1MAC309294-MB F Section 4
Protection functions
RER620 263
Technical Manual
4.5.5.8 Monitored data
Table 277: 32P Monitored data
4.5.5.9 Technical data
Table 278: 32P Technical data
4.5.6 Directional negative/zero sequence power protection 32N
Directional negative/zero sequence power protection (32N) is used to detect the direction
of negative sequence power or residual power.
Release signal is given if the angle difference between polarizing and operating quantity
is in predefined direction (forward or reverse direction). The release signal is given with a
definite time delay.
4.5.6.1 Identification
Name Type Values (Range) Unit Description
DIRECTION ENUM 0=unknown
1=forward
2=backward
Direction information
ANGLE_RCA REAL Angle between operating angle and characteristic angle
Characteristic Value
Operation accuracy Depending on the frequency measured: fn ±2Hz
±1.5% of the current or ±0.01A
±1.5% of the voltage or ±1V
±3.0% of the characteristic angle or ±4 Deg
Functional description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Directional negative/zero sequence power
protection
DNZSRDIR Q>-> 32N
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