Entec EVRC2A-N6-NT - Page 173

RECLOSER CONTROL EVRC2A-N6,NT http://www.entecene.co.kr
163
ENHANCED TECHNOLOGY
Figure 7-8. Phasor Diagram for I
1
Directional Polarization
The phase direction control in the following four settings should be enabled.
PRIMARY SETTING / PROTECTION / DIRECTION / PHASE DIRECTION / Type
Range
OFF, FOR, REV
Default
OFF
Step
~
OFF : None direction
FOR : Forward direction
REV : Reverse direction
PRIMARY SETTING / PROTECTION / DIRECTION / PHASE DIRECTION / M.T.A
Range
0 ~ 359 degree
Default
300
Step
1 degree
Enter the Maximum Torque Angle. The Maximum Torque Angle
setting determines the range of current direction for the polarizing
voltage.
For typical distribution systems, the faulted angle of the phase will be
approximately ∠30∼∠60 degree
M
a
x
i
m
u
m
T
o
r
q
u
e
L
i
n
e
V1
Z
e
r
o
T
o
r
q
u
e
L
in
e
F
o
r
w
a
r
d
R
e
v
e
r
s
e
I1
Maximum Torque Angle :
set 300 degree
Typical Fault Angle
Polarizing Referance
Voltage:
[PHASE DIRECTION]
Type: OFF
>M.T.A: 300
M.P.V: 0.20
[PHASE DIRECTION]
>Type: OFF
M.T.A: 300
M.P.V: 0.20