GE D90 Plus - Page 30

20 D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION
FLEXCURVES™
Number: .................................................................. 4 (A through D)
Reset points:.......................................................... 40 (0 through 1 of pickup)
Operate points:....................................................80 (1 through 20 of pickup)
Time delay: ............................................................0 to 65535 ms in steps of 1
FLEXELEMENTS™
Elements:................................................................ 16
Operating signal: ................................................any analog actual value, or two values in differential mode
Operating signal mode:................................... signed or absolute value
Operating mode:.................................................level, delta
Comparator detection: ....................................over, under
Pickup level:...........................................................–90.000 to 90.000 pu in steps of 0.001
Hysteresis:..............................................................0.1 to 50.0% in steps of 0.1
Delta dt:................................................................... 20 ms to 60 days
Pickup delay:.........................................................0.000 to 65.535 seconds in steps of 0.001
Dropout delay: .....................................................0.000 to 65.535 seconds in steps of 0.001
FLEXMATRIX
Principle: .................................................................aggregates and conditions signals for tripping and auxiliary
functions
Timing accuracy: ................................................±1 ms
FLEX STATES
Number: .................................................................. up to 256 logical variables grouped under 16 Modbus
addresses
Programmability: ................................................any logical variable, contact, or virtual input
GROUND DISTANCE
Characteristic:......................................................mho (memory polarized or offset) or quad (memory polarized
or non-directional), selectable individually per zone
Reactance polarization:...................................negative-sequence or zero-sequence current
Non-homogeneity angle:................................–40 to 40° in steps of 1
Zones:....................................................................... 5
Directionality:........................................................forward, reverse, or non-directional per zone
Reach (secondary ohms):................................0.02 to 250.00 ohms in steps of 0.01
Reach accuracy: ................................................. ±5%, including the effect of CVT transients up to an SIR of 30
for V < 1.1 × V
nominal
Distance characteristic angle:......................30 to 90° in steps of 1
Comparator limit angle: ..................................30 to 90° in steps of 1
Characteristic angle:.........................................30 to 90° in steps of 1
Limit angle: ............................................................30 to 90° in steps of 1
Z0/Z1 magnitude:...............................................0.00 to 10.00 in steps of 0.01
Z0M/Z1 angle: ......................................................–90 to 90° in steps of 1
Z0M/Z1 magnitude:...........................................0.00 to 7.00 in steps of 0.01
Z0/Z1 angle: ..........................................................–90 to 90° in steps of 1
Right and left blinder reach:..........................0.02 to 500.00 ohms in steps of 0.01
Right and left blinder characteristic
angle: ..................................................................60 to 90° in steps of 1
Time delay: ............................................................0.000 to 65.535 seconds in steps of 0.001
Timing accuracy: ................................................±3% or 4 ms (whichever is greater)
Current supervision level: ...............................neutral current (3I_0)
Current supervision pickup:........................... 0.050 to 30.000 pu in steps of 0.001
Memory duration:...............................................5 to 25 cycles in steps of 1
Voltage supervision pickup:...........................0 to 5.000 pu in steps of 0.001 (series compensation
applications)
Operation time:....................................................1 to 1.5 cycles (typical)
Reset time: ............................................................. 1 power cycle (typical)