ABB RELION REX640 Technical Manual page 787

1MRS759142 F
4.3.6.11 Technical data
Table 715: HIxPDIF Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
1
Measurement mode = default (depends on stage), current before fault = 0.0 × I
current with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements.
2
Measured with static signal output (SSO).
REX640
Technical Manual
1, 2
I = 2.0 × set
Fault
value
I = 10 × set
Fault
value
Value
Depending on the frequency of the current
measured: f ±2 Hz
n
±1.5% of the set value or ±0.002 × I
Minimum
Start
8 ms
Start
7 ms
Typically <40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
Protection functions
n
Typical Maximum
11 ms 19 ms
9 ms 11 ms
, f = 50 Hz, fault
n n
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