Monitoring
Table 62. Measurements CVMMXN
Function
Range or value
Accuracy
Frequency
(0.95-1.05) × f
r
±
2.0 mHz
Voltage
(0.1-1.5) ×U
r
±
0.5% of U
r
at U
£
U
r
±
0.5% of U at U > U
r
Connected current
(0.2-4.0) × I
r
±
0.5% of I
r
at I
£
I
r
±
0.5% of I at I > I
r
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 63. Phase current measurement CMMXU
Function
Range or value
Accuracy
Current
(0.1-4.0) × I
r
±
0.2% of I
r
at I ≤ 0.5 × I
r
±
0.2% of I at I > 0.5 × I
r
Phase angle
(0.1–4.0) x I
r
±
0.5° at 0.2 × I
r
< I < 0.5 × I
r
±
0.2° at 0.5 × I
r
≤ I < 4.0 × I
r
Table 64. Phase-phase voltage measurement VMMXU
Function
Range or value
Accuracy
Voltage
(10 to 300) V
±
0.3% of U at U ≤ 50 V
±
0.2% of U at U > 50 V
Phase angle
(10 to 300) V
±
0.3° at U ≤ 50 V
±
0.2° at U > 50 V
Table 65. Phase-neutral voltage measurement VNMMXU
Function
Range or value
Accuracy
Voltage
(10 to 300) V
±
0.3% of U at U ≤ 50 V
±
0.2% of U at U > 50 V
Phase angle
(10 to 300) V
±
0.3° at U ≤ 50 V
±
0.2° at U > 50 V
Bay control REC670
1MRK511232-BEN E
Pre-configured
Product version: 1.2
ABB
59
