RECLOSER CONTROL EVRC2A-N6,NT
http://www.entecene.co.kr
164
EN
HANCED
TEC
HNOLOGY
PRIMARY SETTING / PROTECTION / DIRECTION / PHASE DIRECTION / M.P.V
Range
0 ~ 1.25 xVT(secondary nominal voltage)
Default
0.20
Step
0.01
Enter the minimum polarizing voltage as a fraction of the secondary
nominal voltage.
PRIMARY SETTING/PROTECTION / DIRECTION / PHASE DIRECTION / BLOCK OC
Range
NO, YES
Default
NO
Step
~
The BLOCK OC setting determines the overcurrent tripping conditions
when the polarizing voltage drops below minimum polarizing voltage.
If BLOCK OC = NO,
then tripping by the overcurrent elements will be permitted.
If BLOCK OC = YES,
then tripping by the overcurrent elements will be blocked.
NOTE )
EVRC2A version prior to 5.1 this setting is applied conversely.
For example, “NO” indicates that directional elements will be
blocked by M.P.V. “YES” indicates that directional elements will
be operated regardless of M.P.V.
7.13.2. Ground Directional Controls (67G)
The zero sequence voltage 3V
0
provides the direction of ground control in the power system. The
ground direction is determined as comparing the zero sequence voltage(3V
0
) to the direction of
the zero sequence current(I
g
). The Maximum Torque Angle is set between
∠
0 to
∠
359 degree.
The factory default value for maximum torque angle has a lead of
∠
135 degree over 3V
0
.
If the polarized voltage drops below minimum polarized voltage, the ground direction control
will lose direction and will not trip. Then any fault on the distribution line may trip due to the
ground overcurrent element, which is non-directional.
The ground direction control can be programmed to either non-direction or provide a trip for
current flow in the forward or reverse direction only.
[PHASE DIRECTION]
M.T.A: 300
M.P.V: 0.20
>BLOCK OC: NO
[PHASE DIRECTION]
Type: OFF
M.T.A: 300
>M.P.V: 0.20
Summary of Contents for EVRC2A-N6-NT
Page 2: ......
