Table of Contents
Line distance protection REL670
Version 2.2
Monitoring
Table 155. Power system measurement CVMMXN
Function
Frequency
Voltage
Current
Active power, P
Reactive power, Q
Apparent power, S
Power factor, cos (φ)
Table 156. Current measurement CMMXU
Function
Current at symmetrical load
Phase angle at symmetrical load
Table 157. Voltage measurement phase-phase VMMXU
Function
Voltage
Phase angle
Hitachi Energy
M12386-1 v17
Range or value
(0.8-1.2) x f
r
(10 to 300) V
(0.1-4.0) x I
r
(10 to 300) V
(0.1-4.0) x I
r
(100 to 220) V
(0.5-2.0) x I
r
cos φ > 0.7
(10 to 300) V
(0.1-4.0) x I
r
(100 to 220) V
(0.5-2.0) x I
r
cos φ < 0.7
(10 to 300) V
(0.1-4.0) x I
r
(100 to 220) V
(0.5-2.0) x I
r
(10 to 300) V
(0.1-4.0) x I
r
(100 to 220) V
(0.5-2.0) x I
r
GUID-5E04B3F9-E1B7-4974-9C0B-DE9CD4A2408F v6
Range or value
(0.1-4.0) × I
r
(0.1-4.0) × I
r
GUID-374C2AF0-D647-4159-8D3A-71190FE3CFE0 v5
Range or value
(10 to 300) V
(10 to 300) V
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Accuracy
±5.0 mHz for U at 0.2 × U
≤ U < 0.5 × U
r
±3.0 mHz for U at 0.5 × U
≤ U < 1.0 × U
r
±2.0 mHz for U at U ≥ U
r
±0.3% of U at U ≤ 50 V
±0.2% of U at U > 50 V
±0.8% of I at 0.1 x I
< I < 0.2 x I
r
± 0.5% of I at 0.2 x I
< I < 0.5 x I
r
±0.2% of I at 0.5 x I
< I < 4.0 x I
r
±0.5% of S
at S ≤0.5 x S
r
r
±0.5% of S at S > 0.5 x S
r
±0.2% of P
±0.5% of S
at S ≤0.5 x S
r
r
±0.5% of S at S > 0.5 x S
r
±0.2% of Q
±0.5% of S
at S ≤0.5 x S
r
r
±0.5% of S at S >0.5 x S
r
±0.2% of S
<0.02
<0.01
Accuracy
±0.3% of I
at I ≤ 0.5 × I
r
r
±0.3% of I at I > 0.5 × I
r
±1.0 degrees at 0.1 × I
< I ≤ 0.5 × I
r
±0.5 degrees at 0.5 × I
< I ≤ 4.0 × I
r
Accuracy
±0.5% of U at U ≤ 50 V
±0.2% of U at U > 50 V
±0.5 degrees at U ≤ 50 V
±0.2 degrees at U > 50 V
1MRK 506 372-BEN Q
r
r
r
r
r
r
r
131
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