Characteristic Value
±1.5% of the set value or ±0.002 × I
n
Voltage:
±1.5% of the set value or ±0.002 × U
n
Phase angle: ±2°
DPHHPDOC Current:
±1.5% of the set value or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0% of the set value
(at currents in the range of 10…40 × I
n
)
Voltage:
±1.5% of the set value or ±0.002 × U
n
Phase angle: ±2°
Minimum Typical Maximum
Start time
1
2
I
Fault
= 2.0 × set
Start
value
39 ms 43 ms 47 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse time mode ±5.0% of the theoretical value or ±20 ms
3
±5.0% of the theoretical value or ±40 ms
3
4
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
4.1.2.12 Technical revision history
Table 285: DPHHPDOC Technical revision history
Technical revision Change
B
Added a new input NON_DIR
C Step value changed from 0.05 to 0.01 for the
Time multiplier
setting.
D Monitored data VMEM_USED indicating volt-
age memory use.
E Internal improvement.
1
Measurement mode
and
Pol quantity
= default, current before fault = 0.0 × I
n
, voltage before fault
= 1.0 × Un, f
n
= 50 Hz, fault current in one phase with nominal frequency injected from random
phase angle, results based on statistical distribution of 1000 measurements
2
Includes the delay of the signal output contact
3
Maximum Start value
= 2.5 × I
n
,
Start value
multiples in range of 1.5...20
4
Valid for (F)DPHLPDOC
1MRS758755 C Protection functions
REC615 & RER615
Technical Manual
265
To Next Page
Loading...
