Measurement Characteristics
Presentation
The following tables indicate the measurements available and specify the following information for each measurement:
-
Unit
-
Measurement range
-
Accuracy
-
Accuracy range
Current
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
A |
0(1)–20 In |
+/-0.5% |
MTZ1: 40–(1,600 x 1.2) MTZ2: 40–(4,000 x 1.2) MTZ3: 80–(6,300 x 1.2) |
|
A |
0(1)–20 In |
+/-1% |
MTZ1: 40–(1,600 x 1.2) MTZ2: 40–(4,000 x 1.2) MTZ3: 80–(6,300 x 1.2) |
|
A |
0(1)–20 In |
+/-0.5% |
MTZ1: 40–(1,600 x 1.2) MTZ2: 40–(4,000 x 1.2) MTZ3: 80–(6,300 x 1.2) |
|
A |
0–20 In |
5% |
MTZ1: 40–(1,600 x 1.2) MTZ2: 40–(4,000 x 1.2) MTZ3: 80–(6,300 x 1.2) |
|
A |
0–30 A |
10% |
0.1–30 A |
(1) Below the lowest measurable current (4 A for MTZ1, 10 A for MTZ2/3), the value is 0 A. (2) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENCT wired and configured. (3) Applies to MicroLogic 7.0 X control unit. |
Current Unbalance
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
% |
0–100% |
+/-5 |
0–100% |
Voltage
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
V |
0(1)–1,150 V |
+/-0.5% |
208–690 x 1.2 V |
|
V |
0(1)–660 V |
+/-0.5% |
120–400 x 1.2 V |
|
V |
0(1)–1,150 V |
+/-0.5% |
208–690 x 1.2 V |
|
V |
0(1)–600 V |
+/-0.5% |
120–400 x 1.2 V |
(1) Below the lowest measurable voltage (10 V) the value is 0 V. (2) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Voltage Unbalance
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
% |
0–100% |
+/-0.5 |
0–10% |
|
% |
0–100% |
+/-0.5 |
0–10% |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Power
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
kW |
-16,000– +16,000 kW |
+/-1% |
See NOTE below |
|
kW |
-16,000– +16,000 kW |
+/-1% |
See NOTE below |
|
kVAR |
-16,000– +16,000 kW |
+/-2% |
See NOTE below |
|
kVAR |
-16,000– +16,000 kW |
+/-1% |
See NOTE below |
|
kVA |
-16,000– +16,000 kW |
+/-1% |
See NOTE below |
|
kVA |
-16,000– +16,000 kW |
+/-1% |
See NOTE below |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Operating Indicators
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
Operating quadrant |
– |
1,2, 3, 4 |
– |
– |
Phase rotation |
– |
123 or 132 |
– |
– |
Type of load |
– |
leading or lagging |
– |
– |
Power Factor PF and cos φ
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
– |
-1.00–+1.00 |
+/-0.02 |
0.5 ind - 0.8 cap |
|
– |
-1.00–+1.00 |
+/-0.02 |
0.5 ind - 0.8 cap |
|
– |
-1.00–+1.00 |
+/-0.02 |
0.5 ind - 0.8 cap |
|
– |
-1.00–+1.00 |
+/-0.02 |
0.5 ind - 0.8 cap |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Total Harmonic Distortion Compared to the Fundamental (THD) of Currents and Voltages
Total harmonic distortions are calculated with harmonics up to rank 15.
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
% |
0–1,000% |
+/-1.5 |
0–100% when I > 80 A |
|
% |
0–1,000% |
+/-1.5 x THD/100 |
100–200% |
|
% |
0–1,000% |
+/-0.6 |
0–20% when V > 208 V |
|
% |
0–1,000% |
+/-0.6 |
0–20% when V > 120 V |
|
% |
0–1,000% |
+/-1.5 |
0–100% when I > 80 A |
|
% |
0–1,000% |
+/-0.6 |
0–20% when V > 208 V |
|
% |
0–1,000% |
+/-0.6 |
0–20% when V > 120 V |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Total Harmonic Distortion Compared to the RMS Value (THD-R) of Currents and Voltages
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
% |
0–100% |
+/-1.5 x THD/100 |
0–100% |
|
% |
0–100% |
+/-0.6 |
0–20% when V > 208 V |
|
% |
0–100% |
+/-0.6 |
0–20% when V > 120 V |
|
% |
0–100% |
+/-1.5 x THD/100 |
0–100% |
|
% |
0–100% |
+/-0.6 |
0–20% when V > 208 V |
|
% |
0–100% |
+/-0.6 |
0–20% when V > 120 V |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENVT wired and configured. |
Frequency
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
Hz |
40–70 Hz |
+/-0.2% |
45–65 Hz |
Current Demand and Peak Values
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
A |
0–20 In |
+/-1% |
0.2–1.2 In |
|
A |
0–20 In |
+/-1% |
0.2–1.2 In |
(1) Applies to 4-pole circuit breakers or 3-pole circuit breakers with ENCT wired and configured. |
Power Demand and Peak Values
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
|
kW |
-16,000– +16,000 kW |
+/-1% |
-10,000 to -2 kW, 2 to 10,000 kW |
|
kVAR |
-16,000– +16,000 kVAR |
+/-1% |
-10,000 to -2 kVAR, 2 to 10,000 kVAR |
|
kVA |
0–16,000 kVA |
+/-1% |
2–10,000 kVA |
-
current range: 0.1–1.2 In
-
voltage range: 165–830 Vac
-
cos φ range: -1 to -0.5 and 0.5 to 1
Resettable Energy Meters
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
Total active energy value Ep |
kWh |
-10,000,000 to +10,000,000 kWh |
+/-1% |
See NOTE below |
Total active energy values Epdelivered and Epreceived |
kWh |
-10,000,000 to +10,000,000 kWh |
+/-1% |
See NOTE below |
Total reactive energy value Eq |
kVARh |
-10,000,000 to +10,000,000 kVARh |
+/-2% |
See NOTE below |
Total reactive energy values Eqdelivered and Eqreceived |
kVARh |
-10,000,000 to +10,000,000 kVARh |
+/-2% |
See NOTE below |
Apparent energy Es |
kVAh |
-10,000,000 to +10,000,000 kVAh |
+/-1% |
See NOTE below |
Non-Resettable Energy Meters
Measurement |
Unit |
Range |
Accuracy |
Accuracy range |
---|---|---|---|---|
Total active energy value Ep |
kWh |
-10,000,000 to +10,000,000 kWh |
+/-1% |
See NOTE below |
Total active energy values Epdelivered and Epreceived |
kWh |
-10,000,000 to +10,000,000 kWh |
+/-1% |
See NOTE below |
Total reactive energy value Eq |
kVARh |
-10,000,000 to +10,000,000 kVARh |
+/-2% |
See NOTE below |
Total reactive energy values Eqdelivered and Eqreceived |
kVARh |
-10,000,000 to +10,000,000 kVARh |
+/-2% |
See NOTE below |
Apparent energy Es |
kVAh |
-10,000,000 to +10,000,000 kVAh |
+/-1% |
See NOTE below |