4.4.1.9 Technical data
Table 485: 46 Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the measured
current: f
n
±1.5% of the set value or ±0.002 × I
n
Pickup time
1)2)
Minimum Typical Maximum
I
Fault
= 2 × set
Pickup
value
I
Fault
= 10 × set
Pickup
value
23 ms
15 ms
26 ms
18 ms
28 ms
20 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Trip time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Trip time accuracy in inverse time mode
±5.0% of the theoretical value or ±20 ms
3)
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1) Negative sequence current before fault = 0.0, f
n
= 50 Hz, results based on statistical distribution of 1000
measurements
2) Includes the delay of the signal output contact
3) Maximum
Pickup value
= 2.5 × I
n
,
Pickup value
multiples in range of 1.5...20
4.4.1.10 Technical revision history
Table 486: 46 Technical revision history
Technical revision
Change
B Minimum and default values changed to 40 ms for
the
Trip delay time
setting
C Step value changed from 0.05 to 0.01 for the
Time
multiplier
setting
D Internal improvement
E Internal Improvements
4.4.2 Phase discontinuity protection 46PD
4.4.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Phase discontinuity protection PDNSPTOC I2/I1> 46PD
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 593
Technical Manual
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