ABB REG670 - Page 895

Function Range or value Accuracy
Active power, P 0.1 x U
r
< U < 1.5 x U
r
0.2 x I
r
< I < 4.0 x I
r
± 1.0% of S
r
at S ≤ S
r
± 1.0% of S at S > S
r
Conditions:
0.8 x U
r
< U < 1.2 U
r
0.2 x I
r
< I < 1.2 I
r
Reactive power, Q
0.1 x U
r
< U < 1.5 x U
r
0.2 x I
r
< I < 4.0 x I
r
Apparent power, S 0.1 x U
r
< U < 1.5 x U
r
0.2 x I
r
< I < 4.0 x I
r
Power factor, cos (φ) 0.1 x U
r
< U < 1.5 x U
r
0.2 x I
r
< I < 4.0 x I
r
± 0.02
Table 644: CMMXU technical data
Function Range or value Accuracy
Current at symmetrical load (0.1-4.0) × I
r
± 0.3% of I
r
at I ≤ 0.5 × I
r
± 0.3% of I at I > 0.5 × I
r
Phase angle at symmetrical load (0.1-4.0) × I
r
± 1.0° at 0.1 × I
r
< I ≤ 0.5 × I
r
± 0.5° at 0.5 × I
r
< I ≤ 4.0 × I
r
Table 645: VMMXU technical data
Function
Range or value Accuracy
Voltage (10 to 300) V ± 0.5% of U at U ≤ 50 V
± 0.2% of U at U > 50 V
Phase angle (10 to 300) V ± 0.5° at U ≤ 50 V
± 0.2° at U > 50 V
Table 646: CMSQI technical data
Function
Range or value Accuracy
Current positive sequence, I1
Three phase settings
(0.1–4.0) × I
r
± 0.3% of I
r
at I ≤ 0.5 × I
r
± 0.3% of I at I > 0.5 × I
r
Current zero sequence, 3I0
Three phase settings
(0.1–1.0) × I
r
± 0.3% of I
r
at I ≤ 0.5 × I
r
± 0.3% of I at I > 0.5 × I
r
Current negative sequence, I2
Three phase settings
(0.1–1.0) × I
r
± 0.3% of I
r
at I ≤ 0.5 × I
r
± 0.3% of I at I > 0.5 × I
r
Phase angle (0.1–4.0) × I
r
± 1.0° at 0.1 × I
r
< I ≤ 0.5 × I
r
± 0.5° at 0.5 × I
r
< I ≤ 4.0 × I
r
1MRK502052-UEN B Section 16
Monitoring
889
Technical manual