CHAPTER 5: SETTINGS FLEXLOGIC
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-171
5
ELEMENT:
Phase undervoltage
PHASE UV1 PKP
PHASE UV1 OP
PHASE UV1 DPO
PHASE UV1 PKP A
PHASE UV1 PKP B
PHASE UV1 PKP C
PHASE UV1 OP A
PHASE UV1 OP B
PHASE UV1 OP C
PHASE UV1 DPO A
PHASE UV1 DPO B
PHASE UV1 DPO C
At least one phase of phase undervoltage 1 has picked up
At least one phase of phase undervoltage 1 has operated
All phases of phase undervoltage 1 have dropped out
Phase A of phase undervoltage 1 has picked up
Phase B of phase undervoltage 1 has picked up
Phase C of phase undervoltage 1 has picked up
Phase A of phase undervoltage 1 has operated
Phase B of phase undervoltage 1 has operated
Phase C of phase undervoltage 1 has operated
Phase A of phase undervoltage 1 has dropped out
Phase B of phase undervoltage 1 has dropped out
Phase C of phase undervoltage 1 has dropped out
PHASE UV2 to 3 Same set of operands as shown for PHASE UV1
ELEMENT:
Selector switch
SELECTOR 1 POS Y
SELECTOR 1 BIT 0
SELECTOR 1 BIT 1
SELECTOR 1 BIT 2
SELECTOR 1 STP ALARM
SELECTOR 1 BIT ALARM
SELECTOR 1 ALARM
SELECTOR 1 PWR ALARM
Selector switch 1 is in Position Y (mutually exclusive operands)
First bit of the 3-bit word encoding position of selector 1
Second bit of the 3-bit word encoding position of selector 1
Third bit of the 3-bit word encoding position of selector 1
Position of selector 1 has been pre-selected with the stepping up control
input but not acknowledged
Position of selector 1 has been pre-selected with the 3-bit control input but
not acknowledged
Position of selector 1 has been pre-selected but not acknowledged
Position of selector switch 1 is undetermined or restored from memory when
the relay powers up and synchronizes to the three-bit input
SELECTOR 2 Same set of operands as shown for SELECTOR 1
ELEMENT:
Setting group
SETTING GROUP ACT 1
SETTING GROUP ACT 2
SETTING GROUP ACT 3
SETTING GROUP ACT 4
SETTING GROUP ACT 5
SETTING GROUP ACT 6
Setting group 1 is active
Setting group 2 is active
Setting group 3 is active
Setting group 4 is active
Setting group 5 is active
Setting group 6 is active
ELEMENT:
Disturbance detector
SRC1 50DD OP
SRC2 50DD OP
SRC3 50DD OP
SRC4 50DD OP
SRC5 50DD OP
SRC6 50DD OP
Source 1 disturbance detector has operated
Source 2 disturbance detector has operated
Source 3 disturbance detector has operated
Source 4 disturbance detector has operated
Source 5 disturbance detector has operated
Source 6 disturbance detector has operated
ELEMENT:
VTFF (Voltage
transformer fuse
failure)
SRC1 VT FF OP
SRC1 VT FF DPO
SRC1 VT FF VOL LOSS
SRC1 VT FF ALARM
Source 1 VT fuse failure detector has operated
Source 1 VT fuse failure detector has dropped out
Source 1 has lost voltage signals (V2 below 10% and V1 below 5% of nominal)
Source 1 has triggered a VT fuse failure alarm
SRC1 VT NEU WIRE OPEN Source 1 VT neutral wire open detected. When the VT is connected in Delta,
do not enable this function because there is no neutral wire for Delta
connected VT.
SRC2 VT FUSE FAIL to SRC6 Same set of operands as shown for SRC1 VT FF
Operand type Operand syntax Operand description
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