Real-Time Measurements

Current Metering

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Phase I1, I2, I3, and neutral IN current measurements ⁽¹⁾ Maximum current values of phases I1 MAX, I2 MAX, I3 MAX, and the neutral IN MAX ⁽¹⁾ Maximum value (MAX) of all phase currents Minimum current values of phases I1 MIN, I2 MIN, I3 MIN and neutral IN MIN ⁽¹⁾ Minimum value (MINMIN) of all phase currents Average current Iavg measurements Maximum average current value Iavg MAX Minimum average current value Iavg MIN	A	0–20 In	+/-1%	0.2–1.2 In
MicroLogic 6 trip unit Ground-fault current measurement Maximum/minimum value of the ground-fault current	% Ig	0–600%	–	–
MicroLogic 7 trip unit Earth-leakage current measurement Maximum/minimum value of the earth-leakage current	A	0–100	–	–
(1) IN with 4-pole or 3-pole trip unit with ENCT option

Current Unbalance Metering

The accuracy range is for the current range: 0.2–1.2 In.

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Current phase unbalance measurements I1 unbal, I2 unbal, I3 unbal Maximum values of current phase unbalances l1 unbal MAX, I2 unbal MAX, I3 unbal MAX Maximum value (MAXMAX) of all phase unbalances	% Iavg	-100–100%	+/-2%	-100–100%

NOTE:

The unbalance values are signed (relative values).
The unbalance maximum values (MAX) are not signed (absolute values).

Voltage Metering

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Phase-to-phase V12, V23, V31 and phase-to-neutral V1N, V2N, V3N voltage measurements⁽¹⁾ Maximum values of phase-to-phase voltages V12 MAX L-L, V23 MAX L-L, V31 MAX L-L and phase-to-neutral voltages V1N MAX L-N, V2N MAX L-N, V3N MAX L-N ⁽¹⁾ Maximum value of the MAX phase-to-phase voltages (V12, V23, V31) Minimum values of phase-to-phase voltages V12 MIN L-L, V23 MIN L-L, V31 MIN L-L and phase-to-neutral voltages V1N MIN L-N, V2N MIN L-N, V3N MIN L-N ⁽¹⁾ Minimum value of the minimum phase-to-phase voltages (V12, V23, V31) Average voltage measurements Vavg L-L and Vavg L-N Maximum value of average voltages Vavg MAX L-L and Vavg MAX L-N Minimum value of average voltages Vavg MIN L-L and Vavg MIN L-N	V	0–850	+/-0.5%	70–850
(1) V1N, V2N, V3N with 4-pole or 3-pole trip unit with ENVT option

Voltage Unbalance Metering

The accuracy range is for the voltage range: 70–850 V.

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Phase-to-phase voltage V12unbal L-L, V23unbal L-L, V31unbal L-L and phase-to-neutral voltage V1Nunbal L-N, V2Nunbal L-N, V3Nunbal L-N unbalance measurements ⁽¹⁾ Maximum values of phase-to-phase voltage unbalances V12unbal MAX L-L, V23unbal MAX L-L, V31unbal MAX L-L and phase-to-neutral voltage unbalances V1Nunbal MAX L-L, V2Nunbal MAX L-L, V3Nunbal MAX L-L ⁽¹⁾ Maximum values (MAXMAX) of the MAX of the phase-to-phase and phase-to-neutral voltage unbalances ⁽¹⁾	% Vavg L-L % Vavg L-N	-100–100%	+/-1%	-100–100%
(1) V1N, V2N, V3N with 4-pole or 3-pole trip unit with ENVT option

Measurement

Unit

Measurement range

Accuracy

Accuracy range

Phase-to-phase voltage V12unbal L-L, V23unbal L-L, V31unbal L-L and phase-to-neutral voltage V1Nunbal L-N, V2Nunbal L-N, V3Nunbal L-N unbalance measurements ⁽¹⁾
Maximum values of phase-to-phase voltage unbalances V12unbal MAX L-L, V23unbal MAX L-L, V31unbal MAX L-L and phase-to-neutral voltage unbalances V1Nunbal MAX L-L, V2Nunbal MAX L-L, V3Nunbal MAX L-L ⁽¹⁾
Maximum values (MAXMAX) of the MAX of the phase-to-phase and phase-to-neutral voltage unbalances ⁽¹⁾

% Vavg L-L

% Vavg L-N

-100–100%

+/-1%

-100–100%

(1) V1N, V2N, V3N with 4-pole or 3-pole trip unit with ENVT option

NOTE:

The unbalance values are signed (relative values).
The unbalance maximum values (MAX) are not signed (absolute values).

Power Metering

The accuracy range is for:

current range: 0.1–1.2 In
voltage range: 70–850 V
cos ϕ range: from -1 to -0.5 and from 0.5 to 1

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Only with 4-pole or 3-pole trip unit with ENVT option Active power measurements for each phase P1, P2, P3 Maximum values of active powers for each phase P1 MAX, P2 MAX, P3 MAX Minimum values of active powers for each phase P1 MIN, P2 MIN, P3 MIN	kW	-1000 to 1000	+/-2%	-1000 to -1 1 to 1000
Total active power measurement Ptot Maximum value of total active power Ptot MAX Minimum value of total active power Ptot MIN	kW	-300 to 3000	+/-2%	-3000 to -3 3 to 3000
Only with 4-pole or 3-pole trip unit with ENVT option Reactive power measurements for each phase Q1, Q2, Q3 Maximum values of reactive powers for each phase Q1 MAX, Q2 MAX, Q3 MAX Minimum values of reactive powers for each phase Q1 MIN, Q2 MIN, Q3 MIN	kVAR	-1000 to 1000	+/-2%	-1000 to -1 1 to 1000
Total reactive power measurement Qtot Maximum value of total reactive power Qtot MAX Minimum value of total reactive power Qtot MIN	kVAR	-3000 to 3000	+/-2%	-3000 to -3 3 to 3000
Only with 4-pole or 3-pole trip unit with ENVT option Apparent power measurements for each phase S1, S2, S3 Maximum values of apparent powers for each phase S1 MAX, S2 MAX, S3 MAX Minimum values of apparent powers for each phase S1 MIN, S2 MIN, S3 MIN	kVA	-1000 to 1000	+/-2%	-1000 to -1 1 to 1000
Total apparent power measurement Stot Maximum value of total apparent power Stot MAX Minimum value of total apparent power Stot MIN	kVA	-3000 to 3000	+/-2%	-3000 to -3 3 to 3000
Only with 4-pole or 3-pole trip unit with ENVT option Fundamental reactive power measurements for each phase Qfund 1, Qfund 2, Qfund 3 Maximum values of fundamental reactive powers for each phase Qfund 1 MAX, Qfund 2 MAX, Qfund 3 MAX Minimum values of fundamental reactive powers for each phase Qfund 1 MIN, Qfund 2 MIN, Qfund 3 MIN	kVAR	-1000 to 1000	+/-2%	-1000 to -1 1 to 1000
Total fundamental reactive power measurement Qfundtot Maximum value of total fundamental reactive power Qfundtot MAX Minimum value of total fundamental reactive power Qfundtot MIN	kVAR	-3000 to 3000	+/-2%	-3000 to -3 3 to 3000
Only with 4-pole or 3-pole trip unit with ENVT option Distorting power measurements for each phase D1, D2, D3 Maximum values of distorting powers for each phase D1 MAX, D2 MAX, D3 MAX Minimum values of distorting powers for each phase D1 MIN, D2 MIN, D3 MIN	kVAR	-1000 to 1000	+/-2%	-1000 to -1 1 to 1000
Total distorting power measurement Dtot Maximum value of total distorting power Dtot MAX Minimum value of total distorting power Dtot MIN	kVAR	-3000 to 3000	+/-2%	-3000 to -3 3 to 3000

Operating Indicators

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Operating quadrant measurement	–	1, 2, 3, 4	–	–
Direction of phase rotation measurement	–	0, 1	–	–
Type of load measurement (leading/lagging)	–	0, 1	–	–

Energy Quality Indicators

The accuracy range is for:

current range: 0.1–1.2 In
voltage range: 70–850 V

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Measurement of: power factors PF1, PF2, PF3 and cos ϕ 1, cos ϕ 2, cos ϕ 3 for each phase Only with 4-pole or 3-pole trip unit with ENVT option total power factor PF and cos ϕ Maximum values: per phase of power factors PF1 MAX, PF2 MAX, PF3 MAX and cos ϕ 1 MAX, cos ϕ 2 MAX, cos ϕ 3 MAX of the power factor PF MAX and cos ϕ MAX Minimum values: of the power factors PF1 MIN, PF2 MIN, PF3 MIN and cos ϕ 1 MIN, cos ϕ 2 MIN, cos ϕ 3 MIN Only with 4-pole or 3-pole trip unit with ENVT option of the total power factor PF MIN and cos ϕ MIN	–	-1.00 to 1.00	+/-2%	-1.00 to -0.50 0.50 to 1.00
Measurement of the total harmonic current distortion THD for each phase THD(I1), THD(I2), THD(I3) Maximum values of the total harmonic current distortion THD for each phase THD(I1) MAX, THD(I2) MAX, THD(I3) MAX Minimum values of the total harmonic current distortion THD for each phase THD(I1) MIN, THD(I2) MIN, THD(I3) MIN	% Ifund	0– >1000%	+/-10%	10–500% I >20% In
Measurement of the total harmonic phase-to-phase voltage THD(V12) L-L, THD(V23) L-L, THD(V31) L-L and phase-to-neutral voltage THD(V1N) L-N, THD(V2N) L-N, THD(V3N) L-N distortion ⁽¹⁾ Maximum values of the total harmonic phase-to-phase voltage THD(V12) MAX L-L, THD(V23) MAX L-L, THD(V31) MAX L-L and phase-to-neutral voltage THD(V1N) MAX L-N, THD(V2N) MAX L-N, THD(V3N) MAX L-N distortion⁽¹⁾ Minimum values of the total harmonic phase-to-phase voltage THD(V12) MIN L-L, THD(V23) MIN L-L, THD(V31) MIN L-L and phase-to-neutral voltage THD(V1N) MIN L-N, THD(V2N) MIN L-N, THD(V3N) MIN L-N distortion⁽¹⁾	% Vfund L-L % Vfund L-N	0– >1000%	+/-5%	2–500% V >100 V
Frequency measurement Maximum frequency Minimum frequency	Hz	15–440	+/-0.2%	45–65
(1) THD(V1N), THD(V2N), THD(V3N) with 4-pole or 3-pole trip unit with ENVT option

Motor Thermal Image (MicroLogic 6 E-M)

The accuracy range is for the current range: 0.2–1.2 In.

Measurement	Unit	Measurement range	Accuracy	Accuracy range
Motor thermal image measurements Maximum value of the motor thermal image Minimum value of the motor thermal image	% Ir	0–100%	+/-1%	0–100%