ABB RET670 Product Manual page 67

ABB
Transformer protection RET670 ANSI
Pre-configured
Product version: 1.2
Monitoring
Table 47. Measurements CVMMXN
Function
Frequency
Connected current
Table 48. Supervision of mA input signals
Function
mA measuring function
Max current of transducer to
input
Min current of transducer to
input
Alarm pickup for input
Warning pickup for input
Alarm hysteresis for input
Table 49. Event counter CNTGGIO
Function
Counter value
Max. count up speed
Range or value
(0.95-1.05) × f
n
(0.2-4.0) × I
n
Range or value
± 5, ± 10, ± 20 mA
0-5, 0-10, 0-20, 4-20 mA
(-20.00 to +20.00) mA
(-20.00 to +20.00) mA
(-20.00 to +20.00) mA
(-20.00 to +20.00) mA
(0.0-20.0) mA
Range or value
0-10000
10 pulses/s
1MRK 504 118-BUS A
Accuracy
± 2.0 mHz
± 0.5% of I at I £ I
n n
± 0.5% of I at I > I
n
Accuracy
± 0.1 % of set value ± 0.005 mA
Accuracy
-
-
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