ABB Relion 670 series, Техническое справочное руководство, Страница: 933 / 1232

Function Range or value Accuracy
Active power, P 0.1 x V
n
< V < 1.5 x V
n
0.2 x I
n
< I < 4.0 x I
n
± 1.0% of S
n
at S ≤ S
n
± 1.0% of S at S > S
n
Conditions:
0.8 x V
n
< V < 1.2 V
n
0.2 x I
n
< I < 1.2 I
n
Reactive power, Q 0.1 x V
n
< V < 1.5 x V
n
0.2 x I
n
< I < 4.0 x I
n
Apparent power, S 0.1 x V
n
< V < 1.5 x V
n
0.2 x I
n
< I < 4.0 x I
n
Power factor, cos (φ) 0.1 x V
n
< V < 1.5 x V
n
0.2 x I
n
< I < 4.0 x I
n
± 0.02
Table 565: CMMXU technical data
Function Range or value Accuracy
Current (0.1-4.0) × I
n
± 0.2% of I
n
at I ≤ 0.5 × I
n
±
0.2% of I at I > 0.5 × I
n
Phase angle (0.1–4.0) x I
n
± 0.5° at 0.2 × I
n
< I < 0.5 × I
n
±
0.2° at 0.5 × I
n
≤ I < 4.0 × I
n
Table 566: VMMXU technical data
Function Range or value Accuracy
Voltage (10 to 300) V
±
0.3% of V at V ≤ 50 V
± 0.2% of V at V > 50 V
Phase angle (10 to 300) V ± 0.3° at V ≤ 50 V
±
0.2° at V > 50 V
Table 567: VNMMXU technical data
Function Range or value Accuracy
Voltage (10 to 300) V ± 0.3% of V at V ≤ 50 V
±
0.2% of V at V > 50 V
Phase angle (10 to 300) V
±
0.3° at V ≤ 50 V
± 0.2° at V > 50 V
1MRK505222-UUS C
Section 15
Monitoring
927
Technical reference manual