V)	RMS phase-to-phase voltage 3-1
		V1N (V)⁽¹⁾	RMS phase-to-neutral voltage 1-N
		V2N (V)⁽¹⁾	RMS phase-to-neutral voltage 2-N
		V3N (V)⁽¹⁾	RMS phase-to-neutral voltage 3-N
	V MAX	V12 (V)	Maximum RMS phase-to-phase voltage 1-2
		V23 (V)	Maximum RMS phase-to-phase voltage 2-3
		V31 (V)	Maximum RMS phase-to-phase voltage 3-1
		V1N (V)⁽¹⁾	Maximum RMS phase-to-neutral voltage 1-N
		V2N (V)⁽¹⁾	Maximum RMS phase-to-neutral voltage 2-N
		V3N (V)⁽¹⁾	Maximum RMS phase-to-neutral voltage 3-N
	V MIN	V12 (V)	Minimum RMS phase-to-phase voltage 1-2
		V23 (V)	Minimum RMS phase-to-phase voltage 2-3
		V31 (V)	Minimum RMS phase-to-phase voltage 3-1
		V1N (V)⁽¹⁾	Minimum RMS phase-to-neutral voltage 1-N
		V2N (V)⁽¹⁾	Minimum RMS phase-to-neutral voltage 2-N
		V3N (V)⁽¹⁾	Minimum RMS phase-to-neutral voltage 3-N
	V avg	VLL (V)	Average of 3 RMS phase-to-phase voltages (V12+V23+V31)/3, with quality gauge
	V avg	VLN (V)⁽¹⁾	Average of 3 RMS phase-to-neutral voltages (V1N+V2N+V3N)/3
	V unb	VLL (%)	Real-time maximum of 3 phase-to-phase voltage unbalances, with quality gauge
	V unb	VLN (%)⁽¹⁾	Real-time maximum of 3 phase-to-neutral voltage unbalances
	V unb MAX	VLL (%)	Maximum of maximum of 3 phase-to-phase voltage unbalances
	V unb MAX	VLN (%)⁽¹⁾	Maximum of maximum of 3 phase-to-neutral voltage unbalances
	Reset MIN/MAX		Reset of minimum and maximum RMS voltage, with date and time of last reset
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured.

Power

The Power menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Power	P	P1 (kW)	Active power on phase 1
		P2 (kW)	Active power on phase 2
		P3 (kW)	Active power on phase 3
		Ptot (kW)	Total active power
	P MAX	Ptot (kW)	Maximum total active power
	Q	Q1 (kVAR)⁽¹⁾	Reactive power on phase 1
		Q2 (kVAR)⁽¹⁾	Reactive power on phase 2
		Q3 (kVAR)⁽¹⁾	Reactive power on phase 3
		Qtot (kVAR)	Total reactive power
	Q MAX	Qtot (kVAR)	Maximum total reactive power
	S	S1 (kVA)⁽¹⁾	Apparent power on phase 1
		S2 (kVA)⁽¹⁾	Apparent power on phase 2
		S3 (kVA)⁽¹⁾	Apparent power on phase 3
		Stot (kVA)	Total apparent power
	S MAX	Stot (kVA)	Maximum total apparent power
	Reset MAX		Reset of maximum power, with date and time of last reset
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured.

Energy

The Energy menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Energy	E total	Ep (kWh)	Total active energy
		Eq (kVArh)	Total reactive energy
		Es (kVAh)	Total apparent energy
	E delivered	Ep (kWh)	Total active energy delivered into the load (counted positively)
	E delivered	Eq (kVArh)	Total reactive energy delivered into the load (counted positively)
	E received	Ep (kWh)	Total active energy received out of the load (counted negatively)
	E received	Eq (kVArh)	Total reactive energy received out of the load (counted negatively)
	Reset counters		Reset of accumulated energy, with date and time of last reset

Frequency

The Frequency menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Frequency	F	F (Hz)	Frequency with quality gauge
	F MAX	F (Hz)	Maximum frequency
	F MIN	F (Hz)	Minimum frequency
	Reset MIN/MAX		Reset of minimum and maximum frequency, with date and time of last reset

I Harmonics

The I harmonics menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
I harmonics	I THD	I1 (%)	Total Harmonic Distortion (THD) of current on phase 1 compared to the fundamental
		I2 (%)	Total Harmonic Distortion (THD) of current on phase 2 compared to the fundamental
		I3 (%)	Total Harmonic Distortion (THD) of current on phase 3 compared to the fundamental
		IN (%)⁽¹⁾	Total Harmonic Distortion (THD) of current on neutral compared to the fundamental
	I THD IN MAX⁽¹⁾	IN (%)	Maximum of Total Harmonic Distortion (THD) of current on neutral compared to the fundamental
	I THD avg	I (1, 2, 3) (%)	Average of 3 phase current Total Harmonic Distortions (THD) compared to the fundamental
	I THD avg MAX	I (1, 2, 3) (%)	Maximum average of 3 phase current Total Harmonic Distortions (THD) compared to the fundamental, with date and time of occurrence
	Reset MAX		Reset of minimum and maximum THD, with date and time of last reset
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured.

V Harmonics

The V harmonics menu presents the following measurements:

Level 3	Level 4	Level 5	Parameter name
Voltage	V THD	V12 (%)	Total harmonic distortion (THD) of phase-to-phase voltage 1-2 compared to the fundamental
		V23 (%)	Total harmonic distortion (THD) of phase-to-phase voltage 2-3 compared to the fundamental
		V31 (%)	Total harmonic distortion (THD) of phase-to-phase voltage 3-1 compared to the fundamental
		V1N (%)⁽¹⁾	Total harmonic distortion (THD) phase-to-neutral voltage 1-N compared to the fundamental
		V2N (%)⁽¹⁾	Total harmonic distortion (THD) phase-to-neutral voltage 2-N compared to the fundamental
		V3N (%)⁽¹⁾	Total harmonic distortion (THD) phase-to-neutral voltage 3-N compared to the fundamental
	V THD avg	VLL (%)	Average of 3 phase-to-phase voltage Total Harmonic Distortions (THD) compared to the fundamental
	V THD avg	VLN (%)⁽¹⁾	Average of 3 phase-to-neutral voltage Total Harmonic Distortions (THD) compared to the fundamental
	V THD avg MAX	VLL (%)	Maximum value since last reset of average of 3 phase-to-phase voltage Total Harmonic Distortions (THD) compared to the fundamental
	V THD avg MAX	VLN (%)⁽¹⁾	Maximum value since last reset of average of 3 phase-to-neutral voltage Total Harmonic Distortions (THD) compared to the fundamental
	Reset MAX		Reset all maximum and minimum voltages
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured.

Power Factor Menu

The Power factor menu presents the following data:

Level 3	Level 4	Parameter name
Power Factor	PF	Total power factor
Cos φ	Total fundamental power factor
Network	The parameters displayed depend on the sign convention for power factor and cos phi selected. If IEEE is selected (factory setting), the displayed parameter is: Leading in the case of lead Lagging in the case of lag If IEC is selected, the displayed parameter is: Capacitive in the case of lead Inductive in the case of lag

Level 3

Level 4

Parameter name

Power Factor

Total power factor

Cos φ

Total fundamental power factor

Network

The parameters displayed depend on the sign convention for power factor and cos phi selected.

If IEEE is selected (factory setting), the displayed parameter is:
- Leading in the case of lead
- Lagging in the case of lag
If IEC is selected, the displayed parameter is:
- Capacitive in the case of lead
- Inductive in the case of lag