
Multi-Function Control ETMFC610
http://www.entecene.co.kr
261
EN
HANCED
TEC
HNOLOGY
Phase direction control type can be set in order to detect phase fault and phase overcurrent.
Depending on control type, phase fault and phase overcurrent can be detected in Forward direction
or reverse direction or regardless of direction.
Following
“Figure 8-44. Phasor Diagram for I
1
Directional Polarization”
shows normal current
(I
1
) direction polarity phasor diagram in complex plane.
Figure 8-44.
Phasor Diagram for I
1
Directional Polarization
Ma
xim
um
To
rqu
e L
ine
V
1
Z
er
o
T
o
rq
ue
L
in
e
Fo
rw
ard
Re
ve
rse
I
1
Maximum Torque Angle :
set 300 degree
Typical Fault Angle
Polarizing Referance
Voltage: