ABB RET670 Product Manual page 77

ABB
Transformer protection RET670
Customized
Product version: 1.2
Monitoring
Table 74. Measurements CVMMXN
Function
Frequency
Voltage
Connected current
Active power, P
Reactive power, Q
Apparent power, S
Power factor, cos (φ)
Table 75. Phase current measurement CMMXU
Function
Current
Phase angle
Table 76. Phase-phase voltage measurement VMMXU
Function
Voltage
Phase angle
Table 77. Phase-neutral voltage measurement VNMMXU
Function
Voltage
Phase angle
Range or value
(0.95-1.05) × f
r
(0.1-1.5) ×U
r
(0.2-4.0) × I
r
0.1 x U < U < 1.5 x U
r r
0.2 x I < I < 4.0 x I
r r
0.1 x U < U < 1.5 x U
r r
0.2 x I < I < 4.0 x I
r r
0.1 x U < U < 1.5 x U
r r
0.2 x I < I < 4.0 x I
r r
0.1 x U < U < 1.5 x U
r r
0.2 x I < I < 4.0 x I
r r
Range or value
(0.1-4.0) × I
r
(0.1–4.0) x I
r
Range or value
(10 to 300) V
(10 to 300) V
Range or value
(10 to 300) V
(10 to 300) V
1MRK 504 117-BEN D
Accuracy
± 2.0 mHz
± 0.5% of U at U£U
r r
± 0.5% of U at U > U
r
± 0.5% of I at I £ I
r r
± 0.5% of I at I > I
r
± 1.0% of S at S ≤ S
r r
± 1.0% of S at S > S
r
Conditions:
0.8 x U < U < 1.2 U
r r
0.2 x I < I < 1.2 I
r r
± 0.02
Accuracy
± 0.2% of I at I ≤ 0.5 × I
r r
± 0.2% of I at I > 0.5 × I
r
± 0.5° at 0.2 × I < I < 0.5 × I
r r
± 0.2° at 0.5 × I ≤ I < 4.0 × I
r r
Accuracy
± 0.3% of U at U ≤ 50 V
± 0.2% of U at U > 50 V
± 0.3° at U ≤ 50 V
± 0.2° at U > 50 V
Accuracy
± 0.3% of U at U ≤ 50 V
± 0.2% of U at U > 50 V
± 0.3° at U ≤ 50 V
± 0.2° at U > 50 V
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