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Table 93. Energy monitoring (EPDMMTR)
Characteristic
Value
Operation accuracy
At all three currents in range 0.10…1.20 x In
n
At all three voltages in range 0.50…1.15 x U
n
At the frequency f = f
n
Active power and energy in range |PF| > 0.71
Reactive power and energy in range |PF| <
0.71
±1.5% for energy
Suppression of harmonics
DFT: -50dB at f = n x f
n
, where n = 2, 3, 4, 5,
…
Supervision functions
Table 94. Circuit breaker condition monitoring (SSCBR)
Characteristic
Value
Current measuring accuracy
At the frequency f = f
n
±1.5% or ±0.002 × I
n
(at currents in the
range of 0.1…10 × I
n
)
±5.0% (at currents in the range of 10…40 ×
I
n
)
Operate time accuracy
±1.0% of the set value or ±20 ms
Traveling time measurement
±10 ms
Table 95. Current circuit supervision (CCRDIF)
Characteristic
Value
Operate time
1)
< 30 ms
1) Including the delay of the output contact.
Table 96. Current circuit supervision (CCRDIF) main settings
Parameter
Function
Values (Range)
Step
Start value
CCRDIF
0.05...2.00 pu
0.01
Maximum operate
current
CCRDIF
0.05...5.00 pu
0.01
Feeder Protection and Control
1MRS756380 A
REF630
Product version: 1.0
Issued: 15.09.2009
ABB
59
Содержание REF630
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