GUID-8E589324-78E1-4E05-8FD9-49607B977DA2 V1 EN
Figure 213: Directional characteristic of 67YN
The residual current is recommended to be measured with accurate core
balance current transformer to minimize the measurement errors,
especially phase displacement. This is especially important, when high
sensitivity of protection is targeted.
The characteristic Tilt angle should reflect the measurement errors, that is,
the larger the measurement errors, the larger the Tilt angle setting should
be. Typical setting value of 5 degrees is recommended.
The detected fault direction is available in the Monitored data view as parameter
DIRECTION.
Section 4 1MAC059074-MB A
Protection functions
444 615 series ANSI
Technical Manual
To Next Page
Loading...
