GE C70 Instruction Manual page 350

Capacitor bank protection and control system ur series
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5.7 CONTROL ELEMENTS
SETTING
Function
Enabled = 1
Block
Off = 0
SETTING
Control Mode
= Voltage
= VAR
SETTINGS
Source
Volt Drop Compensation Z
Volt Drop Compensation RCA
Vab with LDC
Vbc with LDC
Vca with LDC
Vaver with LDC
V with LDC
1
Vaux
Vag with LDC
Vbg with LDC
Vcg with LDC
SETTING
Volt Operating Signal
SETTING
Source
= V_1 magnitude
= PF
= Q
= S
5
SETTING
VAR Open Mode
Minimize No. of Ops. = 0
Minimize Uptime = 1
5-226
SETTINGS
Volt Level to Close
AND
RUN
AND
V < setting value
Minimum Voltage
RUN
AND
V < setting value
Volt Level to Open
RUN
V > setting value
SETTINGS
VAR Level to Close
RUN
V < setting value
Power Factor Limit
RUN
V < setting value
Minimum Voltage
RUN
V > setting value
VAR Level to Open
RUN
V > setting value
VAR Level to Open
VAR Level to Close
Power Factor Limit
RUN
see note at right
Figure 5–102: AUTOMATIC VOLTAGE REGULATOR SCHEME LOGIC
C70 Capacitor Bank Protection and Control System
SETTING
Delay Before Close
AND
T
DPO
OR
NOTE: The minimize uptime comparator calculates:
Q < S × –
where = 1 – (
AND
SETTING
AND
Delay Before Open
T
DPO
OR
OR
AND
5 SETTINGS
FLEXLOGIC OPERAND
AVR 1 CLOSE OP
0
FLEXLOGIC OPERANDS
AVR 1 CLOSE PKP
AVR 1 CLOSE DPO
Var Level to Close Var Level to Open
+
2
Power Factor Limit
)
FLEXLOGIC OPERAND
AVR 1 OPEN OP
0
FLEXLOGIC OPERANDS
AVR 1 OPEN PKP
AVR 1 OPEN DPO
834739A2.CDR
GE Multilin

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