GE D30 Instruction Manual page 380

CONTROL ELEMENTS
SETTI G
Function
Enabled = 1
SOURCE 1
VA
VB
VC
V_2
V_1
I_1
FLEXLOGIC OPERA DS
SRC1 50DD OP
OPEN POLE OP
The OPEN POLE OP operand applies
to the D60, L60, and L90
5
SETTI G
Neutral Wire Open Detect
Enabled = 1
SOURCE 1
3V_0 (3rd Harmonic)
5.8.9.4 Broken conductor detection
SETTINGS  CONTROL ELEMENTS  MONITORING ELEMENTS  BROKEN CONDUCTOR 1(2)
 BROKEN CONDUCTOR 1

5-248
Figure 5-140: VT fuse fail logic
VA’, VB’ and VC’ are the
voltage magnitude of one
cycle before
COMPARATORS
Run
|VA’|-|VA| > 0.2 pu
& |VA’| > 0.8 pu
Run
|VB’|-|VB| > 0.2 pu OR
& |VB’| > 0.8 pu
Run
|VC’|-|VC| > 0.2 pu
& |VC’| > 0.8 pu
Run
V_2 > 0.1 pu
OR
Run
V_1 < 0.05 pu
AND
Run
I_1 > 0.075 pu
Run
TIMER
V_1 < 0.80 pu
2 cycles
Run
AND
I_1 < 0.05 pu
AND
OR
AND
AND
SETTI G
3 HARM PKP
Run
AND
3V_0 3rd Harm >setting
BROKEN CONDUCTOR 1

FUNCTION: Disabled
BROKEN CONDUCTOR 1

SOURCE: SRC 1
BROKEN CONDUCTOR 1

I2/I1 RATIO: 20%
BROKEN CONDUCTOR 1

I1 MIN: 0.10 pu
BROKEN CONDUCTOR 1

I1 MAX: 1.50 pu
BROKEN CONDUCTOR 1

PKP DELAY: 20.000 s
BROKEN CONDCT 1 BLK:

Off
OR
FUSE
FAIL
TIMER
2 cycles
SET
AND
0
Latch
20 cycles
TIMER
30 cycles
RESET
0
Reset-dominant
TIMER
5 cycles
AND
0
TIMER
0
AND 20 cycles
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: 20.0% to 100.0% in steps of 0.1%
Range: 0.05 to 1.00 pu in steps of 0.01
Range: 0.05 to 5.00 pu in steps of 0.01
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic operand
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
AND
FAULT
OR
FLEXLOGIC OPERA DS
SRC1 VT FUSE FAIL OP
SRC1 VT FUSE FAIL DPO
FLEXLOGIC OPERA D
SRC1 VT FUSE FAIL VOL LOSS
FLEXLOGIC OPERA D
OR
SRC1 VT NEU WIRE OPEN
FLEX-A ALOG
SRC1 3V0 3nd Harmonic
827093AQ.CDR