4–318
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
MONITORING
CHAPTER 4: SETPOINTS
Figure 4-133: Harmonic Detection logic diagram
894000A2.cdr
LED
:PICKUP
SETPOINT
BLOCK
:
Of
f=
0
AND
SETPOINT
FUNCTION
:
Disabled
Alarm
Latched
Alarm
Configurable
OR
SETPOINT
PICKUP
:
W
1_
HDF
≤
PICKUP
RUN
SETPOINT
PICKUP
DELA
Y
:
t
PKP
0
W
1
Harm Derat OP
FlexLogic Operands
W
1
Harm Derat PKP
AND
AND
Command
RESET
OR
LED
:ALARM
SETPOINT
MINIMUM OPER CURRENT
:
IA
≥
MINIMUM
RUN
S
LA
TCH
Set
-
Dominant R
Phase
A Current
(IA
)
Phase B Current
(IB
)
Phase C Current
(IC)
Phase
A Harmonics
Phase B Harmonics
Phase C Harmonics
IB
≥
MINIMUM
IC
≥
MINIMUM
SETPOINT
OUTPUT
RELA
Y X
Do Not Operate
,Operate
W
1
Current Harmonics
W
1
Current Input
Calculate Harmonic
Derating Factor
(W
1_
HDF
)
AND
Phase
A Harmonics
Phase B Harmonics
Phase C Harmonics
W
2
Current Harmonics
Calculate Harmonic
Derating Factor
(W
2_
HDF
)
Phase
A Harmonics
Phase B Harmonics
Phase C Harmonics
W
3
Current Harmonics
Calculate Harmonic
Derating Factor
(W
3_
HDF
)
Load Limit Reduced
LED
:LOAD
-LIMIT
REDUCED
W
2_
HDF
<
0.
96
W
1_
HDF
<
0.
96
W
3_
HDF
<
0.
96
OR
Содержание 869
Страница 10: ...VIII 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ...
Страница 48: ...1 38 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION ...
Страница 78: ...2 30 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ELECTRICAL INSTALLATION CHAPTER 2 INSTALLATION ...
Страница 127: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 49 ...
Страница 129: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 51 ...
Страница 538: ...4 406 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 4 SETPOINTS ...
Страница 578: ...6 22 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 6 METERING ...
Страница 592: ...7 14 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CLEAR RECORDS CHAPTER 7 RECORDS ...