DOCA0265EN-03

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:

Level 1

Level 2

Level 3

Function description

Tree navigation menu

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

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

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

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:

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

I Max

I1 Max (A)

Maximum RMS current on phase 1

I2 Max (A)

Maximum RMS current on phase 2

I3 Max (A)

Maximum RMS current on phase 3

I Unb Max (%)

Maximum of maximum of 3 phase current unbalances

IN Max (A)(1)

Maximum RMS current on neutral

Ig Max (A)(2)

Maximum of RMS current on ground

I Avg

I Avg (A)(3)

Average of 3 phase RMS currents

I Unb

I (1,2,3) (%)

Real-time maximum of 3 phase current unbalances, with quality gauge

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 Active 6.0

(3) Applies to MicroLogic Active E

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 Max (V)

Maximum RMS phase-to-phase voltage 1-2

V23 Max (V)

Maximum RMS phase-to-phase voltage 2-3

V31 Max (V)

Maximum RMS phase-to-phase voltage 3-1

VLL Unb Max (%)

Maximum of maximum of 3 phase-to-phase voltage unbalances

VLN Unb Max (%)(1)

Maximum of maximum of 3 phase-to-neutral voltage unbalances

V1N Max (V)(1)

Maximum RMS phase-to-neutral voltage 1-N

V2N Max (V)(1)

Maximum RMS phase-to-neutral voltage 2-N

V3N Max (V)(1)

Maximum RMS phase-to-neutral voltage 3-N

V Min

V12 Min (V)

Minimum RMS phase-to-phase voltage 1-2

V23 Min (V)

Minimum RMS phase-to-phase voltage 2-3

V31 Min (V)

Minimum RMS phase-to-phase voltage 3-1

V1N Min (V)(1)

Minimum RMS phase-to-neutral voltage 1-N

V2N Min (V)(1)

Minimum RMS phase-to-neutral voltage 2-N

V3N (Min 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

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

VLN (%)(1)

Real-time 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)(1)

Active power on phase 1

P2 (kW)(1)

Active power on phase 2

P3 (kW)(1)

Active power on phase 3

Ptot (kW)

Total active power

P MAX

P1 Max (kW)

Maximum active power on phase 1

P2 Max (kW)

Maximum active power on phase 2

P3 Max (kW)

Maximum active power on phase 3

Ptot Max (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

Q1 Max (kVAR)(1)

Maximum reactive power on phase 1

Q2 Max (kVAR)(1)

Maximum reactive power on phase 2

Q3 Max (kVAR)(1)

Maximum reactive power on phase 3

Qtot Max (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

S1 Max (kVA)(1)

Maximum apparent power on phase 1

S2 Max (kVA)(1)

Maximum apparent power on phase 2

S3 Max (kVA)(1)

Maximum apparent power on phase 3

Stot Max (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)

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)

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 / Min

F Max (Hz)

Maximum frequency

F Min (Hz)

Minimum frequency

Phase Rotation

Reference

Reference phase rotation

Measure

Measured phase rotation

Rotation

Phase rotation status:

  • OK: Measured phase rotation matches reference phase rotation

  • Inverse: Measured phase rotation does not match reference phase rotation

Reset Min Max

Reset of minimum and maximum frequency, with date and time of last reset

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, the displayed parameter is:

    • Leading in the case of lead

    • Lagging in the case of lag

  • If IEC is selected (factory setting) the displayed parameter is:

    • Capacitive in the case of lead

    • Inductive in the case of lag

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