Overview; Control Elements - GE C70 Instruction Manual

CHAPTER 5: SETTINGS
SETTINGS
NTRL VOL 1 BLK STG1:
Off = 0
INHIBIT STAGE 1
NTRL VOL 1 BLK STG2:
Off = 0
INHIBIT STAGE 2
NTRL VOL 1 BLK STG3:
Off = 0
INHIBIT STAGE 3
NTRL VOL 1 BLK STG4:
Off = 0
INHIBIT STAGE 4
NTRL VOL UNBAL 1
FUNCTION:
Enabled = 1
VA_mag > 0.25 pu
VB_mag > 0.25 pu
VC_mag > 0.25 pu
SETTINGS
NTRL VOL UNBAL 1
BUS 3V0:
NTRL VOL UNBAL 1
SETTINGS
AB RATIO:
NTRL VOL UNBAL 1
NTRL VOL UNBAL 1
BUS SOURCE:
AC RATIO:
VA
VB
VC
V0 or VX (3V0)
NTRL VOL UNBAL 1
NTRL SOURCE:
VX (Vn)

5.8 Control elements

5.8.1 Overview

Control elements are used for control rather than protection. See the Introduction to Elements section at the beginning of
this chapter for information.
5.8.2 Trip bus
SETTINGS  CONTROL ELEMENTS  TRIP BUS  TRIP BUS 1(6)
 TRIP BUS 1

C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
Figure 5-111: Neutral voltage unbalance logic
TIMER
RUN 59NU FUNCTION
5 cycles
0
SETTING
COMMANDS/ NTRL
VOL UNBAL 1 AUTO
SET:
Auto
Manual
Apply?
SETTINGS
NTRL VOL UNBAL 1
STG 1 PKP:
NTRL VOL UNBAL 1
STG 1 SLOPE:
RUN
SETTINGS
NTRL VOL UNBAL 1
STG 2 PKP:
NTRL VOL UNBAL 1
STG 2 SLOPE:
RUN
SETTINGS
NTRL VOL UNBAL 1
STG 3 PKP:
NTRL VOL UNBAL 1
STG 3 SLOPE:
RUN
SETTINGS
NTRL VOL UNBAL 1
STG 4 PKP:
NTRL VOL UNBAL 1
STG 4 SLOPE:
RUN
TRIP BUS 1

FUNCTION: Disabled
TRIP BUS 1 BLOCK:

Off
TRIP BUS 1 PICKUP

DELAY: 0.00 s
COMMANDS
AUTO-SETTING
PROCEDURE
WRITE A NEW SETTING
TIMER
NTRL VOL UNBAL 1
DPO DELAY:
NTRL VOL UNBAL 1
STG 1 PKP DELAY:
FLEXLOGIC OPERAND
t
NTRL VOLT 1 STG1 PKP
PKP
t
DPO
TIMER
NTRL VOL UNBAL 1
DPO DELAY:
NTRL VOL UNBAL 1
STG 2 PKP DELAY:
FLEXLOGIC OPERAND
t PKP
NTRL VOLT 1 STG2 PKP
t
DPO
TIMER
NTRL VOL UNBAL 1
DPO DELAY:
NTRL VOL UNBAL 1
STG 3 PKP DELAY:
FLEXLOGIC OPERAND
t
PKP
NTRL VOLT 1 STG3 PKP
t
DPO
TIMER
NTRL VOL UNBAL 1
DPO DELAY:
NTRL VOL UNBAL 1
STG 4 PKP DELAY:
FLEXLOGIC OPERAND
t
PKP
NTRL VOLT 1 STG4 PKP
t DPO
FLEXLOGIC OPERANDS
NTRL VOLT 1 PKP
NTRL VOLT 1 DPO
Range: Enabled, Disabled
Range: FlexLogic operand
Range: 0.00 to 600.00 s in steps of 0.01
CONTROL ELEMENTS
FLEXLOGIC OPERAND
NTRL VOLT 1 STG1 OP
FLEXLOGIC OPERAND
NTRL VOLT 1 STG2 OP
FLEXLOGIC OPERAND
5
NTRL VOLT 1 STG3 OP
FLEXLOGIC OPERAND
NTRL VOLT 1 STG4 OP
FLEXLOGIC OPERANDS
NTRL VOLT 1 OP
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