Entec ETMFC610 - Page 277

Multi-Function Control ETMFC610 http://www.entecene.co.kr
267
EN
HANCED
TEC
HNOLOGY
The negative sequence directional controls in following four settings should be enabled.
GROUP # / DIRECTION / NEG SEQ’ / Type
Range
NONE, FORWARD, REVERSE
Default
NONE
Step
~
Set Negative sequence direction type.
NONE : Regardless of negative sequence direction, Negative sequence
fault indication and overcurrent are detected by normal
current(I
2
).
FOR : Negative sequence fault indication (+) Negative sequence
overcurrent are detected when forward negative sequence
direction.
(-) Negative sequence overcurrent is detected when reverse
negative sequence direction.
REV : Negative sequence fault indication (+) Negative sequence
overcurrent are detected when reverse negative sequence
direction.
(-) Negative sequence overcurrent is detected when forward
negative sequence direction.
GROUP # / DIRECTION / NEG SEQ’ / M.T.A
Range
0 ~ 359 degree
Default
135
Step
1 degree
In case that negative sequence over current is occurred, Minimum
Torque Angle of negative sequence current(I
2
) against zero phase
voltage(V
2
) is set
GROUP # / DIRECTION / NEG SEQ’ / M.P.V(V2)
Range
0(OFF), 0.10 ~ 0.80 xVT
Default
0.30
Step
0.01 xVT
Set Minimum Polarizing Voltage to check Negative Sequence. Voltage
shall be higher than this set value to check the direction. Otherwise,
direction check will be blocked. In case of setting 0(OFF), direction
checking is disabled.
[NEG SEQ
’]
>Type: NONE
M.T.A: 135
M.P.V(V2): 0.30
Block OC: YES
[NONE/FOR/REV]
[NEG SEQ
’]
Type: NONE
>M.T.A: 135
M.P.V(V2): 0.30
Block OC: YES
[0~359:1Lead]
[NEG SEQ
’]
Type: NONE
M.T.A: 135
>M.P.V(V2): 0.30
Block OC: YES
0(OFF),0.10~0.80xVT