Name Type Values (Range) Unit Description
I_ANGL_B1_B2 FLOAT32 -180.00...180.00 deg Current phase angle diff
between winding 1 and
2, phase B
I_ANGL_C1_C2 FLOAT32 -180.00...180.00 deg Current phase angle diff
between winding 1 and
2, phase C
I_5H_RAT_A FLOAT32 0.00...1.00 Differential current fifth
harmonic ratio, phase A
I_5H_RAT_B FLOAT32 0.00...1.00 Differential current fifth
harmonic ratio, phase B
I_5H_RAT_C FLOAT32 0.00...1.00 Differential current fifth
harmonic ratio, phase C
TR2PTDF Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.3.2.10 Technical data
Table 345: TR2PTDF Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the current
measured: f
n
±2 Hz
±3.0% of the set value or ±0.002 x I
n
Operate time
1)2)
Minimum Typical Maximum
Low stage
High stage
34 ms
21 ms
40 ms
22 ms
44 ms
24 ms
Reset time < 40 ms
Reset ratio Typical 0.96
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5, …
1) Current before fault = 0.0, f
n
= 50 Hz, results based on statistical distribution of 1000 measurements
2) Includes the delay of the output contact. When differential current = 2 x set operate value and f
n
=
50 Hz.
4.3.3 Numerically stabilized low-impedance restricted earth-fault
protection LREFPNDF
4.3.3.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Numerically stabilized low-impedance
restricted earth-fault protection
LREFPNDF dIoLo> 87NL
Section 4 1YHT530004D05 D
Protection functions
422 615 series
Technical Manual
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