GE Multilin
G30 Generator Protection System
5-227
5 SETTINGS
5.7 CONTROL ELEMENTS
5
•
FREQ RATE 1 MIN FREQUENCY:
This setting defines minimum frequency level required for operation of the element.
The setting may be used to effectively block the feature based on frequency. For example, if the intent is to monitor an
increasing trend but only if the frequency is already above certain level, this setting should be set to the required fre-
quency level.
•
FREQ RATE 1 MAX FREQUENCY:
This setting defines maximum frequency level required for operation of the ele-
ment. The setting may be used to effectively block the feature based on frequency. For example, if the intent is to mon-
itor a decreasing trend but only if the frequency is already below certain level (such as for load shedding), this setting
should be set to the required frequency level.
If the signal source assigned to the frequency rate of change element is only set to auxiliary VT, then the minimum
voltage supervision is 3 V.
Figure 5–106: FREQUENCY RATE OF CHANGE SCHEME LOGIC
NOTE
|
V
_
1
| >
P
I
CKUP
F
R
EQ
RAT
E
1 BLOCK
:
Off
RU
N
F
R
EQ
RAT
E
1 SOURC
E:
Pos seq vo
l
tage (V
_
1)
F
R
EQ
RAT
E
1
F
U
N
CT
I
O
N:
SETTINGS
E
nab
l
ed
=
1
Pos seq current (
I_
1)
F
requency (
F
)
A
N
D
F
R
EQ
RAT
E
1 OV SUPV
P
I
CKUP
:
SETTING
SETTING
| I_
1
| >
P
I
CKUP
RU
N
F
R
EQ
RAT
E
1 OC SUPV
P
I
CKUP
:
SETTING
F >
M
IN & F <
MAX
RU
N
F
R
EQ
RAT
E
1 M
IN
F
R
EQ
U
EN
CY
:
SETTINGS
F
R
EQ
RAT
E
1 MAX
F
R
EQ
U
EN
CY
:
A
N
D
Ca
l
cu
l
ate df/dt
RU
N
df/dt
>
P
I
CKUP
RU
N
SETTINGS
F
R
EQ
RAT
E
1 P
I
CKUP
:
F
R
EQ
RAT
E
1 TR
EN
D
:
FLEXLOGIC OPERANDS
F
R
EQ
RAT
E
1 DPO
F
R
EQ
RAT
E
1 OP
F
R
EQ
RAT
E
1 PKP
F
R
EQ
RAT
E
1 R
E
S
E
T
D
E
LAY
:
SETTINGS
F
R
EQ
RAT
E
1 P
I
CKUP
D
E
LAY
:
t
PKP
t
RST
832023A2.CDR
Содержание G30
Страница 10: ...x G30 Generator Protection System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 G30 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 414: ...5 274 G30 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 456: ...8 2 G30 Generator Protection System GE Multilin 8 1 DIRECTIONAL PRINCIPLE 8 THEORY OF OPERATION 8 ...
Страница 470: ...9 14 G30 Generator Protection System GE Multilin 9 1 SETTING EXAMPLE 9 APPLICATION OF SETTINGS 9 ...
Страница 484: ...11 12 G30 Generator Protection System GE Multilin 11 6 DISPOSAL 11 MAINTENANCE 11 ...
Страница 512: ...A 28 G30 Generator Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 620: ...B 108 G30 Generator Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 666: ...E 10 G30 Generator Protection System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Страница 678: ...F 12 G30 Generator Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 687: ...GE Multilin G30 Generator Protection System H 7 APPENDIX H H 2 ABBREVIATIONS H Z Impedance Zone ...