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
Summary of Contents for Relion 670 series
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