GE D90 Plus Instruction Manual page 36

SPECIFICATIONS
26
CONTACT INPUTS
Input rating:........................................................... 300 V DC maximum
On threshold: ........................................................ 70% of nominal voltage setting or 20 V (whichever is greater)
Off threshold:........................................................ 30% of nominal voltage setting or 15 V (whichever is greater)
Bounce threshold: .............................................. 50% of nominal voltage setting or 20 V (whichever is greater)
AZ threshold:......................................................... 80% of nominal voltage setting
Overvoltage threshold: .................................... 130% of nominal voltage setting or 285 V maximum
Maximum current:.............................................. 10 mA during turn on, 0.5 mA steady-state
Nominal voltage:................................................. 24 to 250 V
Input impedance: ............................................... active
Recognition time:................................................ <1 ms
Debounce timer: ................................................. 1.50 to 16.00 ms in steps of 0.25
Chatter detection timer:.................................. 1 to 100 seconds
Chatter state changes: .................................... 10 to 100
DISTURBANCE DETECTOR (50DD)
Type: ......................................................................... sensitive current disturbance detector
Range:...................................................................... 0.004 to 0.04 pu (twice the current cut-off level threshold)
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
FLEXMATRIX
Principle: ................................................................. aggregates and conditions signals for tripping and auxiliary
Timing accuracy: ................................................ ±1 ms
FLEX STATES
Number: .................................................................. up to 256 logical variables grouped under 16 Modbus
Programmability: ................................................ any logical variable, contact, or virtual input
functions
addresses
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION