Name Type Values (Range) Unit Description
U_3H_N FLOAT32 0.00...40.00 xUn Neutral side 3rd harmonic
voltage amplitude
U_3HANGL_T_N FLOAT32 -180.00...180.00 deg Phase angle between 3rd
harmonic terminal and neutral
voltage
27/59THN
Enum 1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Status
4.2.7.9 Technical data
Table 414: 27/59THN Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
voltage:
f
n
±2 Hz
±5% of the set value or ±0.004 × V
n
Pickup time
1)2)
Typically 35 ms
Reset time Typically 35 ms
Reset ratio Typically 0.96 (differential mode)
Typically 1.04 (under voltage mode)
Trip time accuracy ±1.0% of the set value of ±20 ms
1) f
n
= 50 Hz, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
4.2.8 Multifrequency admittance-based ground-fault protection 67YN
4.2.8.1 Identification
Description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Multifrequency admittance-based
ground-fault protection
MFADPSDE Io> ->Y 67YN
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 437
Technical Manual
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