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141, 1833
DNOC2F
&
157, 1849
DNOC2R
&
"FWD"
[DNC2-DIR]
"REV"
+
[DNC2-2F]
+
"BLK"
&
ICD
[DNC2EN]
+
"ON"
1
1565
DNOC2 BLOCK
Figure 2.1.48
Settings
The table below shows the setting elements necessary for the DNOC protection and their setting
ranges.
Element
Range
DNC1
0.5 - 10.0 A
(0.10 – 2.00 A)(*1)
TDNC1P
0.010 – 1.500
(TMS)
TDNC1D
0.00 – 300.00 s
TDNC1RD
0.0 – 300.0 s
TDNC1RP
0.010 – 1.500
(RTMS)
−95° – 95°
DNCθ
DNC2
0.5 - 10.0 A
(0.10 – 2.00 A)(*1)
TDNC2
0.00 – 300.00 s
[MDNC1]
DT/IEC/IEEE/US/CON
[MDNC1C]
MDNC1C-IEC
NI / VI / EI / LTI
MDNC1C-IEEE
MI / VI / EI
MDNC1C-US
CO2 / CO8
[DNC1R]
DEF / DEP (*2)
[DNC1-DIR]
FWD / REV
[DNC1-2F]
NA / BLK
[DNC1EN]
Off / On
[DNC2-DIR]
FWD / REV
[DNC2-2F]
NA / BLK
[DNC2EN]
Off / On
[APPL-CT]
3P / 2P / 1P
(*1) Current values shown in the parenthesis are in the case of a 1 A rating. Other current
654
≥1
&
Negative Sequence Overcurrent Protection DNOC2 Scheme Logic
Step
0.1 A
(0.01 A)
0.001
0.01 s
0.1 s
0.001
1°
0.1 A
(0.01 A)
0.01 s
⎯
⎯
54
TDNC2
0
t
&
0.00 - 300.00s
Default
Remarks
2.0 A
DNOC1 threshold setting.
(0.40 A)
1.000
DNOCI1 time multiplier setting. Required if
[MNC1] = IEC, IEEE, US or CON.
1.00 s
NOC1 definite time setting. Required if
[MNC1] = DT.
0.0 s
NOCI1 definite time delayed reset. Required if
[MNC1] = IEC or [NC1R] = DEF.
1.000
NOCI1 dependent time delayed reset time
multiplier. Required if [NC1R] = DEP.
−45°
DNOC1 and DNOC2 characteristic angle
1.0 A
DNOC2 threshold setting.
(0.20 A)
1.00 s
DNOC2 definite time setting
DT
DNOC1 characteristic
DNOCI1 inverse curve type.
NI
Required if [MDNC1] = IEC.
MI
Required if [MDNC1] = IEEE.
CO2
Required if [MDNC1] = US.
DEF
DNOCI1 reset characteristic. Required if
[MDNC1] = IEEE, US or CON.
FWD
DNOC1 directional characteristic
NA
Blocked by ICD
Off
DNOC1 Enable
FWD
DNOC2 directional characteristic
NA
Blocked by ICD
Off
DNOC2 Enable
3P
Three-phase current input
6 F 2 S 0 8 4 2
438
DNOC2 ALARM
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