ABB RELION REX640 Technical Manual page 368

Protection functions
Characteristic
Start time
Reset time
Reset ratio
Retardation time
Operate time accu-
racy in definite time
mode
Operate time accu-
racy in inverse time
mode
Suppression of har-
monics
4.1.2.13 Technical revision history
Table 413: DPHLPDOC Technical revision history
Product
connectivi
ty level
PCL4
1 Measurement mode and Pol quantity = default, current before fault = 0.0 × I
= 1.0 × U , f = 50 Hz, fault current in one phase with nominal frequency injected from random
n n
phase angle, results based on statistical distribution of 1000 measurements
2
Includes the delay of the signal output contact
3 Start value = 2.5 × I
Maximum
368
DPHHPDOC
1, 2
I = 2.0 x set
Fault
Start value
Technical Change
revision
Start value maximum value extended to 10.00xIn.
G Setting
Start value multiples in range of 1.5...20
,
n
Value
Phase angle: ±2°
Current:
±1.5% of the set value or ±0.002 × I
(at currents in the range of 0.1...10 × I
±5.0% of the set value
(at currents in the range of 10...40 × I
Voltage:
±1.5% of the set value or ±0.002 × U
Phase angle: ±2°
Minimum Typical
39 ms 43 ms
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
1MRS759142 F
n
)
n
)
n
n
Maximum
47 ms
3
, voltage before fault
n
REX640
Technical Manual